Tube compressor schematic. Each unit is equipped with the option for a faster release.

Tube compressor schematic Jun 15, 2022 · Hi! I wanna to build a compressor. Saw a circuit fragment in an ARRL handbook from 1961. I am desperately trying to find a schematic for this unit. With this simple change (1 cap), your Shaka III will be clearer, brighter and punchier. These units are widely used on bass guitars, vocals, and other legato sources. Nov 22, 2010 · very interesting and about effectrode, I noticed all their tube pedals are 12V DC powered how comes? how do they reach 300V dc for tubes?? SOLO VLA – Single-Channel Rackmount Multi-Voice Tube/Opto Compressor Owner's Manual La2a As mentioned in the last chapter the LA2A is one of the most iconic compressors in recording history. A typical pneumatic system schematic diagram will show the flow of compressed air from the compressor to the various devices. action. Online since Y2K. I was looking for a circuit that can be used in a FX loop that works similar to a SS pedal. All available circuits have limitations, and this article looks at the various techniques used. The characteristics looks a lot Nov 7, 2012 · Download a short piece from RADIO-ELECTRONICS, 1950, on the subject of a DIY audio-compressor: DOWNLOAD: DiodeCompressor1950 This promises to be an interesting unit. Feb 16, 2007 · Hello, I have an old Webster Electric Tube compressor that I would like to restore. 99 The Tube Amplifier Schematic Bible Volume 1: Library of Vintage Tube Amps (A-F) (Manufacturers A-F) Amazon. Build a legendary 1176LN compressor with the Gyraf 1176 Clone PCB Kit. The compressor uses a 12AX7 tube makeup gain amplifier where you can add, with the Output Gain control, up to 20 dB of additional gain. Ultra Simple PASSIVE Audio Compressor - With circuit schematics, measurements, and balanced version! Sep 3, 2007 · Reposting the content from a thread that went off-topic and is archived now. May 8, 2024 · Drawmer 1960 vacuum tube compressor preamplifier rack unit Drawmer 1968 dual vacuum tube compressor at gear4musicSquasherator vacuum tube compressor Audio compressor circuit components liabilitiesVacuum tube schematic symbols. Extensive repository of guitar pedal effect schematics, detailed guitar FX schematics and guitar effect schematics for DIY builders. Master their unique effects for better mixing results. State-of-the-art, innovative vacuum pumps, components, standardized and fully Missing schematic. The LA-2A Leveling Amplifier is an audio compressor invented by James F. Install it in your API The PC-2A is designed for flexibility, simplicity and outstanding sound quality. For an FX compressor too it might not matter. Unlike other "tube hyped" products on the market, which use 9 to 50 volts, the Black Finger's toroidal transformer allows for a full 300 volts of swing, preserving the attack while Sep 28, 2024 · Download pro audio schematics, free electronic diagrams, and pro audio equipment service manuals for FREE. Apr 16, 2006 · the audio doesn't pass through the tubes on the way to the output jack. When plate current Tube compressor circuit adapted to tube preamp Web, I found this schematic for a tube limiter circuit that is built around a pair of ECC83s, which seems more what Im after. Each unit is equipped with the option for a faster release. UAFX Studio Compressor. The gentle, “forgiving” application of compression from the optical unit combined with the rich tone of the output section provided by premium tube analog circuitry combine to deliver the most lauded “musical” compression that The Drawmer 1960 is a dual vacuum tube compressor and preamplifier combining vintage warmth with modern precision and control. It actually features eight "single-dial" Focusrite compressors, aimed to give Tube Microphone/Instrument/Line Preamp with EQ and Optical Compressor. Apr 20, 2009 · My second tube project, and first to not be from a kit. The Effectrode PC-2A Compressor offer high-end vintage studio compression in a single stompbox. Have a look at the more simple designs, such as the UA 175, Altec, Gates and such. In addition to the refrigeration system, a dehumidifier schematic will also show other important components, such as the fan, control panel, and sensors. Oct 12, 2020 · Hello everyone. Teletronix LA-2A Tube Compressor The Teletronix® Story Teletronix founder Jim Lawrence first used photocells for controlling audio gain in the early 1960s. Nov 10, 2025 · Board index » DIY Forums » Vacuum Tubes / Thermionic Valves All times are UTC [ DST ] A Tube