Linear photometer (CB7366E)

This circuit was found in a 1967 Philips publication. Transistors support equivalents and modern equivalents can be used.

Mini Lightning Simulator (CB18128E)
This circuit simulates lightning using a small white lux type fluorescent lamp. The circuit is...
TV Transmitter Power Supply (CB18750E)
This power supply was specifically designed for the CB18749E transmitter, but it is suitable for...
Ramp generator with integrator (CB21845E)
This circuit uses a feedback integrator. We found it in Ferranti's transistor manual from 1974....