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

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@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 > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/ > mailman/listinfo/time-nuts > and follow the instructions there. >

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@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@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 > > > > _______________________________________________ > > time-nuts mailing list -- time-nuts@febo.com > > To unsubscribe, go to https://www.febo.com/cgi-bin/ > > mailman/listinfo/time-nuts > > and follow the instructions there. > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/ > mailman/listinfo/time-nuts > and follow the instructions there. >

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@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@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 >>> >>> _______________________________________________ >>> time-nuts mailing list -- time-nuts@febo.com >>> To unsubscribe, go to https://www.febo.com/cgi-bin/ >>> mailman/listinfo/time-nuts >>> and follow the instructions there. >>> >> _______________________________________________ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to https://www.febo.com/cgi-bin/ >> mailman/listinfo/time-nuts >> and follow the instructions there. >> > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. >

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@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@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@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 >>>> >>>> _______________________________________________ >>>> time-nuts mailing list -- time-nuts@febo.com >>>> To unsubscribe, go to https://www.febo.com/cgi-bin/ >>>> mailman/listinfo/time-nuts >>>> and follow the instructions there. >>>> >>>> _______________________________________________ >>> time-nuts mailing list -- time-nuts@febo.com >>> To unsubscribe, go to https://www.febo.com/cgi-bin/ >>> mailman/listinfo/time-nuts >>> and follow the instructions there. >>> >>> _______________________________________________ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to https://www.febo.com/cgi-bin/m >> ailman/listinfo/time-nuts >> and follow the instructions there. >> >> > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/m > ailman/listinfo/time-nuts > and follow the instructions there. >

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@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@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@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@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 > >>>> > >>>> _______________________________________________ > >>>> time-nuts mailing list -- time-nuts@febo.com > >>>> To unsubscribe, go to https://www.febo.com/cgi-bin/ > >>>> mailman/listinfo/time-nuts > >>>> and follow the instructions there. > >>>> > >>>> _______________________________________________ > >>> time-nuts mailing list -- time-nuts@febo.com > >>> To unsubscribe, go to https://www.febo.com/cgi-bin/ > >>> mailman/listinfo/time-nuts > >>> and follow the instructions there. > >>> > >>> _______________________________________________ > >> time-nuts mailing list -- time-nuts@febo.com > >> To unsubscribe, go to https://www.febo.com/cgi-bin/m > >> ailman/listinfo/time-nuts > >> and follow the instructions there. > >> > >> > > _______________________________________________ > > time-nuts mailing list -- time-nuts@febo.com > > To unsubscribe, go to https://www.febo.com/cgi-bin/m > > ailman/listinfo/time-nuts > > and follow the instructions there. > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/ > mailman/listinfo/time-nuts > and follow the instructions there. >

Dave, I have a complete 527A with a slightly screwed up case (someone removed the handles and smoothed the edges!) that was working when I last used it about 6 years ago. The crt at the time was good and working. I had planned to put it on ebay but never got around to it. Email me off list if you're interested. On 6/20/2017 5:01 PM, David C. Partridge 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 > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. >

My message to Dan Rea are bouncing, so please forgive the BW: Dan, Hang fire please - I just got this baby hooked up and there's been some creative wire cutting done. The supplies for the CRT have been cut at the trafo. It needs lots of TLC as its not actually working right now - fun ahead. If I can get the basic function working then I'll get back to you about the tube. PS Sympathies for the chemo BTW, Mary (my better half) has been there twice ... Dave