MOSFET trigger (CB21480E)

This circuit was found in a 1967 Electronic Design. FETs are from the time, so modern equivalents can be used.

| Clique na imagem para ampliar |

Field Strength Meter (CB18160E)
This circuit is from a 2004 documentation serving for signals from 1 MHz to 160 MHz. The antenna is...
Low Pass Filter with Transistors (CB19699E)
This filter of two transistors has the cutoff frequency determined by the formulas next to the...
24 W amplifier TDA1510 (CB19167E)
This Philips commercial circuit is from the 90's documentation. The integrated circuit must be...