I binged watched Stargate SG-1 a few weeks ago, and I did see briefly see which I believe to be a RM503, in the intro for an episode in season 3. Beginning of the episode started in Major Carter's Lab

Hello Joe, I use a capacitor checker from Mr. Carlson's Lab, and that works very well. As far as your list of capacitors goes, I have had very good luck with Good-All capacitors! I have checked many o

Hello Joe, First off, I just want to say that's great that you got that 575 up and running! The only thing that I would say is not to rely on your tube tester for testing tubes. Tektronix says it over

#photo-notice

Hello Charles, I do not have a carry handle for your 564, as both of my 561A's, 564, 503,504, 531, 535 and 545A needs handles as well. My 561A's and 564 have it the worst as its down to the metal stri

Hello Chuck, My RM565 does have the aluminum can, but so far, it has been working like a champ so far. I am assuming that this will eventually fail. I do hope that it will hold out. But both of my 561

Hi Jared, very impressive! Almost makes me thinking getting some of the TM500 series! Michael, Jared stated that PCBWay did the boards and I am very impressed with the boards. Has me wondering if I co

Bruce, I have sent you an email. :) Brenda

Hello Bruce, I do have not 1 but 2 Tektronix 3B4 time bases that I would be willing to part with. 1 of them is functional as far as basic use goes. I am not a professional by any means, so I don't ful

I have 3 Heathkit IM-28 VTVMs that I love using, just because they have that cool factor, plus it seems like they are quicker to respond to changes in voltage compared to a DMM. All 3 of mine had to h

Hello Dave, The 3A1 plugins that I have come across ends up not only the 6DJ8 tubes missing, there are 2 8233 tubes that end up missing as well. There are 4 7586 nuvistor tubes in the front end, but s

Hello Grayson, I am interested and I have sent you an email. Been looking for one of these for a long time! Brenda

Hi Steven, I would highly recommend that you change out all electrolytics. My rule of thumb is if one is bad, it will only be a matter of time before more will go bad. I learned that the hard way with

Sorry that I am late to this thread, I had a really busy day! I don't know, I think some of the folks on here are right, that it may have just been an overstock and they decided to use this value. But

Hello Brad, You made my day with that comment about the TV set! Back when I was 12 or 13 years old, my father picked up a Tektronix 545B of the side of the road for me. I think it was kept in a barn a

Hello Brad, None of the tubes seem to have been pulled, other than the 6AX5 and the crystal oven. No broken tips or bases until I started to try to pull them out. But I have added a pic on Imgur of th

Well, I do know that this unit came from Alabama and probably was from a vacant property or was left in a barn. Either way, I have never seen so much corrosion, which may well be from salt as well. As

Hello everyone, I have purchased a Tektronix 181 Time-Mark Generator from the evil eBay site. I thought that this would be in decent shape and boy was I wrong!! There are 7 tubes out of 19 tubes that

Hello everyone! I have actually managed to find a EP53A! It's in very nice condition other than some of the "fingers" are a little black. I was able to take this apart as I wanted to make sure that th

Hello everyone! I hope that everyone is being safe with this virus going around. Now to the topic on hand, I have a Tektronix 515A that I have the bug to attempt to fix, and that is I believe that the

Thanks everyone for your suggestions! I really like Chuck's suggestion and I would see no reason why it won't work. I just have to find one with the right thickness and split it and cut it to size. Ch