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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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In Reply to: RE: I'm always "go big or go home" posted by rage on April 20, 2021 at 07:20:34:
"are you using the 7H choke after your 10H input choke? "Yes.
"How many uF following these chokes?"
A lot! I don't remember exactly, I'd have to look but none of them are in the signal path. I cross at 200Hz before the input stage and I have a UltraPath film cap in place.
The reactance of that UP cap at 200Hz is tiny vs. the "reactance of the last cap in the PS in series with the resistance value of the 300B's cathode resistor" (no cathode bypass cap). So, for all intent and purposes, the signal path is cathode, plate, output transformer primary winding, UP cap and back to the cathode.
Without the UP cap there would be a cathode bypass cap and the signal path would be cathode, plate, OPT primary, last cap of the power supply, cathode bypass cap and back to the cathode.
"What output transformers are you using with your 300B?"
ElectraPrint Partial Silver, Single Secondary.
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
Edits: 04/23/21
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- RE: I'm always "go big or go home" - Tre' 16:35:40 04/23/21 (0)
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