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In Reply to: RE: Melos Monoblocks posted by hahax@verizon.net on August 06, 2014 at 17:56:51
Here is a MELOS HC 180 Massive tube amp, 75 watt triode stereo, in Grandville Michigan. A place call Way-Back Audio. They want $2,500. Maybe bridge you till you find what you want.
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My memory and I hung around the factory when they were in NJ was that the 75 watt version was single ended and I have problems with single ended even at 75 watts per channel. But thanks for the reference.
"tube amp featuring El509 power tubes."
Apparently, they are triode in name only as the EL509 is a pentode not a triode.
It's screen drive which makes the 519 into a very good triode with very nice triode curves. The Berning Audionics BA150 used the 509 tube in a similar manner.
Yes, the EL509 is probably best known as a "screen drive" pentode. I still think it was the marketing department that came up with the idea of calling it a "triode" amplifier.
The cures are triode curves not pentode curves. It's a triode driver and a good one with nice linear spacing. If you knew the people that used this design such as David Berning and Mark Porzilli, you'd know that they really don't even know marketing.
can be wired to operate in triode.
My VTL MB-450s offer switchable tetrode and triode operation using 6550C outputs. Naturally, power output is reduced when running triode. In the case of the 450s, power drops from 300 watts tetrode @ 8 ohms to about 200 triode.
I find that each mode of operation offers particular sonic advantages and use different settings for different music and moods.
Could be triode wired.
Dave
You may well be correct. I'm not familiar with the amp but knew Way-Back had a Melos amp for sale. I quoted what they posted in their online advertisement. Sorry for the error.
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