Hoffman Amplifiers Tube Amplifier Forum
Amp Stuff => EZ Board postings => Topic started by: Geezer on June 18, 2005, 05:34:45 am
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Hoffman Amplifiers
> Tube Amp Building - Tweaks - Repairs
> What to Build Next ?
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Hurricane
Junior tube assistant
Posts: 18
(3/23/04 8:10 am)
What to Build Next ?
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I have just completed a 5E3 and am so delighted with the results that I am wondering what to build next. Basically, I love the sound of but would like something a bit louder for gigs.
The 3 amps (all c. 40w) that sound as though they might suit are the 5E7, 5E8 or 5F6a. Could anyone possibly give me a bit of a guide as to the tonal differences ? I know it's a long shot, but there are not too many around to try out!
Thanks.
bluetonene
Junior tube assistant
Posts: 34
(3/23/04 10:31 am)
Re: What to Build Next ?
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If you haven't built a 5F6A, that would be the next build that I would recommend especially if you are into blues. If you put pins 1 and 8 of the power tubes to ground and use a 1k 5 watt resistor across pins 4 and 6 of the power tubes you can use a wide assortment of power tubes.
IE: EL34,EL37,6L6GC,5881,6550 etc. By using a 5R4 rectifier tube you can even use 6V6GT's.
Also I highly recommend a bias pot as biasing is necessary for each change.
I've built several of these and every one is amazed at the tone.
Tom
Hurricane
Junior tube assistant
Posts: 19
(3/23/04 12:48 pm)
Re: What to Build Next ?
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Thanks. That's useful to know, as it seems there's a lot of info about the 5F6a, more than for either of the other two. A Double Deluxe also sounded like an interested idea, but again limited info & difficulties getting hold of a chassis.
bluetonene
Junior tube assistant
Posts: 36
(3/23/04 1:47 pm)
Re: What to Build Next ?
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Yeah, if you go with the 5F6A any number of people here can assist and it's a great layout to expirement with.
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