This amplifier for playback of recordings was found in a 1947 manual. It uses a push-pull output with a tube power supply.
This circuit was found in Electronics Now magazine and can be applied to any JFET. The circuit has high...
This circuit is from a 1977 National Semiconductor integrated circuits manual. The circuit admits...
This is a commercial radio circuit for 1967 AM. It was found in Japanese documentation. The...