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Old 11th June 2012, 08:09 PM   #821
Salas is offline Salas  Greece
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Quote:
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I'll try Salas's suggestion first. Replace grid stopper carbon film with metal film.
Just in case it really is coming from the line stage. Better secure that fact first. But a Dale was more transparent anyway.
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Old 11th June 2012, 08:13 PM   #822
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Quote:
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I'll try without
Check for ringing on 10kHz squarewaves if without a stopper. It does work with clean rising edge sans stopper sometimes depending on wiring, pot, etc.
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Old 11th June 2012, 08:25 PM   #823
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Visaton B200 open baffle .
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Old 11th June 2012, 08:31 PM   #824
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So not especially prone to highlight hiss though sensitive enough. If its the source and the gain surfacing it, and because you had been listening with no line gain before, its not a bad idea to check the system with the bootstrap buffer option too before you settle. Just a rewiring, not major.
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Old 11th June 2012, 08:41 PM   #825
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Originally Posted by Salas View Post
Hey! Long time no see Mr. Jaap.
It's been too long
Came back for a taste of your 6V6 pre.
Got one in the oven right now, very basic to begin with.

I noticed the Simplistic HV has a version two, suited for higher voltages.
Must locate the parts to build one. Lots of smoke hanging in the air in that tread
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Old 11th June 2012, 09:08 PM   #826
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Old 11th June 2012, 09:13 PM   #827
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Bas, you built 2 separate power supplies, one for each channel?
Was there any noticable difference than one ps for both channels?
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Old 11th June 2012, 09:48 PM   #828
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I wish you would write the voltage when you post a schematic, and not just B+
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Old 12th June 2012, 05:01 AM   #829
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Bas, you built 2 separate power supplies, one for each channel?
Was there any noticable difference than one ps for both channels?
I never compared. I just used what would fit in the low chassis I had. Since the chokes were 40mA I had to use 2.
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Old 12th June 2012, 06:10 AM   #830
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