This amplifier for playback of recordings was found in a 1947 manual. It uses a push-pull output with a tube power supply.
The high sensitivity of this type of SCR recommended in our assemblies allows it to be triggered by low...
The circuit shown is from National Semiconductor's Linear Applications Handbook. It makes use of...
September 2016 - It can be obtained from Mouser Electronics the new integrated circuit µCC21520...