To say Craig Anderton's body of work is vast is probably an understatement. But within that body are several DIY classics, and this tremolo is no exception. This is a modified/updated version, specifically in the power section with a +/- 9v charge pump. The vactrol in the original is VTL5C1, but some combination of home rolled LDR/LED combo will probably work (you'll just have to experiment a bit). Schematic
here. It'll be snug, but it should fit in a 1590B.
Nice project. Thank you! Just realized this uses 3 inverters form the 4049 and Anterton's Tube Sound Fuzz uses 2. Maybe a fuzz tremolo...
ReplyDeleteIt's a cool idea, but I would try it on breadboard first. Since the 4049 in the trem is being used as the LFO, there might be some LFO leak into the remaining 2 inverters. YMMV
DeleteDavid, There is wrong pins with 4049 Ube. Absolut no the same with that schem...1,2,3,4,5 legs go wrong, 1 have to go 9!I see we can change places 5,4 & 3,2 but 1 have to go 9
ReplyDeleteverified, just connect 1 to 9 lug ube!
ReplyDeleteLayout corrected. Thanks Zzoyd!
DeleteThanks, David, its realy good optical tremolo!
ReplyDeleteVERIFIED!
ReplyDelete