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Vintage Audio (record players, hi-fi etc) Amplifiers, speakers, gramophones and other audio equipment. |
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1st Mar 2006, 12:50 am | #1 |
Heptode
Join Date: Jun 2005
Location: Sunderland, Tyne and Wear, UK.
Posts: 661
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EF86 valve phono preamp.
Hi, has anyone got a circuit diagram for a EF86 Ria phono preamp ? Any advice would be gratefully received .
Last edited by Darren-UK; 18th Jun 2007 at 7:47 pm. Reason: General tidying. |
1st Mar 2006, 8:40 am | #2 |
Nonode
Join Date: Mar 2005
Location: Nuneaton, Warwickshire, UK.
Posts: 2,039
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Re: ef86 valve phono preamp
Hi,
If you're starting from scratch, personally, I wouldnt use an EF86 as I find them a bit noisy compared with an ECC83 design. There are some circuits here:- http://www.bonavolta.ch/hobby/en/audio/audioel.htm Mullard did an EF86 design but I can't find it just now, sorry. Regards Aub |
1st Mar 2006, 9:52 am | #3 |
Octode
Join Date: Aug 2005
Location: Saltburn-East, Cleveland, UK.
Posts: 1,786
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Re: ef86 valve phono preamp
Hi,
Perhaps not ideal but these may be of some use Andrew Last edited by AndiiT; 1st Mar 2006 at 10:03 am. |
1st Mar 2006, 2:12 pm | #4 |
Octode
Join Date: Jan 2003
Location: Guildford, Surrey, UK.
Posts: 1,959
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Re: ef86 valve phono preamp
Hi
Here's a link to the Mullard 2 valve pre-amp on Maurice Woodhead's site. This uses two EF86's and has the required equalisation for a pickup. http://www.vintageradio.me.uk/amplif...lardpreamp.htm Ron |
6th Mar 2006, 8:39 pm | #5 |
Retired Dormant Member
Join Date: Dec 2003
Location: North London, UK.
Posts: 6,168
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Re: ef86 valve phono preamp
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