Recording Head Amplifier (CB26167E)

This circuit was found in the 1992 Radio Electronics Handbook. It is used to test VCR recording heads. It can also be used for other purposes.

| Clique na imagem para ampliar |

Ring Counter using PUT (CB5205E)
This circuit was found in old documentation. PUTs are uncommon components today. The circuit...
Intercom LM388 (CB10936E)
This circuit was obtained in a 1991 Electronics Handbook. The publication no longer exists, but...
20 MHz Oscillator (CB17506E)
This crystal oscillator generates a 20 MHz signal. Equivalent transistors such as BF494 and 2N2222...