This circuit is from a 1965 Radio Electronics. The triggering transformer generates high voltage pulses. The generated light pulse depends on C1 and C2.
This filter was found in Texas Instruments documentation from the 1980s. The circuit uses a common...
Other series operationals such as the LM258, LM358 and LM2904 can be used on this circuit of the...
This circuit was found in Japanese documentation from the 1960s. It is a commercial circuit with...