It appears you are intent on going the wrong way about doing this, and any attempt to steer you in the right direction is going to be futile!What does CRT era mean?
Actually, we've ordered 5v zener diodes (15 pieces). Here's the link:
http://www.amazon.com/LM78L05-SOT-8...qid=1443902255&sr=8-8&keywords=5v+zener+diode
Is this good?
Also the FET type we ordered is the MOSFET N-channel metal oxide and its drain-to-source voltage is 2.5 kV. Here's the link. Please tell me if it is sufficient. If so, how exactly do I apply it:
http://www.digikey.com/product-search/en?KeyWords=IXTH02N250-ND&WT.z_header=search_go
Thank you.