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Old 21st December 2010, 04:34 PM   #5441
Salas is online now Salas  Greece
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Merlin, have you got any sketch for df_genious by the way?
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Old 21st December 2010, 04:53 PM   #5442
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Do you want a photo? balanced or unbalanced?
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Old 21st December 2010, 04:56 PM   #5443
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df_genious,
Thats the fun of it. One strip board won't work for another due the the parts selected. It is a really simple circuit so it doesn't take long.
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Old 21st December 2010, 05:04 PM   #5444
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Quote:
Originally Posted by SGregory View Post
df_genious,
Thats the fun of it. One strip board won't work for another due the the parts selected. It is a really simple circuit so it doesn't take long.
df_genious, SGregoy has right, each one is specific for needed gain dependeing your cartridge & njfets stash that you have on hand thanks to Salas
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Old 21st December 2010, 05:12 PM   #5445
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Quote:
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Going well I see, but decouple those long incoming DC twisted pair wires right at the regs input connectors with some 0.1-1uF film cap each, also. I think its good practice. Or you are going to connect the M-Lytics for that?
I will connect the M-Lytics first and see if a film cap makes a difference later.
Ok, I connected everyting and initially both channels were working fine. But after a couple of minutes one channel the leds stoped working. Also DS voltage on Q1 stated to rise. Could you please help? Maybe problem with Q5?
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Old 21st December 2010, 08:04 PM   #5446
Salas is online now Salas  Greece
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90% its a Q5.
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Old 21st December 2010, 09:05 PM   #5447
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Hi vgeorge

Would you please point us your schematic so we can follow this repair... what Q5 are you refering to ?
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Old 22nd December 2010, 12:38 AM   #5448
Salas is online now Salas  Greece
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He is referring to the LEDs feeding CCS JFET.
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Old 22nd December 2010, 02:40 AM   #5449
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Upped the load resistor to 182R tonight. The presentation is getting back to right. Imaging is solid and tonality seems to be more balanced. Starting to notice some of the spookyness returning. Will try 220R in a day or so.

Starting to work on the v1.2R. Is the loop size as critical as the plain V1.2?
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Old 22nd December 2010, 07:56 AM   #5450
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Loop size its easier on the R. Not to make it wide like Red Square Moscow though.
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