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gregarious
 Post subject: EF86 Spitfire
PostPosted: Fri May 26, 2006 10:16 pm 
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Location: Sydney OZ
Hi - I'm interested in Spitfire variant with an EF86 in place of a 12AX7. Was wondering whether anyone has built an amp with a like or similar topology?

Thanks in advance.
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Mr. dB
 Post subject:
PostPosted: Sat May 27, 2006 4:57 am 
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IOW, an AC15 without the Vib/Trem channel?
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coco
 Post subject: Re: EF86 Spitfire
PostPosted: Sat May 27, 2006 8:04 am 
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Holy Ghost
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[quote="gregarious"]Spitfire variant with an EF86 in place of a 12AX7. [quote] could be a modified AC-15 as Mr. Db noted. You could take the DC30 channel and use that as the front end V1 topology.

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gregarious
 Post subject:
PostPosted: Mon May 29, 2006 4:46 am 
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Mr. dB wrote:
IOW, an AC15 without the Vib/Trem channel?


Yep, just volume, tone, MV.

I'm thinking of using a ss rectifier and would like to know what the consensus is versus a tube rectifier, any audible/appreciable difference?
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coco
 Post subject:
PostPosted: Mon May 29, 2006 7:04 am 
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Holy Ghost
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SS=Bright & Tight! Little if any compression, but you can try to simulate with a loading reisistor. e.g. a 200 ohm, 5W in series after the rectifiers.

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