Broadband Balanced Mixer MC1556G (CB14563E)

We found this circuit in Motorola's Linear Databook in 1990. The integrated circuit used is no longer common today.

Analog Instrument Amplifier (CB13275E)
The transistors of this circuit found in an old documentation from the 70s can be the BC558. What...
Schmitt Trigger (CB13285E)
This circuit makes a very fast switch when receiving an input signal. The FET can be BF245 and the...
Temperature to Frequency Converter LM35 or LM34 (CB25447E)
We found this circuit in the March 1992 Radio Electronics magazine. The circuit provides 100 Hz...