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#1
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Interesting, that makes sense, thanks!
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#2
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Just ordered my focus potentiometer to replace the one on my set. It's a 1k, 25 watt wirewound control. Surplus Sales of Nebraska had them for only $8. I also replaced the .05@1000v cap and the .035@1000 cap; since I had them on hand. I write down every cap I need to order, over 40 paper caps and 20+ electrolytics. Does anyone know what to replace the paper tubular caps in the chassis listed as 1.6 ohm caps? What are these? I've never seen them in sets before and what should I replace them with? They are like dyed on the sams as C4 and C5.
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#3
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Shown on the schematic as polarized, so I suspect they are large mfd, low voltage electrolytic type? Apparently 1.5 ohms is their impedance at 120 hz. Using the below calculator I came up with 880 mfd to get close to 1.5 ohms. Looking at that Aerovox part number(PRS6/1000) I'm going to guess they're 1000 mfd @ 6v. I'll see if I can find that AV number in an old catalog.
http://www.allaboutcircuits.com/tool...ce-calculator/ |
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#4
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Here's a Radio Master listing for those Aerovox PRS series. Oddly they don't list the complete part numbers. Maybe check and see if the 1000 mfd @ 6v fits the physical dimensions of what's in there.
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