Stereo audio meter (CB8228E)

This indicator or VU meter for stereo amplifiers was found in a 90s Radio Electronics. The integrated circuit used is uncommon today.

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Triangular Signal Generator (CB19523E)
The integrated circuit used in this configuration is uncommon today. The diodes are for general use...
Oscillator (CB6000E)
This oscillator or clock generator generates rectangular signals and frequencies up to 100 kHz....
13 V x 5A power supply (CB16891E)
This power supply with transistor regulation was obtained in a 1995 documentation. The power...