Found in a 90s R-E Experimenters Handbook, this circuit amplifies signals from 100 Hz to 3 MHz. The circuit has a gain of approximately 30 dB. Bipolar transistors are general-purpose types.
Found in a 90s nHands On Electronics, this circuit triggers a relay that shuts off the load when...
This circuit uses germanium transistors and has a push-pull output with transformers. The circuit is...
Frequencies up to 50 MHz can be produced by this circuit, depending only on the used XTAL. L and...