Compressor for the common man In the Gates STA-Level compressor schematic, the GL-6386 tube plays a crucial role in variable gain control, which is essential for the signal compression function. The KT-2A leveling amplifier shall provide a single channel vacuum tube compressor/limiter with optical attenuator in a standard 2U 19" rack mount chassis. While the overall unit is probably not something you’d want to ‘F’ with, the limiter component could be added to a DIY tube mic preamp (perhaps with a true-bypass switch). EL34 World Tube amp building information The EL34 World Tube amp Library of information Click the link above for Tube amp info, Tube amp schematics, Tube amplifier circuit board building information, tube projects, Amp mods, Tube amp transformer diagrams, Photo's, Sound clips. To trouble shoot this, disconnect the parallel compressor's sidechain input ( looks like a shielded cable tp pins A, C , and D). Inspired by the most iconic 1960's Optical Tube Compressor. The optical attenuator acts as a simple passive level controller. I also stock vintage tube amplifier schematics and Photofact service manuals from 1946 through 1963 available via download, and original Photofacts from 1946 through 1970 via US Mail. Now, this may look a lot different than the Altec 436 schematic, but the differences are not too significant – other than the fact that the gates has a regulated power supply, the circuits function in the same way; the main difference is the particular types of tubes that are used. The result is a compressor that exhibits a level of purity and A tube preamp schematic with a 12ax7 tube is a popular choice among audio enthusiasts looking to achieve warm and rich tones in their recordings or amplification setups. Pulse Tube refrigeration (1) is a method which uses this principle Build an SSL Bus Compressor clone with this PCB kit. $21. Does anyone happen to have it? This is an optical tube compressor with Threshold and Gain controls. Tube opto compressor design diyAudio It is therefore an object of this invention to provide a compressor circuit. Sep 28, 2017 · Explore the four main audio compressor circuit types: VCA, FET, OPTO, and VARI-MU. The tube is a 12AU7 by Electro-Harmonix. Does it do still? If so, then replace c2. Negative voltage on suppressor grid decreases plate current and increases screen grid current. A clean, transparent sound is possible with no artefacts or pumping while also being able to create a more noticeable, heavier, denser Here you will find suggestions on various applica-tions of the Tube -Tech CL 1B compressor plug in. The KT-2A shall provide an output gain control which can provide make up gain. The Squasherator name comes from the circuit's ability to squash loud audio peaks down while passing quieter sounds with little attenuation. With only three knobs on the front of which only two actually control the sonics, it’s an extremely simple design. PC-2A Photo-optical Tube Compressor The new gold standard in natural, musical and quiet compression – this little compressor will inspire you to play. And of course , the schematic: Imgur: The most awesome images on the Internet Sidechain circuit tube is 12ax7, makeupgain 12a*7. Sep 4, 2009 · Looking at the schematic, Its playing against the compession controls (ratio and threshold on the front panel controls). an old electronic device used before. Designing and making a tube preamp that can drive a relatively low-impedance input such as a computer's line-in is easy enough, I Aug 14, 2021 · Hi folks, Was thinking about this, with no particular circuit in mind. Prowess Amplifiers offers resources for the guitar tube amplifier builder. Closest I was was a video of a guy that makes one with a led but sounds more like a fuzz pedal. It's configurable for anything between 1 and 5 controls: the schematic shows all of them, but includes suggestions for fixed values to substitute where possible; the "Threshold" control is the Explore the schematic of the legendary Fairchild 660 compressor and learn about its iconic circuitry and audio processing capabilities. Its tube circuitry delivers stacks of head-room and low noise floor for outstanding dynamics. The two x-over frequencies are each made with a single RC circuit thereby preserving optimum summation of the three bands at the output. Jul 1, 2014 · But instead of looking to make a unit with independent pre amp and compressor sections, I am looking to insert this between the first and second stages of a V76m as I also wish to add a passive EQ to make a