80 and 40 meters Transmitter (T146E)

This transmitter for the 3.5 and 7 MHz ham radio was found in a 1950s Japan publication. No information was given on the coils and the power supply.

| Haga click en la imagen para ampliar |

Smoke detector (CB10114E)
The integrated circuit used in this detector is uncommon today. We found it in a documentation from the...
Sources for LEDs
May 2017 - Mouser Electronics supplies a wide range of sources for LEDs from Mean Well with inputs for...
Atomic Radiation Detector (CB17163E)
This circuit makes use of an unusual component which is a large surface diode that can be used to...