Re: 5000 series power supply potentiometers
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What the heck! I looked there!
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Well you have the touch Jeff. eBay likes you better? I'm curious why the scope has the serial number and option windows on the back plate, and the option window isn't marked. Perhaps someone put the P11 tube in later? Might explain the bit of glass found in the scope. Though it looks more like a shard of plate glass. For whatever that's worth. The blue is lovely. Thanks again. Dave On Wednesday, July 28, 2021, 11:26:14 PM PDT, Jeff Dutky <jeff.dutky@...> wrote:
Dave, I see the exact part (Tek P# 311-1120-00, CTS P# 201-YA5531) on eBay for eight bucks (plus $3.68 shipping) which seems a bit steep, but you get two pieces for that price (still a bit steep, maybe). Here is the item () and they do have the "Make an Offer" button enabled, so maybe? The part seems to have a 4 pin footprint. Obviously two of those pins must be common (probably the wiper), so you should be able to fit one of those blue Bourns cermet trim pots in the same place by bending one pin to meet one of the common pads for the old pot. Those can be had ten for $8.24 on eBay (free shipping, from China! ), or you could just buy them from a reputable source. Also, while perusing the 5103 service manual I found the list of options: it looks like you have Option 78: P11 Phosphor, which is "best suited for waveform photography." -- Jeff Dutky |
Dave Peterson