Sample and hold 3 (CB10108E)

This sample and hold circuit configuration was found in a manual from the 70s. The operational amplifiers used are from that time, uncommon today.

Noise generator (CB8009E)
This circuit generates noise pulses for audio equipment probes. The circuit is from a 90’s 303...
Visible light transmitter (CB7852E)
This modulated light transmitter was found in a 90s Popular Electronics. In place of the lamp with...
Superheteredyne MW Receiver (CB962E)
This circuit, found in a 1958 magazine, is for reference only, since the components are not easy...