RF Amplifier (CB6129E)

This RF amplifier step has a dynamic range of 140 dB and can amplify signals from 0.5 to 40 MHz. FET is old, but modern equivalents can be used.

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Lamp Control (CB25902E)This low-current control circuit has a lamp as a load, but can have other types of devices, such as a relay, thus forming a shield. img src="images/stories/bc/262004202025_173220_0001.png"
Lamp Control (CB25902E) This low-current control circuit has a lamp as a load, but can have other...
Voltage to Frequency Converter (CB494)
This circuit, using a unijunction transistor (UJT), converts a voltage applied to the input in a...
Telephone dialing simulator (CB8658E)
Based on the 4017 integrated circuit, this circuit of a European 303 Circuits from the 90s,...