20 kHz ring counter (CB6138E)

We found this circuit in an old General Electric documentation. In fact, PUTs are not common components today. The circuit is valid as a reference.

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Stereo Preamplifier (CB6035E)
This circuit with RIAA equalization is from 1985 US documentation. The circuit has a flat response...
Simple 2 to 12 MHz Receiver (CB1451E)
The coil L2 has 64 turns of wire 28 or thinner wire in a 1 cm form coreless and L1 10 turns on L2....
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This circuit consists of a traditional version amplifier with complementary output transistors...