Trigger with PUT (CB24089E)

This circuit was found in the November 1970 Radio Electronics magazine. Its function is to trigger without load bounce.

Analog frequency meter (CB6901E)
This circuit for frequencies of 20 to 2 kHz was obtained in English documentation from 1966. The...
Field Strength Meter (CB24535E)
Indicated for adjustment in transmitters for the 11-meter band, this circuit with analog meter was...
High Input Voltage 5 V Power Supply LM340 CB14262E (CB14262E)
The circuit shown uses the LM340 but applies to other regulators. We found this setting in...