Micro amplifier (CB23672E)

This three-transistor circuit was found in Radio Electronics magazine from May 1969. The circuit is for hearing aids and has earphone listening.

| Clique na imagem para ampliar |

Transistor Crystal Oscillator (CB5115E)
The resonant circuit depends on the crystal frequency that can go up to a few megahertz. The...
ICL7135 Plasma Display Circuit (CB15362E)
This circuit is from the 1983 Intersil Databook. The display is plasma and must be excited by a...
Common Emitter Stage (CB4936E)
This is a typical common emitter amplifier stage configuration. The transistor can be used...