Sensitive Crowbar (CB5887E)

This circuit is from an 80's documentation, firing when the input voltage exceeds 5 V. The SCR can be the TIC106 need not have a heatsink.

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15 V x 1 A Power Supply Using the LM723 (CB862E)
The output voltage is adjusted by the trimpot. The power transistor mist be mounted on a heatsink. The 3.9...
Simple MW Radio (CB4359E)
Originally, this circuit is from an English magazine, but I found it in Argentina's Radio Chassis...
Retriggerable Monostable Using the 4047 (CB136)
The previously mentioned versions of monostable multivibrators in this section are not...