Metroplex Grid Resistors Spec

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KCMetro
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Metroplex Grid Resistors Spec

Post by KCMetro » Wed Dec 08, 2021 12:40 am

I have cooked resistors on 2nd power tube socket. I’m trying to buy replacement .
I can see it’s 1k 5% wirewound but not sure how many watts. Is it 2 or 5 watts resistors ?

Elad E
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Re: Metroplex Grid Resistors Spec

Post by Elad E » Sat Jul 02, 2022 3:31 am

I'm not familiar with the amp's layout but the price difference should be negligible - why not go 5 watt or even 7 watt if they can fit, size-wise?
Keep in mind your fried 2 watt wire wounds may be the effect and the cause.

btw, I'm guessing you mean Screen-Grid Stopper resistors and not the Grid resistors which aren't subjected to high voltages.

harleytech
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Re: Metroplex Grid Resistors Spec

Post by harleytech » Sat Jul 02, 2022 7:20 am

1K 5 watt will work just fine

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VelvetGeorge
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Re: Metroplex Grid Resistors Spec

Post by VelvetGeorge » Mon Sep 12, 2022 11:08 am

Those Welwyn 1k are actually 7 watts. Surprisingly. I stopped using them because the working voltage ratings are too low.

FWIW I now use 700V rated 2.2K Less screen current results in about 1.5db less overall output, but far better reliability with modern EL34's.

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