Small stereo amplifier (T1545E)

This small amplifier of 1W per channel was found in the 1975 RCA tube manual. The circuit uses direct mains power, without a transformer.

Dual LED Flasher Using the 555 (NI006E)
This is a basic astable circuit using the 555 IC and driving two LEDs. The phase on a rate giving...
Adder with the 741 (CB25794E)
More inputs can be added to this adder that we found in the January 1995 Electronics Now magazine....
Low Output Impedance Preamplifier (CB4911E)
This circuit converts a high impedance signal into low impedance. The circuit has unit gain and...