25 V x 100 mA Step-Up Regulator (CB24925E)

With a 10 V input this circuit provides a 25 V output. The circuit is from December 1985 Radio Electronics.

| Clique na imagem para ampliar |

741 RC Oscillator (CB19350E)
This oscillator circuit for sinusoidal audio signals with operational 741 requires a symmetrical power...
Darlington Logic Tester (CB13786E)
Found in a 1974 Radio Shack documentation. This circuit must have a connection to the ground of...
Pole finder (CB5950E)
This sensitive circuit detects the live pole of a power grid or outlet. The circuit makes use of a high...