Ring Counter with Timing (CB6613E)

This variable timing circuit was found in 1964 General Electric documentation. Circuit uses PUTs that are uncommon components today.

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Photo trigger (CB8281E)
Published by Philips in 1965 documentation, the sensor for this circuit is a common LDR. The...
Impedance Ratio for Some Common Values of Turns Ratios (IP097E )
Turns Ratio Between Windings Impedance Ratios 100:1 10 000:1 99:1 9 801:1 98:1 9 604:1 97:1 9...
High Voltage Status Indicator (CB13061E)
The circuit shown in the figure can be used as an indicator of presence and high voltage in a...