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CLA pot? check if defective and replace pot? J

Hi, I own a TDS694C which has a similar power supply. Worked fine but after sitting on the shelf for a long time died on the first power up.It produced modulated high pitch sound on standby power,

Hey everyone, I’ve got a Tek 7704a where the readout that SHOULD be at the top and bottom is offset and near the center. Adjusting the vertical separation pot didn’t fix it, it won’t adjust

FS: Tektronix Type 1101 accessory power supply LEMO connectors (4) on front panel. +15VDC -15VDC +5VDC TESTED, Works as it should. Serial # B042132 $150 by PayPal or Zelle Ships from Dallas,

Those work well and I've used them in a couple of Tek scope power supplies. The thing I don't much like about them, at least for this application, is once you solder them in place, then if you ever

Strange, I emailed a reply and it never showed up. On Ebay, search for Tektronix capacitor adapter. Somebody is selling a set for the 465 for $10 or best offer. I don't know the seller but they've

Hi George, I just bought a Tek 2232 with GPIB option. I see that you intentionally installed this option on your 2232 a couple years ago. Maybe for transferring data to a computer? It seems the

[email protected]> wrote: The TVSes should measure open in both directions, until you reach somewhere beyond their threshold voltage. This is 220/250V respectively, which is why they're challenging

Hello everyone, Thank you for your quick responses. I will follow your suggestions as soon as I return from work. I’m afraid I don’t have a curve tracer. Perhaps there’s another way to test

Hello everyone, Thank you for your quick responses. I will follow your suggestions as soon as I return from work. I’m afraid I don’t have a curve tracer. Perhaps there’s another way to test

Hey Rafael, I second Jared's advice; you'll probably want to have another look at the PSU. The standby supply in these scopes is notorious for giving up, leading to dead or hiccuping supply. AFAIK

I turned on my TDS380 yesterday and the CRT flashed some garbage and the front panel LEDs all came on and stayed on but that's it. I'll pull it apart this weekend and start looking for obvious failed

7904 psu service is a nightmare. I had to do a full recap and hated it. Instead of disturbing the custom transformers, I clipped the leads and soldered to them. Still love the 7904 for it's

It looks like the PSU is hiccuping. First up, I'd try unplugging the grey ribbon cable to the CRT board to isolate it from power to check it's not still bad somehow. Have you replaced C17 in the PSU

In particular, the ability to raise the upper half of the later models onto the integrated "kickstand" in order to more easily access the controls and components in the lower half of the 'scope makes

Hi all, I have P6042 current probe that works well but the thumb button has popped off the slide assembly. The probe is still perfectly usable by manually sliding the head open and closed. The thumb

Barry That's very useful - thanks! Menahem

Barry, I read that I should see a link to your full email address. However, I don't see one. I'd like to purchase a cap replacement board. Please email me at jonwoellhaf@.... Thanks! Jon -

For the A6302 probe, you are correct, the AC signal is generated by the coil, while the DC signal is created by the hall-effect sensor. Might be a broken wire inside the probe, or possibly inside the

Excellent! Please send an email to <jonwoellhaf@...>, and we'll work out payment and shipping. And -- duh -- I just noticed the link in your first post in this thread that has a plethora of