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And that's a Sansui 1000EA in the background. |
Question is, what to replace that ugly 18 ohm sandbar resistor with once I replace that selenium rectifier with modern diode, random guess is 180 ohms, but what does people who have done these sets think?
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the HV transformer look OK
http://suzaku.live-evil.org/20260406_202205.jpg Except for the wire to the Rect tube broke. It's very brittle http://suzaku.live-evil.org/20260406_202224.jpg that cap down there is shot. |
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Those black caps were probably the best back in the day
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resistance check of where that wire SHOULD go, to ground, checks OK, meaning the main HV coil is good.
For lack of any better idea, I will try a 180 ohm resistor in place of the 18, when I replace the selenium rect with a modern diode. |
No, that's much, much too large. I'd leave the 18. It's there for surge protection.
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I have 20 ohm 10w I will try, it should be ok, with the higher voltage from the SI diode. |
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Most places say to add 100 ohms when you remove a selenium and replace it, anyway, I'm out of large adapt-A-caps T_T, I used 4 in my sansui, need more now.
Oddly enough, the 18 ohm sandbar was OK, still gonna replace it with a 20, and the 680 ohm was bad, REALLY bad, 1.2k ohms bad. |
How many watts is the old 18 ohm
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SAMS says 5w for the 18, and 1w for the 680, though they look to be bigger due to they are old dogbone sand types.
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first cap done.
http://suzaku.live-evil.org/20260408_194417.jpg http://suzaku.live-evil.org/20260408_194444.jpg Waiting for more adapt-A-Caps |
On the front of resistors, not sure yet, but there's prob goanna be a lot bad in the set, a random check of R64, which sams says to be a 150 ohm 1w, power to audio out, (brown, red, brown, silver 120 ohms 1/2 w) tested at 187 ohms. :(
Not sure why a 1/2w was in there, 6L6GTs (25V version) like their power for output, gonna replace it with at least a 1w 120 ohm when I do that cap. |
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