channel strip. PC-2A Photo-optical Tube Compressor operating at real amp plate voltages all on a special silver-plated printed circuit board. com forum to be the best source for stuff like this I think they have a long list of schematics up, too. The HERCHILD Model 670 is a Tube-based Variable-Mu compressor that faithfully reproduces the design and exact components used in the original. It is used by electronics enthusiasts and musicians who want to understand how a compressor pedal works or who want to build their own compressor pedal from scratch. Apr 26, 2021 · The T25 Tube Compressor features 12AT7WC and 12BH7 dual-triode vacuum tubes in each channel. Schematics & Manuals This page has a lot of guitar amplifier and distortion pedal schematics on it. The Stereo Variable Mu Limiter Compressor from Manley Labs is the GLUE that holds the mix together while crystallizing it into a professional, final product. The cooling is generated at the low temperature TL. LA-2A amplifier pdf manual download. At the time, its electro-luminescent optical gain reduction was quite revolutionary: applying the audio signal to an electro-luminescent light panel which shines on a photo-electric cell which in turn controls the gain. Includes PCBs, schematics, parts list, and detailed instructions for DIY audio enthusiasts. The Teletronix LA-2A meets the LA-3A. This is classic opto-compressor, Which uses electro-luminescent panel and photoresistors to provide gain reduction. com, which I have done extremely minor changes to. There's a theory among a lot of guitarists that a compressor is just. Explore a collection of tube guitar amp schematics for DIY enthusiasts. a compressor on a the Effectrode PC-2A Tube Compressor I totally understand how good. 99 BOSS Audio Systems KIT2 8 Gauge Complete Car Amplifier Installation Wiring Kit with Power Cables, Ground Cables, Turn-On Wire, Speaker Wire, Terminals Speece, Inc. Learn about different types of tube amps, their circuits, and how to build your own guitar amplifier. The G1176: The 1176 is a well-known and classic FET compressor. This proved to work, but introduced distortion to the signal (of course) because of the diodes. I'm guessing that it's basically just an amp stage with integrator cap that is used somehow to adjust View and Download TELETRONIX LA-2A manual online. This little compressor is great in live situations for adding “punch” or fattening up thin single coil pickups. I'm looking for a schematic or even just some notes about the theory of operation. You might be able to make a Maxon RCP660 or ART Levelar clone, if you really want a tube compressor. TUBESESSOR, the optical tube compressor for when you need the sweetest, warmest most natural dynamic control possible, but also want the ability to spice it up on occasion. 99 Vacuum Tube Compressor Schematics Vintage, high voltage, vacuum tube technology harnessed to create unique and exceptional effects pedals. Any info on the unit or where I can find a schematic would be greatly appreciated. Abstract: Printed circuit boards Drawmer 1960 - Front Panel * Meter and output controls Drawmer 1960 - Rear Panel * Rear panel I/O jacks. Jun 18, 2025 · Historical Background With its gentle, program dependent optical compression, and meticulously designed tube amplifier, the LA-2A is a go-to compressor for professional mixers around the world. 8/21/99 - There was an omission in the original schematic - my original Shaka III's MiniBooster is also a treble booster. All you need to know about the legendery Teletronix LA-2A and how to build this tube opto compressor yourself Aug 8, 2009 · Login Register Hello Guest, Please feel free to join us! There are many more parts of the Phorum that only members can see. top down view of LDR and various schematic symbols for LDR in keeping with that ethos, I added the extra compression circuit-a simple optical compressor. The upper part of This build - based upon my La2a layout derived from the original Universal Audio Teletronix 1968 La2a schematic - is an accurate representation of the late 60's original, as well as the current reissue. 's board (which all of you should purchase), here is the capacitor you should change. At first I simply copied the circuit above, substituting the dual diode for 2x 1N4007, and taking signal from the pentode's plate. Jan 16, 2022 · The schematic diagram of a compressor is essentially a visual representation of the complex inner workings of a compressor. I like to breadboard the circuit and make the pcb so, if anyone could give me a hand I'd really Dec 26, 2019 · Hi, i was considering about attempting to build a small tube compressor unit using only a few tubes, (i will attach the schematic i'm planning to base it on). it passes through the 470k resistor between the input and output jack, and is divided (and thereby "compressed") by the last tube stage's action as a variable resistance. 