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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Electronic Thermostat (CB17276E)
This circuit can use NTCs from 200 to 680 ohms, just change P2. For 200 ohms use 330 ohms, for 250...
Temperature control (CB21275E)
This circuit was found in an Electronic Design from the 90's. It makes use of components from the...
50W Inverter (CB21485E)
This circuit for a frequency of 40 kHz was found in an old Electronic Design. There were no...