Some like 'em and some don't, but I bet everyone has at least a couple — Analog Delay, Digital Delay, Reverb, Chorus, Flanger, Phaser, Tube Overdrive, Transistor Overdrive, Fuzz, Octave Fuzz, Tremolo, Vibrato, Compressor and the list goes on! from what I've understood my pedal would probably be 69-70 model with the trashcan arco caps and red resistors. mine says Crybaby on the bottom and on the front instead of Vox. This wah was dated early 1970 by Stuart Castledine of A really cool guy by the way that really knows his stuff! If anybody needs pix of my old European Crybaby wah i would be happy to make them!

Alternatively, the value can be calculated using pspice accurate simulation, showing the results below: There are several options in the market: The Dunlop Yellow/Red Fasel, TDK, Sabbadius Soul Inductor, Coloursound Inductor, Wipple inductor, SOD inductors, miniature audio transformers and coils from industrial filters.

Based on the specifications of the original pedal developed by VOX in the '60s, the new Wah-Wah offers guitarists the same legendary tone with the addition of AC power capability and a buffered input jack for preserving the unprocessed guitar tone when the pedal is not engaged.

Therefore, the position of the potentiometer does not affect the output level.

Once again the output impedance can be estimated using the hybrid pi model, but in this case the formula is complex and does not give any intuitive idea.

I picked up a king vox wah off of evilbay and heard you can date the wah looking at the numbers on the pot. The numbers on the pot are= 24-5318-3 1347320The pot also says (Centralab) Thanks for your code 134 is centralab's mfgr code. this is right in the era of the king wahs, so i would guess you have a mid to late 73 king wah is electronically identical to the cybaby of same era, but that chrome top sure looks thomas organ made crybabys out of sepulveda cali as well as chicago ill, some with the 'red box' 5103 cube inductor and some with the 'stack of dimes' 'liver brown paintgoo' covered inductor...

@ joegagan I knew you'd be the first one to answer my question I figured the 73 was the date but did not know about the last two numbers.

The frequency response is characterized by a resonant peak which is centered in 750 Hz (pedal in a mid position) and can be swept up and down from 450 Hz to 1.6 KHz.

The selected frequencies are amplified up to 18d B while the surrounding ones are attenuated as the below image shows: The Vox V847 uses a single layer PCB with insertion components.

The Wah-Wah pedal was invented in November 1966 by Lester Kushner and Brad Plunkett at Warwick Electronics, a division of Whirlpool that owned Thomas Organ Company and Vox.