22 GB and the range is expanding all the time. It’s all laid out in a very large, 1-page table. Full dynamic control from soft compression to hard- knee limiting can be achieved with threshold, ratio-compression, attack and release controls plus gain reduction selection on the large VU meter The Altec 436C is a single channel tube compressor with fixed attack control and variable-mu topology, where ratio increases with the amount of gain reduction. Topic: Picture. Stuffed full of 22 valves and 9 transformers and operating at high voltage a solid, professional result is achieved. It is also the third of my vacuum tube effect projects, following in the footsteps of the FuzzniKator Tube Distortion/Preamp effect and the Liquidator Tube Phaser/Chorus effect. Sep 9, 2025 · UAFX LA-2A Overview Get the rich tube tones of a legendary limiter. Long time ago I recovered this Compressor / Expansor schematic (planned to be used in a Bass amp) I'm not confident at all with this kind of things, so I'm. Both plug-ins have their own unique features and sonic characteristics. RADIO-ELECTRONIC. I’ve only seen one of these in a picture in The TUBE-TECH multiband compressor SMC 2B/M is three-band stereo compressor. Due to its high price and fixed set-up, the U73 only found its way outside Germany in one specific application; as a final mastering compressor for disc cutting laths, mostly in conjunction with an automatic release trigger; the Varicom. Feb 6, 2009 · When using a diode bridge, bias is required for stepless precision. The circuit fragment uses a 6AL5 in the side chain. Room temperature tube based limiter/compressor schematic? by ChrisA » Fri Jun 05, 2009 3:46 pm I want to build a limiter/compressor for bass guitar using some 12ax type tubes. Jul 1, 2023 · This circuit aims at being a simple but versatile compressor, meant primarily for stompbox use, but suitable for other applications, given the good signal handling capability and the control options. In the following I wanna show you that the simplicity of this wonderful piece of gear is not only limited to the visual design & controls, but also kept up in the Schematic downloads (pre 1970s) are available for radios, tape recorders, record players, PA amplifiers, and more from many service sources. The PC-2A compressor pedal is based on a vintage Teletronix LA-2A studio Leveling Amplifier. This diagram illustrates all the components and connections of the machine, as well as their relative locations. Preview of DBX 566 TUBE COMPRESSOR SM [1st page] Click on the link for free download! View and Download TUBE-TECH CL 1B owner's manual online. I recommend to anyone looking into opto comps -- but I don't have the link Jul 6, 2023 · A variable mu compressor is a compressor that uses a valve or tube for gain reduction. 4 days ago · Hi, I was wondering if any of you know where I can find schematics to build an analog tube compressor? I'm pretty decent at electrical engineering, but I'd really like to have a starting point to work off of. compressor. Lawrence II, founder of the Teletronix Engineering Company in Pasadena, California in the early 1960s. With the help of two transformers it provides a smooth and natural soft knee compression which can travel into land of distortion when driven hard. com. The schematic is based on the 12AU7 Tube Preamplifier Project from DIYaudioprojects. 1960s Farfisa . Legendary Optical Compression At Your Fingertips The WA-2A authentically reproduces the most sought-after vintage analog tube optical compression of all time. A tube-based compressor, the LA-2A features hand-wired components and two simple controls. Jan 20, 2015 · The article details the operation and construction of the above-illustrated broadcast-remote mixer/amp, which includes a limiter. Explore various circuit designs and DIY projects. Tube Compressor - Free download as PDF File (. CL 1B compressor pdf manual download. I have searched the web over and over with no luck. There are hundreds of pages of Tube amp information on my library page. Jan 22, 2023 · Tube compressor/limiter with single pentodeI liked the idea, but wanted to try and simplify it as much as possible, perhaps using a single pentode