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DHT preamp
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Doug Flynn  
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 More options Mar 12 2011, 7:45 pm
Newsgroups: aus.hi-fi
From: "Doug Flynn" <doogs...@bigpond.com>
Date: Sun, 13 Mar 2011 11:45:47 +1100
Local: Sat, Mar 12 2011 7:45 pm
Subject: DHT preamp
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Hi chaps

It's been a bit quiet recently...

I've decided to dust off the old soldering iron and build a new preamp
(linestage only). My 6SN7 linestage is sounding a bit long in the tooth. As
I don't do "sand", the new preamp MUST be tube.

Maybe something like a DHT (directly heated triode) would deliver the goods.
I've got 300B, 2A3, 45, 10Y, 26, PX4, 50 DHTs in my collection. My
experience is that the smaller the DHT, the better the sound. Based on
specs, the 10Y looks good (moderate RP, highish mu). Given its RP, I am
leaning towards a transformer output. Or maybe I could employ a CF (6SN7
maybe) at the output if I didn't want to use an output transformer.

Any thoughts or suggestions?

Cheers. Doug


 
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Trevor Lees  
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 More options Mar 16 2011, 7:30 pm
Newsgroups: aus.hi-fi
From: "Trevor Lees" <tlee3...@bigpond.net.au>
Date: Thu, 17 Mar 2011 10:30:26 +1100
Local: Wed, Mar 16 2011 7:30 pm
Subject: Re: DHT preamp
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Dear Doug,
as the grandfather of the 6SL7 preamp octal preamp which I built with Laurie
Cohen in 1976,and thought fantastic,....you need to build/buy a 6H30 tube
preamp like mine..and I use ecc83 followers,

 cheers Trev 0400307489 noone has done it in yet..!

"Doug Flynn" <doogs...@bigpond.com> wrote in message

news:1tUep.12811$gM3.10462@viwinnwfe01.internal.bigpond.com...


 
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