This circuit was obtained from Linear Technology documentation from the 80's. Powered by 5 V it can be used as a shield. The components are from the era.
This circuit uses old components, some of which can still be found easily. The circuit is from an...
The LM121 integrated circuit is no longer common in our market, with more modern equivalent...
This simple super-regenerative receiver has 4 tuning bands given by the coils. L1 has 8 turns of...