[time-nuts] CRT for Tracor 527A

paul swed paulswedb at gmail.com
Tue Jun 20 19:20:41 EDT 2017


A suggestion.
$300 does seem a lot for a gamble.
But if it really gets bad you can buy any scope and plumb it in and get
what you need.
Clearly an OK answer. But a thought none the less.
Regards
Paul
WB8TSL

On Tue, Jun 20, 2017 at 6:06 PM, Clint Jay <cjaysharp at gmail.com> wrote:

> A little extra heater voltage and allowing the tube to 'cook' a while can
> help as can a CRT rejuvenator but the cathode is usually tiny on a mono
> tube and  from experience with television repairs back in the dawn of my
> career, they very rarely last any length of time after rejuvenation before
> emission dies off again.
>
> YMMV, a NOS tube may respond better and if you've gone from nothing to
> something it may be worth taking the gamble, especially if the tube you're
> replacing is badly burned in.
>
> On 20 Jun 2017 11:00 pm, "Brooke Clarke" <brooke at pacific.net> wrote:
>
> > Hi:
> >
> > Yes, there are Cathode "Rejuvenators" that can sometimes give a CRT some
> > more lift.  This is a problem with all test equipment that uses CRTs.
> > There are LCD replacements for the CRT in some HP equipment, like the
> 8566
> > SA.
> >
> > --
> > Have Fun,
> >
> > Brooke Clarke
> > http://www.PRC68.com
> > http://www.end2partygovernment.com/2012Issues.html
> >
> > -------- Original Message --------
> >
> >> Hello to the group.
> >> I was not going to comment on the thread. But realized I should.
> >> A caution on CRTs is that if they have been around a long time they may
> >> have very poor emissions. Even if new. Cathode pollutes over time.
> >> Just saying don't be to surprised if you don't get what you paid for.
> >> Best of luck to you.
> >> Regards
> >> Paul
> >> WB8TSL
> >>
> >> On Tue, Jun 20, 2017 at 5:12 PM, Pete Lancashire <
> pete at petelancashire.com
> >> >
> >> wrote:
> >>
> >> Not rare but uncommon. I gave the one I have away a couple years ago.
> Ask
> >>> on a few of he military/boatanchor lists, I've had pretty good luck.
> >>>
> >>> -pete
> >>>
> >>> On Tue, Jun 20, 2017 at 2:01 PM, David C. Partridge <
> >>> david.partridge at perdrix.co.uk> wrote:
> >>>
> >>> Trying a long shot here, I'm looking for a 1" CRT type 1EP1 (or 1EP11,
> >>>>
> >>> or?)
> >>>
> >>>> for a Tracor 527A Frequency Difference Meter.
> >>>>
> >>>> I did spot some on eBay but the vendor had a rather high opinion of
> >>>> their
> >>>> worth :) at over 300 dollars
> >>>>
> >>>> Anyone got one to spare?
> >>>>
> >>>> Thanks
> >>>> Dave
> >>>>
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