2016 HXDA 50 watt blowing 500ma fuses

DixieRocker

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Jul 16, 2018
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I own a 2016 PRS HXDA head that has blown the two 500ma fuses on the main board twice now.

It appears to be random as it happened about 6 months apart.

I am using NOS Mullard D getter EL34's that test in the new range on my B&K 707 tester.

Please Help!!!
 
I own a 2016 PRS HXDA head that has blown the two 500ma fuses on the main board twice now.

It appears to be random as it happened about 6 months apart.

I am using NOS Mullard D getter EL34's that test in the new range on my B&K 707 tester.

Please Help!!!
As there isn't much info about their innards I'd contact PRS and see what Doug says.
BTW, has your B&K 707 ever been refurbished? I only ask because I had a B&K given to me and didn't realize they don't stay accurate forever.
 
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