Tuesday, November 3, 2015
Colorsound 3-Knob ToneBender Reissue
I was trolling Google Images the other night looking for schematics and I stumbled across this. I think the only thing this reissue has in common with an original is the enclosure and graphics. It uses a single opamp with soft clipping and a Big Muff-style tone stack. If you use 9mm pots you could probably cram it into a 1590A.
Build this. It works, but volume not even loud. I decided to cut off tonestack. It adds volume and fuzziness to pedal.
ReplyDeleteI built this today and the same problem happened as the friend above. But, I changed both resistors from 2k2 to 33k and voilà: The tone pot works perfectly! Changing the 100k before 4148's to 220k gives me more fuzz and more loudness! Man, I'm in love with this pedal! Well, verified too!
ReplyDeleteI saw in this configuration of tone, using 2.2k and 4.7nF you get a highpass frequent of 15.3KHz and using a 2.2k and 10nF you get a lowpass frequency of 7.2 KHz, and it is a mistake, becaus It will turn down the guitar volume. Using a 33k resistor instead a 2.2k resistor, you can get a lowpass frequency of 482Hz and highpass frequency of 1K. but I Will build my project using a 33K resistor and a 6.8nF instead 4.7nF to get a 708Hz of frequency. I believe it will woks well.
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ReplyDeleteI built the pedal, It is working but I did a some mods:
ReplyDeleteI'm using a 10k linear pot to gain (25k was low gain and low volume and the pedal gain only increases next to full potentiometer);
Invert 470r and 1uF to turn the pedal a full high-pass filter and change a 100k side a diode by 220-330k with a more bright in louder gain;
changing the two 2.2k on tone control by 33k, to get a right frequency cut I'm using 6.8nF in place of 10nF to get more mids ( 709hz instead 482Hz)