The round caps in the pic?

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d20
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The round caps in the pic?

Post by d20 » Sat Nov 28, 2009 2:07 am

Do any of you know what disk-shaped caps are pictured in the GPM45 head circuit board layout? If you don't know it, the pic I'm talking about is located here: http://plexireplicas.com/metropoulos-amplifiers/gpm-45-head/ - it's one of the detail pics.
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VelvetGeorge
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Re: The round caps in the pic?

Post by VelvetGeorge » Sat Nov 28, 2009 12:31 pm

Those are old stock large diameter ceramic disk caps I found a few years ago. Unfortunately, I have next to none left. I'm out of 500pf completely.

I've been looking around but haven't found more of these yet. It's a shame too, because these sound really, really good in old Marshal circuits to my ears.

george
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shakti
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Re: The round caps in the pic?

Post by shakti » Sat Nov 28, 2009 12:49 pm

George, how would you compare them to new production silver micas, or new production ceramic caps?

Original Marshalls had silver micas, but perhaps they were made differently back then? I have some NOS RS 270pF ones I am going to try in the tone stack, but need the other values as well (470 or 500 pF, 47 pF).
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Re: The round caps in the pic?

Post by satsloader » Sat Nov 28, 2009 7:48 pm

Hi George,

Do you know who manufactured those caps? I have a few like the ones in the pic, they're RMC's, but if my memory serves correctly I only have 100pf's..

Thanx,

Bill in P.G.

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Flames1950
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Re: The round caps in the pic?

Post by Flames1950 » Sat Nov 28, 2009 9:13 pm

I've found a source on eBay with a lot of RMC stuff that I've snagged, but I never see any 470/500/556pF stuff when I happen to go looking.
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Re: The round caps in the pic?

Post by alwas19 » Fri May 26, 2017 4:24 am

d20 wrote:Do any of you know what disk-shaped best Custom beanie hatsare pictured in the GPM45 head circuit board layout? If you don't know it, the pic I'm talking about is located here: http://plexireplicas.com/metropoulos-am ... m-45-head/ - it's one of the detail pics.
Hello,
The link you given is not workable.
Can you provide a worable link , so i can find a disk shaped caps.

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Re: The round caps in the pic?

Post by VelvetGeorge » Sat Jul 08, 2017 10:55 am

Look for N750 or N1500. These are negative temperature coefficient and very stable. They sound good to me.

george
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