0 to 30 V 1 A protected power supply (CB25233E)

This power supply was found in the September 1989 issue of Radio Electronics magazine. The 2N3055 must be equipped with a heat sink.

| Clique na imagem para ampliar |

1 Hz to 10 MHz TTL Oscillator (CB1471E )
The frequency of this oscillator depends on the capacitors, being able cover the range between 1...
RIAA Preamplifier (CB13877E)
This circuit can be used with record players to recover media for CDs and others. The circuit can...
Tachometer with the LM3900 (CB4030E)
The circuit presented is from the Motorola Linear Databook of 1990. The integrated circuit is a...