culturejam wrote:^^ Bro, we're going to need some specifics! That's awesome stuff you got there. And great PCB layouts!
Thanks for the kind words.
The tremolo at least has a thread with all the relevant build info and schematic @ diystompboxes
http://www.diystompboxes.com/smfforum/index.php?topic=110823.0It's a novelty, a just because I can circuit. It sounds pretty good, and you'll probably never see another screen grid trem aside from a few oddities from the 50's and 60's. The AVR code to go with it is the main point of the post, I'm not a coder, and it probably shows in my code, but it works quite nicely, so no big deal. I have another solid state trem built around the same code with all the features of the tube trem, just waiting for boards, but I know it works.
The submini tube fuzzes are pretty neat. I really wanted a Metasonix F-1 or icunt but, there's no way for me to afford them, so based on the literature, I sorta speculated on how they might work, and it does. quite well. They have some good gritty boost, and drive/fuzz sounds. But by making the plate loading variable, and adding a feedback loop, they really come alive. Everything from raspy wheezy effects to huge intermodulating madness. They also use pentodes.
The octave, was a random post on ax84 by the valve wizard. I think I might be the only other person to actually attempt to build the circuit. It has some neat sounds and a pretty interesting design. I redid the whole thing with 6au6's because I have a ton of them, and redesigned parts of it, and added a preamp to it as well. I came up with some improvements to it that are just waiting for e to build them.
I built the maladroid maybe a year and a half or two years ago. I lent it out to a bunch of people and they all loved it. I'll get around to revisiting it pretty soon, there's 2 more versions of it that I haven't built yet but are ready to try out. The basic 6bn6 circuit I discovered through P Millet, and then saw again in use by Metasonix. It is VERY unusual, and sounds like nothing else. It has a cool sometimes assymetric squishing effect, which is super neat. The maladroid will go from a nice overdrive, to full out crazy fuzz. Sounds amazing on vocals, drums, keys, just about anything.
I've been building tube stuff for a long time, and I really love using pentodes, they have such an interesting character compared to triodes. Add in weird heptodes, pentagrids, and dual control pentodes, and beam tubes, there's a whole slew of stuff just ripe for misusing for audio purposes. Plus, they're always around for CHEAP.