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December 06, 2022, 10:49:13 AM

Author Topic: Quick schematic question [resolved]  (Read 223 times)

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Offline Neuronal

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Quick schematic question [resolved]
« on: February 01, 2022, 01:50:17 PM »
Hi - I'm upgrading the interstage cap in my 1.1 Paramounts, and the duelund caps I am trying advise to connect the outer foil to the lowest impedance path to ground. Just checking - that means to connect that lead to terminal 7, in other words connected to the 249K resistor to ground. Thanks for confirming - don't want to mess this up!
« Last Edit: February 01, 2022, 03:16:43 PM by Paul Birkeland »
Bob D
Rega P2, Cosecant DAC, Reduction, EFP III, Paramount V1.0 + soft start, Omega CAMs + DeepHemp 8s

Offline Paul Birkeland

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Re: Quick schematic question
« Reply #1 on: February 01, 2022, 03:06:18 PM »
I would connect the outer foil toward the plate of the driver tube rather than the 249K resistor, as the internal impedance of a 5670 is much, much lower than 249K. 
Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man

Offline Neuronal

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Re: Quick schematic question
« Reply #2 on: February 01, 2022, 03:14:03 PM »
thanks - I'm glad I checked!
Bob D
Rega P2, Cosecant DAC, Reduction, EFP III, Paramount V1.0 + soft start, Omega CAMs + DeepHemp 8s

Offline Paul Birkeland

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Re: Quick schematic question
« Reply #3 on: February 01, 2022, 03:16:34 PM »
I mean the signal level there is enormous, so you're not going to notice either way I suspect.  On the other hand, if you put them in with the outer foil toward the output grid and you changed your mind later, then you'd have to do it twice!
Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man