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The cable female connector was made by several manufacturers, most I have seen were General Electric. I have never seen one with a grounding contact. You can also search for an older extension cord

Here in the UK (where NEMA connectors of any type aren't really used at all) I've seen Tek scopes that have been retroftted with EP4 power inlets. Coming from a broadcasting background I have plenty

Does anyone know of a source for the cable-end receptacle that mates with the plug shown in this photo https://w140.com/tekwiki/wiki/514#/media/File:Tek514-lineSocket.jpg The inside is metal, and I

Happy New Year to all! Resolve the condition and function of R1375 before you move on. What you describe above sounds suspicious to me. After that, there are some other component to check as well.

Hello, these people might be useful: www.krystaly.cz/en/Products/Crystals No affilation. But I speak a few words of Slovak and are in the region...so if I can help, I will in the frame of my

One thing my engineer buddy did in the lab we used was to look at the “speed of light”. He took a reel of coax we had gotten to run some Ethernet links. This was before twisted pair took over from

Larry, I think this approach makes sense. It will not be the “cheap” way to make this happen, but it will likely produce the best results. As I had already stated, I would be up to helping out

Thanks Tom, yes the difficulty to find these crystals is high, but Jim has one and hopefully I can have it. -- Cheers Attilio

Wow Jim, I am in Italy, if you give me your bank details and the amount I have to pay for the crystal and the shipping costs, I will make you an international bank transfer. Thanks -- Cheers Attilio

Hi Jared, Very nice implementation of this Power Supply Tester. Hat off. By the way around April this year a nice 067-1201-99 was sold for USD 148.95 (BIN and eBay) and its TM5000 counterpart

LOL, I think you mean "wiper", not "viper"!? A viper is a kind of poisonous snake!? Such is the confused but fascinating mess that is the English language.? ?Jim Ford?Sent from my Verizon,

Happy new year guys! C 1374 is a possible culprit. You can always replace it and give it a try. If not, you could solder a couple of leads to the viper and the 50 volt ends of the pot and bring them

If you don't find a used one, they are still available from Tek @ about $35.

My 561 has a bad HV XFMR, will cryo tubes and special audio cables fix that?

R1375 is deep under the HV shield, but that's hardly my issue (I've been operating the scope without an HV shield for weeks). The real problem is that the grid bias pot is snuggled up close to what I

You sure that wasn't a 570 Characteristic Curve Tracer Dude, I'm thinkin' it's seriously -in- cal' .... Bill

Ok, heads up, time to go re-download the files if you already downloaded them. I found one transistor backwards (So test 1 wasn't working right), this has been rectified and the unit is now 100%

Thank you for the project. But, I don't get it? I know there is a TekWiki page for this thing... but, was this ever produced and sold by Tektronix? (It seems like something they might have used in

No, apparently, the nanosecond is out of favor this year (as of about 42 minutes ago) and the arcsecond is in. Go figure. DaveD

Trying to find R1375 & associated components on your earlier pictures, but I think from looking at my 465 that they're just out of frame. Also using my 465 as proxy, it looks like the zener diode and