Source for LASER (CB7843E)

This power supply for gas laser (HeNe) was found in a 90’s Popular Electronics. It generates from 1300 to 1500 V using common components.

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48V Hot Swap Controller (CB5239E)
For a negative voltage of -48 V, this circuit from the 2005 Linear Technology manual makes use of an...
5 V with 500 mA Power Supply CIR519 (CIR829E)
This circuit is indicated to power TTL circuits with current drains up to 500 mA. The transistor...
Pulse Encoder (CB4444E)
The number of pulses produced by this circuit depends on the switch pressed. The circuit is from...