MagnaTone? Anyone?

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Colossal
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Re: MagnaTone? Anyone?

Post by Colossal »

TUBEDUDE wrote: Thu Aug 12, 2021 1:49 am At least as a starting point. I wanted to use KT-88's and 2 12" speakers. That quickly became a non-starter. So the compromise is KT-66's and 2 tens. I'm thinking ET-10's at this point as they're so efficient and sound good.
Why did KT-88s get cut out of the scope? Too much cost and/or power? Tone? Just curious. I do plan to revisit a SE format with a KT66. I only ran that amp at big bottle voltages however, not RCA specs (low plate voltage and primary).
TUBEDUDE
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Re: MagnaTone? Anyone?

Post by TUBEDUDE »

Mainly because I have a handful of unmatched Kt66 tubes laying around and all my KT-88's are matched sets.
The 66's should drive the ET-10's well enough.
And the 10" speakers will save size and weight.
I'm stoked to have a stereo amp for my stereo effects. I'm running two amps currently and this will be less cumbersome.
Tube junkie that aspires to become a tri-state bidirectional buss driver.
TUBEDUDE
Posts: 1864
Joined: Thu Jan 04, 2007 5:23 pm
Location: Mastersville

Re: MagnaTone? Anyone?

Post by TUBEDUDE »

So, this long term project took a turn. You know, the second step in a project, i.e.
1 Enthusiasm
2 Disappointment
3 Panic
4 The search for the guilty
5 The punishment of the innocent
6 Awards and honors for non-participants

The power tranny in the power amp chassis has poor regulation, dropping some 100V under load, in the power amp chassis.

Meanwhile, my main stereo system ST-70 was acting up and I found carnage.
Bulged caps under the charred board areas and melted noval sockets.
So to get audio for the T.V. etc., I popped this amp in its place. The sound is awesome, so there it stays, as I build another PA for the guitar amp. This time with KT-88's and a mega power transformer.
Meanwhile work begins on the preamp chassis.
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Tube junkie that aspires to become a tri-state bidirectional buss driver.
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