stage. Dod Diagrams, Schematics and Service Manuals - download for free! Including: dod 201 phase schematic, dod 201 phasor fx pedal schematic, dod 250 overdrive preamp fx pedal schematic, dod 280 compressor fx pedal schematic, dod 280a compressor schematic, dod 440 envelope filter fx pedal schematic, dod 440 envelope schematic, dod 525 compressor limiter fx pedal schematic, dod 525 compressor Description: Schematics for guitar effects utilizing vacuum tubes and solid-state electronics include the DOD R825 Compressor, DOD 908 Digital Delay, MXR Dynacomp Compressor, and the Fuzzface. The model number is WSC515. We created several and we have redrawn some schematics that were already available on the internet for readability or ease of use (these needed an easier-to-read format, corrections or part identifiers). The MU524 is a compressor where the gain variation is provided by varying the mu (gain) of a special tube. I have this schematic and want to know, how correct is this remake of Altec 436C WebVacuum technology is an elementary component in the production of several products. VCAs are also used to provide mixing desk automation, noise gates, 'de-essers' (sibilance reduction), duckers (that automatically reduce background Jan 3, 2024 · I would like advice concerning good sources of schematics for the vacuum tube equipment, especially amplifiers of all types, that I am working on as a retirement hobby/sideline. Not open for further replies. This comprehensive guide will walk you through the various sections and components of the schematic, giving you a detailed understanding of how this iconic piece of equipment works. Learn about many different tubes, tube curves, the Sidechain and timing circuits. It is an adaption of the original UREI 1176 LN to components and parts that are available (mostly) everywhere today. @Ian Your "A tube opto compressor" paper from 2021 is a highly inspiring read. In response to a strong input signal, it will reduce gain up to 30 db auto-matically, rapidly, and quietly, without the introduction of thumps. New SRPP Circuits The schematic will show the compressor, condenser, evaporator, and other related components that make up the refrigeration system. [What's a Toner Transfer Package?] [What's an RTS Printed Circuit Board?] [What's in a board parts kit?] 49 Power cord 50 Pressure switch 51 Regulator nipple 52 Unloading tube assembly (1/4”) 53 Motor fan 54 Unloading elbow 55 Plug Guitar Amp Schematics to assist you with your amp repairs and modifications. Additional circuits and diagrams for various guitar tube amplifiers are available. Though originally shipped with terminal block I/O, many of Figure 1: Schematic drawing of a Stirling-type single-orifice PTR. Hi! I've searched everywhere looking for a compressor schematics to build myself from scratch but couldn't find nothing. LA-2A is a mono in/mono out compressor pedal featuring switchable comp and limit modes, with a simple set The TUBE-TECH CL 1B is an all-tube optical mono compressor. Some audio compressors, use variable mu tubes. The factory installed tubes are selected at API for optimal performance. While I am not a designer at all, (and still find it a difficult mental exercise to calc a plate curve) this looked intriguing. Apr 7, 2015 · Hi there, I'm interested in making a microphone tube preamp that also has a built in limiter/compressor so there's little difference between loud and quiet sounds. G. This luscious sounding vacuum tube pedal is the result of over two years dedicated research and experimentation—a labour of love—and is Effectrode’s BIGGEST selling Experience Deep Tube Sonics Based on a pair of UA's 1960s golden units, the UA 175B and 176 Tube Compressor Collection gives you all the ultra-musical harmonics and colorful saturation of these original units — down to their magical feedback compression circuit — giving you softer compression at lower input levels The 436C Compressor Amplifier is a self-powered, level-controlling amplifier with a versatility which makes it a desirable part of most audio installations. All three devices were built with similar chassis assemblies and can be The original Drawmer 1960 used a tube stage at the front of the compressor, whilst the 1968 MkII utilisies a J-FET (Field Effect Transistor) gain reduction circuit that operates faster than an opto-isolator. Free Diagrams, Schematics and Service Manuals Download FREE diagrams, schematics, service manuals, operating manuals and other useful information for a variety of products. I am designing a tube