VamPower 100 Watt PA Amplifier - The schematics on this page are actually of the VamPower 100 watt PA Head and have been kindly drawn and submitted by Andrew Higgins (many thanks indeed Andrew) . Though they are of the PA Head, the power supply, output stage and splitter are pretty much the same on most of the VamPower amps. It's only the PA front-end pre-amp that differs. __ Designed by John Chambers
Various tube Crossovers - You'll find here few ASCII schematics for Heath and Marantz tube crossovers. They were given in L'Audiophile No 11 old sery July 1979
Versatile FET booster engine. Schematic & perfboard/PCB layouts. - A versatile FET booster engine. __ Contact: holler @ runoffgroove.Com
Vibrato Unit for Guitar - A reasonably simple circuit, with results similar to the Vox AC30 guitar amp __ Designed by G. Forrest Cook
Visual metronome - The Metronome is any device that produces a regulated audible and/or visual pulse, usually used to establish a steady beat, or tempo, measured in beats-per-minute (BPM) for the performance of musical compositions. It is an invaluable practice tool for musicians that goes back hundreds of years
Voltage Controlled Panner - pans audio left and right __ Designed by G. Forrest Cook
Volume Control - This circuit could be used for replacing your manual volume control in a stereo amplifier. In this circuit, push-to-on switch S1 controls the forward (volume increase) operation of both channels while a similar switch S2 controls __ Designed by Aaron Cake
Volume Pedal Conversion - Volume Pedal Conversion for Wah Pedals __ Designed by Guitar Effect RC Keen
Vox AC30 Guitar Amplifier Simulator - This project has been withdrawn at Stephan's request, as he has sold the rights for the AC30 Simulator to a manufacturer. While its removal is obviously a loss for my site, I wish him well. Sorry for any inconvenience. __ Designed by Rod Elliott ESP
Vox AC-30 Top Boost adapted for use as a distortion stompbox - The Vox AC-30 amp is considered by many to be the defining sound of the British Invasion during the 1960s. The Top Boost circuitry provided crisp treble-laden overdrive that perfectly complemented the rich bass content. The English Channel is a JFET-based distortion stompbox that uses the same basic architecture as that classic early '60s amp. __ Contact: holler @ runoffgroove.Com
Wave Multiplier for music synthesizers - The idea for this project came from the fabled middle section of the Serge wave multipliers. At the time I designed this, I had never seen or heard one of these units, nor had I seen its schematic diagrams, but armed with descriptions and suppositions by various people who had seen them, and a couple of photos of CRO traces from the output of the module, I decided to design myself one. __ Designed by Ken Stone
Why do we need Mixer? - Article: The mixing of a number of audio signals is such a common thing to do that one would expect the Net to be riddled with articles on how and why signals are mixed. There are plenty of circuits that show how it can be done, but very little that explains the benefits or drawbacks of any particular scheme. __ Designed by Rod Elliott ESP
WidgyBox-A Guitar Distortion Effects Unit - Plug into to those great guitar sounds with this unit.It's cheap, easy to build and can be run from a 9V battery or pugpack supply.__ SiliconChip
Wien-bridge Theremin - This circuit is a basic theremin with only a pitch control. It uses the "heterodyne" technique, as did Theremin's original instrument. Heterodyning is advantageous in its simplicity, and is made further attractive in this design by eliminating the coils that are usually hard to find (electronic design 10/05) __ Designed by Arthur Harrison
Wireless guitar transmitter - Schematic only
Wurlitzer Jukebox repaired with digital MP3/WAV file player & auduino - This cool old jukebox from Wurlitzer is owned by my dad, its 100% all mecanic brain from 1965 is worn out many years ago,
it is very complicated and time consuming to make it run stable for just a few days before a new problem show up,
So the perfect fix is to skip the mecanics, use all buttons and credit indicator as it is, and make it all digital, __ Designed by Thomas Scherrer OZ2CPU
Yet Another Mobile MP3 Player - This is an earlier player using a conventional PC motherboard, so the power supply I designed is quite compatible. __ Designed by Bob Blick
Zonk Machine & Treble Booster - Thanks to A. Coleman for lending his original Hornby-Skewes Zonk Machine for tracing. This is another of those obscure distortions that were designed in the early years of electronic distortion for guitars. It�s not YAFF (Yet Another Fuzz Face) circuit, and it�s probably more interesting for that. Thanks also to �amscray� for providing the schemo for the Hornby-Skewes Treble Booster, which is purportedly the preferred front end for this __ Designed by R.G. Keen |