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B&K 747 tester fault


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#1

Old

07-16-2012, 08:26 AM

Down Under Down Under is offline

Down Under is offline

VideoKarma Member

Join Date: Jul 2012

Location: Melbourne, Australia.

Posts: 145

B&K 747 tester fault

Hi all,

I was recently using my tester when the heater on a tube being tested went cold. Turns out now that NONE of the heaters of any of the valves I test light up. I looked for a wiring fault, but I have a horrible suspicion my tranny is open.

Has anyone seen this and know what it is?

All help appreciated.

Cheers,

Adam

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