Quothe John Allain, from writings of Mon, Nov 25, 2002 at 05:18:49PM -0500:
> I happened upon one of these beauts through one of those
> 'oh, you collect old computers, come back next week and
> I'll have something' type deals. This is a Tektronix 310A
Congratulations on the nice find! Do you have a variac, or can
you get your hands on a variac, to use in testing the scope by
bringing it up the mains voltage slowly?
> portable tube scope and just too well made to ever scrap,
Yes, only their newer scopes are good canditates for the scrap
heap...
> IMHO. For example it opens up like a car hood to give
> access to the entire centerline of the box, with components
> on both sides of the hinge. The reason Why I opened it is
> that it reliably blows fuses on power-on. All looks perfect,
> no burn marks or damage anywhere, just a little dust.
Once you ascertain that the transformer isn't shorted out, and that
none of the the transformer's secondaries are connected to a short
circuit, use a variac, if you have one, to bring up the voltage
slowly; if not, you try the series light-bulb trick, where you place a
light-bulb of a suitable wattage in series with the plug to the
'scope.
> I probably shouldn't ask before the holidays,
> but it might be worth a try.
Who in their right mind wouldn't be interested in a posting pertaining
to a vintage Tek 'scope at any time of the year? :-)
--
Copyright (C) 2002 R. D. Davis The difference between humans & other animals:
All Rights Reserved an unnatural belief that we're above Nature &
rdd_at_rddavis.org 410-744-4900 her other creatures, using dogma to justify such
http://www.rddavis.org beliefs and to justify much human cruelty.
Received on Mon Nov 25 2002 - 18:29:01 GMT