We found this transistor circuit in a 1967 General Electric documentation. The circuit makes use of components that can still be easily found on the market, and the SCR may be a 106 type.
Luminus SST 20 Deep Red LED Mouser Electronics is announcing in its stock the SST-20, a 60%...
This 4093 IC continuity tester was found in the November 1986 Radio Electronics magazine. The...
This receiver circuit was found in a Hands On Electronics from the 90s. The circuit uses a PLL...