[Test-Equipment] HP-334A

[chearn at widomaker.com]

Those bridge lamps do go bad but are now hard to find.  If you positively
diagnose that as a problem, you will probably need to find a junker unit to
canabalize.  HP is no longer helpful in providing parts for older equipment. 
Cheers, Chase/K4AFW

Quoting DW Holtman <tubestuff at comcast.net>:

> Hello,
> 
> I recently acquired a HP-334A. It works in the Voltmeter mode. In the
> distortion mode, it will not null. The balance knobs or main frequency dial
> has no effect on trying to null the unit.
> 
> Does anybody have any suggestions on where is a good place to start trouble
> shooting?
> 
> Best,
> DW Holtman
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