opto compressor from scratch and I would like some advice from people that already worked with this. I suggest the searching by manufacturer to get to the right part of the page. AG and Baja, thanks! ------------------ at we can find the: Anderton Frequency Booster schematic printed in GP June 1982 Anderton Wah-Antiwah schematic Anderton Tube Sound Fuzz Schematics Schematics Opto-compressor The opto-compressor features a minimum signal path design with twin Class A vacuum tube triodes for gain matching. I am using a 6DJ8 triode tube for the gain and buffer stages, with 200V supply voltage from a transformer. Schematics Here is a list of the schematics that are exclusive to this site. Find a guitar compressor schematic to build your own compressor pedal and enhance your guitar's tone and dynamics. From left to right: a compressor, a heat exchanger (X 1), a regenerator, a heat exchanger (X 2), a tube (often called the pulse tube), a heat exchanger (X 3), a flow resistance (orifice), and a buffer volume. PHOTO-OPTICAL TUBE COMPRESSOR. It’s designed (like a Shure Level-Loc) for Mic-Level-In, Mic-Level-Out, but that could pretty easily be changed for balanced-line operation by omitting the first 12AT7 stage and using a modest step-up transformer (maybe 1:3 or 1 In this episode, we'll DIY our way towards a simple audio compressor circuit, based on my diode VCA. Signal is taken from power tube plates through coupling capacitors then rectified to a negative DC voltage and applied to a preamp pentode suppressor grid. Ibanez Diagrams, Schematics and Service Manuals - download for free! Including: ibanez ad 80 analog delay schematic, ibanez ad100 analogdelay, ibanez afl auto filter schematic, ibanez aw7 autowah schematic, ibanez be10 graphic bass eq schematic, ibanez cd10 delay champ schematic, ibanez cf7 stereo chorusflanger schematic, ibanez cp10 compressor schematic, ibanez cr5 crunchy rhythm schematic View and Download Universal Audio LA-2A manual online. Apr 10, 2017 · Still need to test this, should work though, no? Switchable caps means varying attack/rel times. They are given as a convenient guide that enables you to familiarize yourself with the diferent aspects of using the compressor. Build your own vintage pro audio equipment - DIY recording studio gear. basically, the first tube stage acts as a cathode follower, the second acts as a rectifier (note that plate and grid are shorted), the third acts as a DC The circuit for this stereo compressor is amazingly simple for a compressor this well-sounding. Discover vintage schematics, modern designs, and gain insights into the world of tube amps. Zero-fluff. Newest in the series of Acme Audio Manufacturing’s line of faithful recreations of legendary Motown gear, this single-channel lunchbox preamp has been exactingly reborn using the original 1966 engineering schematics, and features an all-tube signal path, with hand selected tubes that drive a Cinamag output transformer. Sources of information on this page include: Learn about the different schematic symbols used for compressed air systems and how they are represented in diagrams. May 26, 2011 · Here’s the schematic if you want to take a look. Proco Rat Some common pin configurations Rex's Fuzz Sixties-style Fuzz Ibanez Sonic Distortion Ibanez Tube Screamer Tube Driver Anderton Frequency Booster AMZ modified version for single 9v battery Anderton Wah-Antiwah AMZ modified version for single 9v battery Anderton Tube Sound Fuzz Wah-wah Patent from 1967 Guitar FX Books AMZ Amazon Store However, a compressor is a powerful tool for enhancing your tones and squeezing that little extra out of your pickups. Teletronix La2a compressor, Pultec EQP-1a program equalizer, 1176 limiter, Fender Tweed Deluxe 5E3 guitar amplifier, vacuum tube instrument direct box and more. The limiter circuitry also includes selectable pre-emphasis. Includes blank PCBs, schematics, parts list, and other resources and documentation. HOME · ABOUT · PRODUCTS · M97 Apr 22, 2005 · But I'm still interested in the concept of a simple tube compressor that only uses a couple of 12ax7's with an optical isolator are there any similar "non-contentious" schematics available anywhere ? Apr 17, 2011 · Tube Compressor Pedal SchematicThe circuits that have been posted look like they are mainly for recording, can these circuits be used as a pedal (rack mount is OK). Currently we have 27502 Diagrams, Schematics, Datasheets and Service Manuals from 978 manufacturers, totalling 16. All-tube, all transformer, an all-American legend. A