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Awhile back, I bought a set of circlip pliers made by Vise-Grip which came with several different sized tips. I think I bought them from Home Depot, but I'm not sure. Here is a link to the Irwin

Funny, last night i needed to remove c-clips from a hp331a to lube the gear shafts. I found the same thing,my pliers were too big. I ended up using 2 picks from a pick and hook set.

I'm looking for a good tool to remove the c-clip from the retention shaft from letter-series plugins. For example

Rolynn, I have removed the side panels and cleaned out some of the dust. In regard to the possible location of a couple of added fuses, in front of the fan, I have a couple of selenium rectifier

Phil et all I found a later change page dealing with the fan wiring ( non trivial change) and have uploaded the change page to the file section. hopefully this matches your unit. The change page is in

The manual that I have is three wires. I’m wondering if one is chassis from the case. Time for an ohm meter and check what the resistances are. Two should have the coil between them. One should be 0

Hi Dave, Yeah, there's a cap involved, for sure... will have to research is... tomorrow! Thanks, Phil

I have never looked at the fans on mine so I cant help with that. But... FYI the 453's sound like tiny jet planes.

Phil Lets see if this makes sense There is a starter capacitor involved . 3 wire for the motor and 1 wire for the starter cap I think the other starter cap wire is common to the motor -DC

Hi all, The fan on my scope was very noisy, so I pulled the back apart and got the fan apart from the shroud, only to find that the wiring is soldered in with no way to get the fan out to work on

Jeff, Thanks for the tips. It's easy to see the back of the CRT socket in the 2215; not so easy to see the CRT side of the socket unless I pull the CRT shield off. Perhaps I should also look at the

Dave, The HV meter I used for the -2KV cathode measurement has a 40KV full range, so very possible I didn't see the -2KV move the needle. I'll have to see which type of preregulator it has. I noticed

On Thu, Mar 29, 2018 at 01:26 pm, Fabio Trevisan wrote: > > 8. Last, but not least, while checking the waveforms at the bases and emitters > of Q2441 and Q2541, the looked rather different (the

The one on ebay could have also been bought at the country store and taken home by anybody from a high school kid to a 7000 series design engineer. Bob.

Hi Jeff, Just a quick note to let you know that I received the 335 back feet and they are "perfect!" in fit and finish.? The included screws and washers are "icing on the cake" and make it even

I was hoping someone could say, "I used one when I was at tek", or "I bought mine at the country store"... I guessed from the dimensions and hardware that it was probably a 585, or similar... the 585

David G emailed me the schematics and they're on Tekwiki now: http://w140.com/tekwiki/wiki/Engineering_Power_Supply

Thanks. I was hoping someone could say, "I used one when I was at tek", or "I bought mine at the country store"... I guessed from the dimensions and hardware that it was probably a 585, or similar...

If you would like to add schematics or other documents to Tekwiki, feel free to contact me by email. Editing the wiki directly isn't necessary. I'm happy to do whatever it takes to get the documents

I actually have the TEK documentation on this unit as I have one on my bench. I did share as much as I could on the wiki, but was not able to upload the schematics. I acquired mine through an ex-TEK