Month: January 2023
TRANSISTORS: Soviet Germanium Transistor Data
Germanium transistors from the former USSR are cheap, generally high quality, available in large quantities and very cheap compared to their European counterparts. They are their own thing and are not direct copies of European transistors – you can find similar transistors, but they are never like-for-like replacements. They nearly always sound different and … Read more
TRANSISTOR / DIODE: Soviet Semiconductor Device Designations
This has been transcribed from the U.S. Joint Publications Research Service No. 569 from 1978. Translations of Eastern European Scientific Affairs. Among other things, it contains a guide to Soviet semiconductors. The publication can be found in this folder. It’s a handy guide to Soviet transistor and diode numbering, as well as their … Read more
ETI: The Fuzztone, a Dan Coggins Design
The Fuzztone is an early design of Dan Coggins before Lovetone or Dinosaural appeared. The first publication in ETI (Electronics Today International magazine) actually had an error on the schematic – it wasn’t critical, as it just changed the frequency response a little, and it lost some level along the way in the filter … Read more
Exar OD-01 Overdrive
These things is getting really expensive especially since it got hyped by JHS and was included as the “XR” mode in their Bonsai pedal. It is basically a YATS/Boss-OD-1 with some value changes here and there and assymetrical soft clipping. Schematic is avaiable HERE.