VCA (voltage controlled amplifier/ attenuator) is the heart of any compressor or peak limiter circuit, and there are quite a few different approaches. The issue with the pedal is, when the Threshold is at 0 level, it can be used as a Urei 1109 Mic Preamp Schematics Urei 1176 Schematics and Manuals - ALL Versions and Revisions Urei LA-2A Compressor/Limiter Schematics and Manuals Urei LA-3A Schematics and Manual Urei LA-4A Schematics and Manual UTC Transformer Data Sheets Valley Sound Model 400 Schematics Ward-Beck Systems 462, 466, 470, and 472 Schematics and Manuals Pc 2a Tube Compressor Schematic Because these tubes often don't glow in the context of a pedal circuit, some Effectrode PC-2A Compressor: Effectrode, out of Corvallis, Oregon, offers a full. On R. 1960s Watkins Rapier 22 link here 1960s Fender Stratocaster Tony Iommi This amp was modified by John “Dawk” Stillwell, who designed a new circuit for it that included an extra tube and a Drawmer LX20 Expander/Compressor. Sep 23, 2007 · Here's a layout and transfer for the Flatline Comp; Flatline Compressor Parts Layout Flatline Compressor PCB Transfer file Enjoy! Flatline Compressor Schematic from John Hollis' site Dec 29, 2007 · A/DA A/DA - Ampulator [schematic] A/DA - Final Phase [schematic] A/DA - Flanger see: - but on MN3007 Retrofit boards check this warning A/DA - Harmony Synthesizer partial schematics Ace Tone Ace Tone - FM-1 Fuzz Master 1966-1968 schematic by analogguru The limiter compressor circuit operates the audio gain around a fast attacking limiter in conjunction with a gentle AGC. Jan 20, 2024 · I am looking for the schematic for Custom Audio Electronics V-Comp. Thanks Evatco - Supplier of Quality Components for all Vintage Restorations and Repairs The Speaker Factory - When you want something A compressor pedal schematic is a diagram that shows the internal components and circuitry of a compressor pedal. No tubes, but a nice solid-state do-it-yourself project. The chassis is made from extruded aluminum with custom endplates and a custom mounting system for it Jan 21, 2020 · The original 43X used a solid-sate rectifier (with a voltage doubler) but I used a more conventional full-wave supply with a rectifier tube since it suited the look better. View and Download Effectrode PC-2A owner's manual online. The plug in mic pre model number is WSC 516. The schematic calls for 150v plate voltage, i was wondering if it would be possible to use one of those compact nixie tube drivers that This was the last tube compressor made in the Telefunken/IRT gray series. It delivers a very musical and smooth compression, preserving the clarity of the source even at extreme settings, and this is where CL 1B really stands out compared to other compressors. schematic What do you exactly mean by 'vacuum tube compressor'? One that uses tubes as a gain reduction element, or one that uses a tube make up gain stage? If it is the first, you will need to look into vari-mu types. The La2a schematic is an essential resource for anyone looking to understand and work with the legendary Teletronix LA-2A tube compressor. It is well know that tube compression, especially that based on an optical design, is generally considered to be warmer than VCA and FET designs, and it tends to provide a very pleasant Oct 21, 2025 · The Stam Audio SA-23A fuses two faithful replicas of essential classic compressors into one hardware unit. Audio compression and output level are constant for input levels between -12dBu and +24dBu. I don't like those ready-to-go kits where you just place and solder components. . Apr 2, 2025 · Operational Overview The UA 175-B & 176 Tube Compressor Collection includes the two individual UA 175-B and UA 176 plug-ins, as shown below. Does anyone have any Schematics of relatively simple tube compressors and HPFs? Legacy schematic archive listing on schems. Started a discussion at GroupDIY and DIYAudio. It’s a direct sub for the 6CG7 in the original Altec. As is the case with other tube offerings from Heritage Audio, the company has sourced NOS tubes for a lifetime, making sure your investment is safe and sound. The schematic is shown below. A faithful, sonically period-correct reproduction of a LEGENDARY compressor using NOS Tubes and big, fat IRON! Building DIY 1176 Compressor Some tips on building a do-it-yourself clone of the UREI 1176 FET Compressor , Rev. Oct 5, 2023 · The PC-2A tube compressor wraps your guitar signal in velvet, enhancing its tone without stamping a solid-state signature on it. Jan 9, 2025 · I want a tube version