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Old 23rd July 2002, 04:42 AM   #31
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Default Glad to hear, who can hear, Same think

Originally posted by JoeBob
gromanswe, what you sudjested is eactly what I'm working on at the moment. A se tube voltage gain stage and a class-a se mosfet current gain stage (almost unity gain). Just waiting for my heatsinks to get back from the shop, but I'm betting it'll be pretty good.
I use my own design, precious again
Solid Ouput Buffer construction

Patent? ? do not give much for that
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Old 23rd July 2002, 12:41 PM   #32
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I actually have a class A, single ended tube preamp with twin outputs. Then I have the tube and solid state power amps as I mentioned before.

I tried it with tube preamp /solid state amp, but the dual amp is far better.
Pedro Oliveira
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Old 23rd July 2002, 02:20 PM   #33
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Default MOSFET power follower

well, thats what I have right now.

A very good tube pre (ECC99 WOT) which has just enough gain and power to drive my SE MOSFET power amp (using 12v/50Ah SLA batteries, 3.25A bias, HEAT and large heatsinks).

sound is well wonderfull... has the midrange of a good tube, but the authority of SS.

I love it!!!

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Old 27th August 2002, 08:50 PM   #34
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Talking ...at the risk of thread-jacking

...has anyone got plans for a really well designed hybrid amp - using the best features of both solid state circuitry and valve technology?

Preferably class A?

I've been interested in this area of amplifier design for a while but there doesn't seem to be much of a following in the DIY world (or maybe I'm looking under the wrong rocks?)

Also has anyone tried using New class-A with valves?

Any feedback on this would be great!
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Old 30th August 2002, 05:33 PM   #35
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I'm running a thread at the moment for a hybrid amp design (shown below), you can find it in eaither SS or valves - I'm currently taking suggestions as improvements to the design. If an improvement proves popular in the thread I'll integrate it into the final design.

This could be a chance for you SS and valve guys to get together and contribute the best of both your technologies?

Any posts are greatfully recieved and the design will be reposted as it is updated.


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...if it ain't broke don't fix it - make it BETTER!
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