If there is a damper diode (not a 1N4007, needs to be a FAST diode!) across
the Emitter/Collector of the BU406 then there should be no problem. If no
diode then I would change it IMMEDIATELY!
You don't really need a LOPT tester unless you run across a bunch on
monitors or have a small pile of XY transformers you want to check...
John :-#)#
At 11:44 AM 5/19/2001 -0700, you wrote:
>I'm working on my NW SW HV PCB and just noticed that the previous owner (an
>op) had replaced the BU406D w/ a BU406 -- thank you very much.
>
>Fortunately, I've got a BU406D that I can toss in there, but I'm wondering
>what harm this caused. In the repair faqs, it indicates that this *may* fry
>the HV trans...
>
>Any thoughts on this?
>
>I don't have a LPOT tester (yet -- I guess I need to break down and buy one,
>right John?).
>
>Thanks
>
>---
>Bret Pehrson
>
