741 200 mW Amplifier (CB25291E)

This general-purpose transistor audio amplifier was found in the March 1990 issue of Radio Electronics magazine. The power supply must be dual.

| Clique na imagem para ampliar |

2 Door Announcer (CB4757E)
This two-door doorbell was found in a 1990s US publication. The circuit is still current as...
Medical instrumentation preamplifier (CB7235E)
Suggested by Intersil in documentation from the 90's, this circuit is valid for modern operating...
10 to 80 MHz Oscillator (CB6511E)
We found this circuit in an old RF documentation. The circuit must employ RF transistors and the...