Many thanks to you and Wayne H., Chuck, Dan, & Wayne C. for responding. I
think you are correct about the analog meter I used (small Speery)(had to give
the digital back on retirement). Today I dug out an old Simpson 260 and
rechecked a pair of T32s. Measured 10+V on the foot pins and 9+V from center
to side contact. This was using the 100V scale. Weird thing was using other
scales: 25V scale = 6V, 10V scale = 3V, & 2.5V scale = pegged. Guess I'll have
to get digitally modern. Again, many thanks. I knew the answer would be in
this group. DWH
-------------- Original message --------------
From: Tim Hughes <timhughes@xxxxxxxx>
>
> Don,
> Sounds like you are doing it right, but the voltages you measured on the T32
> and t20 are lower
> than typical (and lower than nominal design levels from schematic). They
> should be more like
> 5-8V. In anycase the t32's/20/45's should be safe for anything out there
> particularly, as current
> available is so low.
>
> One reason you may be measuring low is if you are using an old fashioned
> meter
> that puts a
> significant load on the pins. Most modern DVM's do not, but analog meters do.
> The T45 should read
> the same as a T32, as trigger cct is the same.
>
> Tim Hughes
>
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