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Stephen, The gained experience in itself is worth the effort, not much money lost if it doesn't work out. The serial number is nothing special for a Heerenveen (NL) -produced Tek. Non-US serial

I have used Mobil 1 0W-15 on every kind of small motor, including Tektronix fan motors, for decades and not had a problem. I use hydrocarbon formula (flammable) brake cleaner or choke and carburetor

Raymond, I know you knew that, and that it was an honest mistake. I just pointed this out so future people that will be eventually interested in this restoration, won’t get confused, and try to

FYI: http://www.moebius-lubricants.ch They sell all kinds of synthetic oils (and greases). Raymond

Correction: "Very little to lose, a lot to gain". Raymond

I agree that synthetic oils would seem to be a better choice here, but there may be a problem with mixing synthetic and petroleum oils. Will they play well together? I don't know, and I figured that

Of course it is, Stephen. Often, the mainboard is A1 and I didn't look it up. As is so often the case, extra (and wrong) data only contributed to increased confusion. At least, one of us was awake (as

Duly noted Raymond, thank you for the explanation. I will reverse the leads. PS: BTW, it’s the A9 board, not the A1 board.

As I said, my donor board contains a part clearly marked as Motorola MJE2801, date code 7411, with correct connections for the A1 board and therefore, reversed as compared with TIP35. You'd think that

The problem is that the manual, as well as the cross reference document, both mention that these pass elements can by substituted for MJE2801, without mentioning any modifications. And when I looked

The Isoflex PDP65 is also used for capstan motor lubrication on some Revox/Studer tape recorders? (and probably other brands too).? It can be purchased in small quantities from online repair vendors

Jim, these SAE class motor oils are definitely not the right choice for this application! They usually contain cleaning additives and stabilizers which are counterproductive for the function of

Thanks Raymond. I really need to learn to stop speaking in certainty about that which I know little. But I really do enjoy learning, even when it comes at the cost of exposing my own ignorance. I'm

Where are you located? (I presume in the US from the United Package Smashers comment)?

On Tue, Apr 6, 2021 at 02:01 AM, Dave Peterson wrote: > > Raymond, you said that the early (pre SN 250K) 465s definitely do have a > "mesh" in their CRTs, and I don't doubt you. My "expertise" in

No problem at all. I was too lazy to check. I'm just happy it's on Tekwiki, that's the ideal destination for my scans. thanks --Toby

Hi All, I have a Type 162 Waveform Generator that I bought many years ago for parts. I never did anything with it and it's still all together, so being offered to anyone for the postage. Condition:

Thanks very much to both of you! —Cheers, Tom Sent from my iThing, so please forgive typos and brevity.

You had uploaded it, Toby. It's the fourth manual in the 465 SM lineup. ITM, I have OCR'ed it and added it as the fifth SM, in PDF format. I left your doc. in for the moment but am happy to remove it

You are correct, Stephen, they are reversed. My parts donor board contains an MJE2801. Its base and emitter are reversed in comparison with the TIP35. The emitters on the board are closer to the