We found this circuit in the National Semiconductor Linear Applications Handbook of 1994. The components used are not very common today.
For measurements between 30 and 40º C this circuit was found in the documentation of 1968. The...
The circuit is Motorola's 1974 Unijunction Trigger Circuits for Gated Thyristor. A 2N2646 can be...
We found this configuration in the ON Semiconductor thyristor manual. The triacs depend on the...