All I can find is flangers or chorus pedals that utilized this IC. O was able to harvest a few of them from some laboratory grade test equipment and I was hoping to find a way to use them in a delay so I’m not saddled with using a PT2399. The unit I pulled it out of is actually a 15v rack mount delay module for an EKG machine made by a company called BAK Electronics. I contacted them and they sent me data sheets, schematics and user/tech manuals for the equipment but I’d like to see what kind of other options are out there besides just re-housing their board and swapping the BNC connectors for 1/4” jacks.
The ICs are all socketed on the boards and I’ve tested the rack units and the delay functions work, it’s just that all I’m finding is info on Bucket Brigade stuff. The rack mount unit will do up to 42ms from the main out put and exactly half of that delay time from the second output. So the pot on it just turns down the main delay time then the secondary delay time is cut in half. It sounds pretty cool with a function generator hooked up to it but I want to get weirder with it. The people at BAK Electronics told me that you can increase the delay time with the trim pots on the board so it’s not limited to a max of 42ms. They asked what I was doing with the stuff and I told them making guitar pedals and they thought that was cool and sent me all the schematics and guides for their whole catalog.
I saw on reverb these ICs go for like $130 and I have like 26 of them, I wouldn’t charge anywhere near that price, but obviously people are still using them. So any of you guys and gals know of any layouts that use the SAD1204A?
make them loud enough to melt the sun