Hi,
i want to build a boss TR2 and want to change some parts of the schematic i found. First of all, it should be true bypass, so i cut off (red..) all parts of the boss-bypass.
The second thing is, that there a multiple voltages. I changed everyone to the +4.5V.
Will my changes work? I think so :).
(https://s33.postimg.cc/r3jnvqu7f/boss-tr2-tremolo-schematic.png) (https://postimg.cc/image/r3jnvqu7f/)
Pin1 of Depth of course needs also 4.5V. Will it work with an CA3080?
Looking along the audio path most of your changes look fine; pulling out the flip-flop and the FET switches. I'd leave the input buffer in though, because it looks to me like that next stage has a pretty low input impedance. After all, why else use 10uF caps there? If the impedance was large, 100n would do.
Using a CA3080 isn't going to work without significant changes. I can't say what exactly because I've never seen that thing Boss are using before.
To be honest, if you change the thing to a CA3080 along with your LFO changes too, what you've got isn't really a TR2 in any meaningful sense. You just designed a 3080-based OTA tremolo instead. Which is fine, obviously - you'll fit right in around here ;)