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By this, do you mean what should be at the top is now at the center and, possibly, what should be at the bottom is not there at all? Thanks, Barry - N4BUQ

Thank you. I'm new to groups.io so I'll look at getting some pictures posted of the unit. I'll give it a go reseating what I can on the readout board, hopefully it helps!

Both traces will display fine at the moment, just the readout issue

Correct yea, it appears its all there! just in the wrong position shifted down!

Rafael, The solid Al condensers can be replaced with tantalum, surface mount or radial. Go to 16V if you use tantalum as a precaution. Tantalums will have very low ESR. If these are decoupling, the

P.D. There’s something I forgot to mention, perhaps I didn’t make it clear earlier. I’m located in Lima, Peru. Greetings from this part of the world. Rafael

Hello, I’m truly grateful for your willingness to help and for all the suggestions regarding the repair of my TDS. I don’t want to be intrusive or take advantage of your kindness, but there’s

This would be a good choice for C17 from Digikey: https://www.digikey.jp/short/98zq51pp It has high ripple current capacity and very low ESR and ESL for its capacitance and voltage rating. Lifetime is

A moment please...is it a stable or intermittent, moving vertical position? 1/ A photo is worth 1M words , post images to photos, create an album 2/ Tek 7000 circa 1970s..1980s boards are

Rafel, Mouser has the 47mfd in stock in two versions, 647-UCY2C470MPD (12,000 hour 160V) and 647-UHE2A470MPD (7000 hour). Digikey has a 56mfd UHE UHE2A560MPD (7000 hour). The UHEs are 100V. I do not

Good evening, I disassembled the PSU again and checked capacitor C17, which has an ESR of 0.5 ohms—I think it’s fine. Then I tested transistor Q9, and it doesn’t show any unusual readings.

Is the trace also compressed? If so, look at the vertical board. The output IC could be bad or dirty contacts in the socket. Mark

There was an extended discussion including /g/TekScopes/message/132588 that might add usefully to the responses you've received here. Best, George.

I opened the TDS380 up yesterday and didn't find anything obvious with a visual inspection. I powered it up to start checking voltages on the LVPS and it booted normally . . . all voltages were in

Just to clarify, the text is readable and is normal height, they're just at/near the center. Is that correct? Maybe for extra clarity: “They’re *both* at/near center? Raymond

Just to clarify, the text is readable and is normal height, they're just at/near the center. Is that correct? Thanks, Barry - N4BUQ

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,