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Valve Itch phono
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Old 17th September 2013, 07:20 PM   #1441
merlin el mago is offline merlin el mago
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I swapped the tubes but the situation doesn't changed....
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Old 17th September 2013, 07:23 PM   #1442
stajo is offline stajo  Sweden
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Valve Itch phono
Then I would first check so pin 3 (kathode) is to ground and measure voltage on pin 1 anode. If all ok then disconnect R5 from V3 pin 3 kathode and measure again.
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Old 17th September 2013, 07:26 PM   #1443
merlin el mago is offline merlin el mago
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Oooooops stajo & Salas diode connected the negative side to V1 pin 3

I'm not justifiying but the strong light that I use caused my big mistake....
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Old 17th September 2013, 07:30 PM   #1444
stajo is offline stajo  Sweden
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Thats a show(current)-stopper

But I checked some pages ago. Didnt you say channel was down also Before you put diodes there?

Last edited by stajo; 17th September 2013 at 07:34 PM.
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Old 17th September 2013, 07:43 PM   #1445
merlin el mago is offline merlin el mago
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Now both channels amplifies the signal, time to connect
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Old 17th September 2013, 07:47 PM   #1446
merlin el mago is offline merlin el mago
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Quote:
Originally Posted by stajo View Post
Thats a show(current)-stopper

But I checked some pages ago. Didnt you say channel was down also Before you put diodes there?
Thanks for support, the story it's a little bit long: this morning I discovered that grounded heaters was not well connected & tonight the reversed diode, I'm an electronic CRACK

Last edited by merlin el mago; 17th September 2013 at 07:49 PM.
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Old 18th September 2013, 02:28 PM   #1447
stajo is offline stajo  Sweden
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So how does it sound Merlin?
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Old 18th September 2013, 02:50 PM   #1448
merlin el mago is offline merlin el mago
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Thanks for your interest but still I don't know, I have a very busy day!!!!!!! I will let you know.

Last edited by merlin el mago; 18th September 2013 at 02:53 PM.
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Old 21st September 2013, 01:10 PM   #1449
merlin el mago is offline merlin el mago
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So how does it sound Merlin?
First I used the same reversed diode but no sound left channel, chenged for a new diode and now both channels sounds OK, but my Denon DL103R needs more gain isn't enough Partrdige 977 1:6 so I have to change for a new MC step-up 1:10 or more....
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Old 21st September 2013, 02:18 PM   #1450
Salas is online now Salas  Greece
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Nice that you repaired it Merlin. Well done. Can you hear the rough supply's hum or buzz at all or the circuit rejects it enough?
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