So I traded my Box of Metal to a forum member here (thanks Brian!!) for a Catalinbread Heliotrope. And here are the gut shots with components labeled on a few of the pics.
The sound of this thing is, er, odd. "Delightfully impractical" is what I've come up with.
Looks like the wiring/soldering is okay. The decal on on the face is very fragile, and I managed to mar it a tiny bit while removing the net for the switch. I don't know if it would hold up (cosmetically) while gigging.
Attachments
back lighting to help see the traces through the PCB, and parts values overlay.
yeah i heard the clips for this one. thought they were pretty cool. is it as controllable as it sounds? it doesn't take off on you or anything right?
"You've converted me to Cubic thinking. Where do I sign up for the newsletter? I need to learn more about how I can break free from ONEism Death Math." - Soulsonic
mine was a green single space rackmount unit, got it from GC in about 1996, was like 100 bux on clearance cant find any info on it, not that i need it it caught fire about a year after i got it!
Valoosj wrote:Those small resistors are very neat. Does anybody know where I can buy them in Europe?
Those look like standard 1/8W resistors. You should be able to get them at most any electronics supplier. Years ago Philips Beyschlag used to make very nice small metal film resistors like that. They have since been bought by Vishay (along with most other component manufacturers ).
"You've converted me to Cubic thinking. Where do I sign up for the newsletter? I need to learn more about how I can break free from ONEism Death Math." - Soulsonic
Completed builds: Still a bit of a noob: Germanium Fuzz Face, Colorsound One Knob Fuzz (with 4 knobs and a switch!), a couple Zvex SHO's, LPB2, Atari Punk Console, Bazz Fuss, a Boost/Cut combo pedal, a couple of buffers, Random Number Generator, Pulse Wave Modulator, Woolly Mammoth, Zvex Machine, some oscillators and noisemakers...
Culturejam, could you check the value of the resistor directly below the 741? It isn't labeled in the picture (hiding behind the 22n) and I can't quite figure out the colours, looks kind of like two shades of brown.
Revised schem. Couple of errors fixed, values added. Will double check it tomorrow with a fresh set of eyes. Could an admin delete the previous one? It won't let me edit the post to remove it
1st draft deleted. nice job salocin! looking forward to seeing the final. looks like a surprisingly simple circuit for such a strange sound. i guess it all the magic hinges on that jfet splitting off the circuit?
"You've converted me to Cubic thinking. Where do I sign up for the newsletter? I need to learn more about how I can break free from ONEism Death Math." - Soulsonic
Very new territory for me. Is the second opamp is an oscillator? And is the input being used to bias the jfet? What is going on here? I don't see a conventional ringmod.
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