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Thanks for the info. I have decided that the current-limiting resistor will not really protect the NST secondary in the event of a FWB failure unless I use an absurdly high resistance high wattage HV resistor. I like your fuse idea. I looked on E-Bay and found a 15.5 KV 0.5 amp resistor, but they want $70 for it. I will pay it if I have to but I am looking for another source. Where did you get your fuse?
Steve
I found it at a hamfest 20+ years ago. If it ever does blow, I'll probably just bypass it since the rectifiers have worked reliably for about 20 years now and >7,000 shots. Only a little risk of frying the NST, and I have a spare one. My fuse was from Bussmann, part# HVL 1/2. Mouser carries them ($55)
https://www.mouser.com/datasheet/2/87/cooperbussmann_Bus_Ele_DS_6003_HV_Series-1160361.pdf
A less expensive source ($21.75):
https://www.alans-sales.com/hvl-buss-high-voltage-fuse-12amp-p-8664.html
Bert
Message Thread Quarter shrinker resistors - Steve 7/28/2018, 9:15 am
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