Tone dialer B10148E (CB10148E)

Approved by the FCC, this circuit was found in documentation from the 1980s. The circuit uses an unusual component today.

| Clique na imagem para ampliar |

Transistor Driver MC34071 (CB14482E)
The two circuits are from Motorola's Linear Databook from 1990. The resistors depend on the gain...
XTAL TTL NAND Gate Oscillator (CB13867E)
This traditional oscillator configuration with NAND TTL gates can generate signals up to 20 MHz,...
Two-Band Radio (CB16394E)
This circuit in a receiver that allows the capture of distant stations with short waves. The...