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I recently acquired a very clean Tek 551 oscilloscope I'd like to restore; but it's missing the separate power supply unit.
Anyone have one for sale or know where I might acquire one or is this in the unobtanium category?

The 551 is a great scope and was in production for quite some time. There is a 551 power supply on ebay that has been listed for quite some time (I have no connection with the seller and know nothing about them.) . The price seems way too high but you might see if you can contact the seller for a "buy it now" at a reasonable price. Be aware that you will still need the interconnecting cable unless you or this seller have one. Maybe someone on this group has an extra. Stan Griffiths says in his book that the interconnecting cable can be built. You will need to acquire the proper end connectors but they should be available.

Bob Krassa AC?JL

Fortunately I have the cable.
Thank you for the lead but an ebay search using various combinations of Tektronix, 551 and power supply failed to bring anything up. Would you have a link to it?


John

Here is a link. The asking price is out off wack.



Jerry
W2JI

....and it appears that the lower fan isolation mount has turned to goo and melted, so the fan is not straight and is probably rubbing against the grille.? ?Or it was dropped, and the fan motor's inertia bend the mount.? Definitely argue for a better price.? Dan

Thanks for the link & the information. I have found another which hopefully is in much better condition. I'll keep this one in mind as a possible backup.

John