[Amps] TV-7 D/U calibration around New England?

[Robert Arenella]

My advise would be to box it up & send it to Dan Nelson,
djn at ieee.org  He is a well known TV-7 guru.  I sent my TV-7D/U to him 
several years ago and it's been working fine ever since.  He does 
excellent work.  No connection to him, just a happy customer!

73 de Bob,
N2OAM



On 12/3/2015 8:43 PM, Gary Smwith wrote:
>
> Hi,
>
> A bit OT - My stereo amp wouldn't start. Found it's frying fuses the
> second power is applied. No sign of problems the last time I ran it.
> No odor so probably not a cap but maybe a rectifier leg went bad.
> It's one year old with a 3 year warranty so I don't want to open it
> up. But maybe one of those nelllaid up last spring & never got to test
> or use & gave it a dry run. All seemed OK but testing a KT88/6550,
> instead of getting minimum values like 44, it pinned the meter. Tried
> the other three KT88's and got the same results. Tried a 12AX7a and
> the value was double what it should be but at least it only went up
> half the meter instead of pinning it. Rechecked & all the settings
> were correct.
>
> So I tried three old 60's Mullard KT88 that I know are good and
> instead of the 44 min, they ranged between 115 & the end of the scale
> to 120. OK, so they're weaker than the newer tubes but nowhere near
> spec. and I have no idea how good they are.
>
> Looks like I need to get it calibrated. Can anyone suggest someone
> within driving distance from SE Connecticut that would be good for me
> to contact to get this done? I really don't have that many tubes I'll
> need to check but like today, I would like a working quality tester.
> And for what it's worth, I do have a handful of 40's & 50's radios to
> get working.
>
> Thanks & 73,
>
> Gary
> KA1J
>
>
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