Visual dial indicator (CB9300E)

This circuit was obtained in a Popular Electronics of the 90s. The circuit can be assembled with equivalent components.

| Clique na imagem para ampliar |

RCA 8BBT 8 MW receiver (CB18443E)
This commercial transistor radio was manufactured by RCA in the 1960s. The circuit has only 4...
Astable with semi-latching 4011 (CB24862E)
This circuit has a normally low output that is triggered by a high pulse. The circuit is from...
VLF receiver (CB8202E)
Suggested by a 90s Popular Electronics this circuit is intended to receive volleys or whistles...