This circuit was obtained from an American documentation of 1967. The circuit provides a 30 mA output current for driving standard Nixie indicator tubes at the time.
This amplifier for sound equipment was found in the Philips Databook of 1990. The circuit can be...
I found this circuit in an English publication from 1989. This configuration can be mounted with...
The circuit shown is from a 1978 Texas Instruments optoelectronics manual. The circuit can use...