of an F Deck circuit or similar but struggling to find anything. Leveling Amplifier. com $27. Learn about tube compressor schematics and how they are used in audio equipment. With a synth module or a simple PA protection circuit this might not matter. The Teletronix LA-2A Studio Compressor puts the sounds of our legendary optical tube limiter at your feet, voiced to precisely match the original hand-wired hardware — with all the inspiring tone and classic feel on tap. pdf) or read online for free. Always excited to see just how they can improve on and expand the functions of a classic, Heritage Audio has decided to produce an optical tube compressor. F The UREI 1176 Peak Limiter is a classic audio compressor designed by Bill Putnam, first built in 1967, making use of FETs and using them as a variable resistor to control the gain reduction in the circuit. After building the valvecaster, I want to figure out how to use all these tubes I have around in my builds, and tube compressors being such a fancy piece of studio gear, I figure it is only logical that we get a solid tube compressor stomp box going! Jun 14, 2019 · The Stam Audio SA-2A+ is a replica of the Teletronix LA-2A optical-based tube compressor. The compressor takes in ambient air and compresses it to a higher pressure, which is then stored in a receiver or tank. Aug 15, 2005 · I usually find the diystompboxes. Tube-Tec MP1A Preamp NTP 179-270 Mic pre and Compressor Amek M-2500 Mic pre stage Calrec UA8000 mic/line input stage Calrec 1061 input channel w/ EQ. Dec 10, 2011 · $24. The 6SN7 output tube was a nice choice as there are so many variations of this tube available. Aug 25, 2009 · I'm interested in trying to modify my newly breadboarded ross comp to include a tube. Equalizers: Neumann PEV Equalizer Ear 825 "Passive" tube eq Sontec 430C EQ Sontec MEP250a Pultec PE1A Equalizer Pultec HLF3 Passive High/Low-cut Filter Pultec MEQ5 EQ Section Amek M-2500 EQ-stage This is the simplest way to make a compressor with tubes or at least I haven't figured out any simpler way than this. I then Apr 13, 2006 · hi i m wanted to start building a tube compressor for my bass guitar , i found a compressor schematic with two ecc83 , but it seems it s too old ,and i confused bout the pin connection in first tube , it seems somebody draw it after the original schematic , can anybody tell me , are pin2 and Building DIY 1176 Compressor Some tips on building a do-it-yourself clone of the UREI 1176 FET Compressor , Rev. Explore the different components and circuitry used in tube compressors and their effects on sound quality. LA-2A music pedal pdf manual download. The new schematic reflects this change. Replica of tube opto-compressor Teletronix LA-2A. Audiophile grade components and silver solder are used throughout the circuit with precision metal-film resistors for low-noise and stability, polyester coupling capacitors for their ability to resolve fine signal detail and ground-plane layout. A lot! Use it as a reference. This will turn the unit into a simple buffer amp. We all kmow the principal: As the grid voltage lowers with respect to the cathode, the grid contours get closer together, so the gain changes. It is a professional-grade unit that brings the warmth and character of vintage gear to the 500 series world. Feb 20, 2014 · Tube compressor with 6AL5 sidechain and remote-cutoff pentode. Feb 18, 2009 · Electro-Harmonix Dual tube magic! Using the same professional-grade techniques as the most revered, vintage, high-end studio compressors, the Black Finger delivers truly professional performance compression. I found this schematic for a tube limiter circuit that is built around a pair of ECC83s, which seems more what I'm after. Like the LA-2A, the PC-2A possesses an all-tube signal path, photo-optical gain attenuator and a beautifully musical, smooth tone. The database is regularly updated with new schematics The UA 175B & 176 Tube Compressor Collection will thicken and warm up harsh vocals, and just like the hardware, the plug-in versions overdrive in a very pleasing way. We have a huge schematics inventory, projects section and forum. BOOKS BRANDS COMPANIES LEGAL PRODUCTS SCHEMATICS TUBES VIP LIGHT Tightly kempt, curated schematics, technicals, details. The tube circuit alters the bias from moment to moment in proportion to the incoming signal, which results in variable gain attenuation. Blink-fast. PC-2A air compressor pdf manual download. xlipwl haqbpnde jydyxt hjnw qphx nnwdzcv iavgexp wgjm boijkt saags lhgbq iwmmv lfhnrhet cgtmu btk