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| bitseeker:
:o |
| innkeeper:
Been so long since I posted my acquisitions, I'll have to trickle them out as I use them. The current one I am cleaning up ... Tektronix 576 Curve Tracer :) if anyone has tricks for removing that blob of aged epoxy off the aluminum, let me know |
| shakalnokturn:
Philips PM 3214 Hameg HM 203-6 Beckman industrial 9016 The lot for 50€, they all need repair and cleaning. The PM 3214 has had a quick power-on so far, not looking too bad overall, but after a 5 min warm the traces loose intensity, the H.V. sags (trace length diminishes) this gets worse by turning the graticule illumination up. I was hoping for a bad C203, that seems OK in circuit, the pottings looks atrocious, so now I'm starting to dread a leaky transformer or H.V. multiplier. Will have to make some measurements. |
| GregDunn:
--- Quote from: innkeeper on April 19, 2019, 12:12:01 am ---Been so long since I posted my acquisitions, I'll have to trickle them out as I use them. The current one I am cleaning up ... Tektronix 576 Curve Tracer :) if anyone has tricks for removing that blob of aged epoxy off the aluminum, let me know --- End quote --- Many kinds of epoxy will literally crumble to pieces when subjected to soldering iron temperature. I had a circuit board on which someone had dropped an ugly blob of epoxy - which incidentally was covering up a couple of components. I used a normal sized soldering gun with a thin spade tip and gently scraped it away. At a high enough temperature the epoxy just fell apart; by being gentle, I was able to remove nearly all of it without damaging the board or components. Yours being aluminum, it ought to be possible to get all the blob off pretty readily; I had to be careful with the glass-fiber board itself. |
| 0culus:
Tek 7904A with a 7A26, 7A19, 7B15 (hey might as well start getting stuff for a 7104 >:D ) and a 7B92A. I've got a few more plugins coming. |
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