Found in a 73 magazine for radio amateurs of the 90s, this circuit provides a 2 kV voltage with 7.5 mA of current for HeNe laser.
Suggested by Texas Instruments in 1968 documentation, this circuit uses components from the era....
I found this circuit in an article in a 2003 publication. The circuit is an example of how to...
This configuration makes use of an LM3900 transconductance operational amplifier. The transistor can...