2N4987 and 2N4990 (IP057E)

Unilateral switch (SUS) with 8 V of trigger voltage. This component is used to control SCRs and other applications.

Triggered Flip Flop (CB15634E)
A configuration that can be used to do frequency division, and that uses only a current amplifier, is...
Adapter for testing transistors (CB3905E)
The purpose of this circuit is to enable testing of transistors using a common multimeter. With the...
12 V x 1 A Power Supply (CB24821E)
This is one of the many versions we have of a 12 V power supply with the 7812. We found it in the...