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06/16/21 at 03:12:01 


       


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7581A in a Mini Torii (Read 377 times)
grinnell
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Posts: 92
7581A in a Mini Torii
02/16/21 at 15:24:24
 
Anyone try these?  Should be a sub for the 6L6.
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Mini Torii w/ 1940's Brimar 6v6g st
Ref 3A de Capos
VPI HW-19 mk iv
Chromecast Audio Streamer
MHDT Stockholm v2 DAC
Emotive ERC-4 CDP
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chapsjon
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Posts: 45
Re: 7581A in a Mini Torii
Reply #1 - 02/17/21 at 12:33:45
 
I have no experience with 7581A. I have tried multiple brands of 6v6, preferring Mazda and RCA blackplate. I am currently running 6F6. The ones I have are little less powerful than 6v6, but also seem a little "sweeter" sounding. One reason I tried them to begin with was ST shape, then really enjoyed the sound and they were cheap, so been running them exclusively for about 9-10 months.
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grinnell
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Posts: 92
Re: 7581A in a Mini Torii
Reply #2 - 02/17/21 at 15:17:27
 
LOL  I tried  the 6V6g ST because of the shape  love those coke bottle tubes

I wonder if it would work because of this-(below) I don't know enough about electronics to know if this is an issue

" It takes the typically 6L6GC/7581 30W rating and raises it 5W to 35W plate dissipation"
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Mini Torii w/ 1940's Brimar 6v6g st
Ref 3A de Capos
VPI HW-19 mk iv
Chromecast Audio Streamer
MHDT Stockholm v2 DAC
Emotive ERC-4 CDP
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chapsjon
Verified Member
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Posts: 45
Re: 7581A in a Mini Torii
Reply #3 - 02/18/21 at 12:30:42
 
Yes, I think the Coke bottle shape is cool, I have those for my OA3's too & I think the ST shaped power tube and regulator look cool next to each other. Seem to put off a little more light too, but maybe it's because the 6F6 ST shape reflects the OA3 more than GT shape.

Your logic seems sound on the 7581A. I'd probably wait and see if someone more knowledgeable than me can confirm your reasoning, but it sounds like it might be worth trying.
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