[time-nuts] Powering up a long inactive 5061A

Pete Lancashire pete at petelancashire.com
Thu Jun 15 14:23:48 EDT 2017

Did' not see the 'variac'

A variable autotransfomer more then likely we burn up something in the
power supply. This applies to pretty much all high equipment
that is more than just TV Repair shop gear or anything designed by HP after
around the mid to late 60's.

If power supply regulation exists, and is anything more then a gas
discharge regulator, don't use a variac.

On Wed, Jun 14, 2017 at 11:02 PM, Hugh Blemings <hugh at blemings.org> wrote:

> Hi,
> I've been assisting with the cataloguing and, where possible, testing of a
> bunch of test equipment from a deceased estate.
> One of the items is a 5061A which best I can tell has not been powered on
> for over a decade.  The High Performance tube has a warranty expiration
> date of 1988.  Serial number is 1936A01567 and has Option 01 and 04 and has
> the digital rather than analogue clock.  Minor but it's missing the bottom
> cover.
> My intuition is to set it to one side until I can become familiar with the
> operating manual and potentially bring power up to it slowly with a Variac
> or similar.
> I'd be curious as to the time-nuts view on whether this degree of caution
> warranted ?
> I suspect the Cs tube is long dead, but maybe I'll be pleasantly surprised
> ?
> Would welcome feedback on sensible/cautious first steps with the unit -
> initial need, if possible, is a "simple" go/no go/does it power on ?
> Cheers/73
> Hugh
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