atari punk console guitar pass through

[peterg]

I'm planning on building an atari punk console in a 1590b box to match my other stomp boxes and adding an input jack to run the guitar straight through (maybe with a volume control) to the output jack. The guitar output and the effect output would be wired to the output jack. Will the effect outout try to go to the guitar input? Will this be a problem?

[therecordingart]

You just want to sum the two signals? You want to look at summing amplifiers.



Take a look at GGG's mini mixer. Just build a two channel version of it.

[artifus]

if running at 9v the apc output signal will be close to 9v. passive guitar signal will be approx 1v. guess who wins at your output socket? you wont hear a lot of guitar. you could try some hefty voltage dividing with a pair of resistors and/or a pot on the apc output - or are you planning to switch between guitar playing and apc playing? are you mixing or switching?

Atari Punk console is a popular circuit that utilizes two 555 timer ICs or a single 556 dual timer IC.... an astable square wave oscillator driving a monostable oscillator that creates a single (square) pulse. There are two controls, one for the frequency of the oscillator and one to control the width of the pulse.

if you were to amplify and square off your guitar signal (fuzz it up) you could use that as the oscillator that drives the second 555 in the apc for some odd noises, maybe even mix the first 555 and gtr into the second 555. put a jack in place of the apc pot to plug in an expression pedal? mount a joystick in your enclosure? a simple 386 would do, eg:

http://folkurban.com/Site/PWM-715.html
http://folkurban.com/Site/Uglyface-706.html

[FUZZZZzzzz]

oh wait.. you need something else but still

[timd]

You could always try my NFE Fuzz:

http://www.diystompboxes.com/smfforum/index.php?topic=99110.0