This sensitive two-transistor circuit was found in the June 1965 Radio Electronics magazine. The circuit has low drift and uses an analog instrument. The input resistance is high.
We found this circuit in the 1974 Ferranti transistor manual. The transistors are general purpose, and...
The RC network of this circuit determines the operating frequency. The emitter-coupled circuit was found...
This circuit can be used as a receiver for the CIR10534 transmitter or others described in this...