Remote Control Transmitter (T180E)

This old remote control valve was found in a Japanese documentation of 1962. The operating range is 27 MHz and the battery power

50 ohm Line Driver LM3900 (CB5056E)
The gain of this amplifier is 10 times and the excursion to the output voltage is 6.0 V (peak to...
Transistor gain meter (CB20522E)
This circuit was found in a publication in the 1950s, mainly applying to germanium transistors of the...
Simple MW Radio 2 (CB4360E)
Originally this circuit is from an English magazine, but I found it in Argentina's Radio Chassis...