Direct Coupled Amplifier (CB7464E)

This two-transistor amplifier was obtained from a 1977 Radio Handbook. The configuration is valid for modern equivalent transistors.

741 Audio Amplifier with Single Source (CB25289E)
This circuit of a few tens of milliwatts of power requires a single source. We found it in a Radio...
High Power LED Modulator (CB847E)
This circuit is suggested by Texas Instruments in his Optoelectronics Sourcebook. The transistors...
12V Flasher (CB5201E)
This circuit used in signaling for boats, cars or barriers was found in a 1980s documentation. It still...