#46
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I'd like to, but I don't have a ECG catalogue.
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#47
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And IIRC you cant run a list from the digital version.
An ECG or NTE hard copy is needed. I dont think I have one but I will scratch around tomorrow........ 73 Zeno |
#48
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#49
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Quote:
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#50
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Now I need a focus pot. Any idea what to look for in a replacement? Mine says:
37-39627-3 TRW 7919 35MEG 10% |
Audiokarma |
#51
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You need to find one with the well insulated mounting.
If you find say a 20K you can mess with resistors to get it in range. The mounting is the key. 73 Zeno |
#52
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So I don't need one with a plastic shaft? Also, the "35 meg" indicates 350k ohms, correct? I've been looking for a suitable replacement for many hours and it's been very frustrating.
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#53
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Quote:
are almost all plastic cause there is 6KV on them. There are also newer styles. A pix of it would help. When you see "meg" add 6 zeros to it so 35 meg is 35,000,000 ohms or 35 million. 350k add 3 zeros so 350,000 ohms. 35 meg sounds high maybe its 3.5 meg ?? 73 Zeno LFOD ! |
#54
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I may need the schematic. I've been googling like mad trying to figure this out.
Unfortunately I tossed the original control *very* recently. However, I took photos of the nearly identical control in my Electrohome console. The biggest difference in its appearance is how it's adjusted. The Sylvania unit had a short shaft. No value on the Electrohome's control, but the schematic says 17M5. Not sure what that means either. Last edited by Jon A.; 10-28-2016 at 10:17 PM. |
#55
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Found two on eBay that are physically identical to the Sylvania unit.
http://www.ebay.com/itm/221372494259 http://www.ebay.com/itm/391167737957 Last edited by Jon A.; 10-28-2016 at 10:17 PM. |
Audiokarma |
#56
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meter the old one. if its 5 meg you can measure it.
If 35 meg probably not. The 35 meg would have a printed resistor on it as part of a divider. Of course thats if its not wide opened. You can also measure with a HV probe. One end will have apx 7KV DC center 6KV other end probably much less than 5KV. 73 Zeno LFOD |
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