Rocket Altimeter (CB25357E)

Today we have more compact solutions. This is from a Radio Electronics magazine from October 1990. It uses the technology of the time.

| Clique na imagem para ampliar |

Low Voltage 455 kHz IF (CB8413E)
This stage of IF to 455 kHz operates with voltages from 1.5 V. We find it in a 90s Popular...
48 to 190 MHz Receiver (CB18521E)
This VHF receptor was found in a Japanese publication from the 1960s. The original transistors can be...
Power supply with selenium diode (CB23577E)
This small power supply with selenium diode appeared in Radio Electronics in October 1958. The...