Forums - 7581A in a Mini Torii

grinnell Seasoned Member Posts: 112	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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chapsjon

Seasoned Member

Posts: 186

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 Seasoned Member Posts: 112	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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chapsjon

Seasoned Member

Posts: 186

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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LR:Mini Torii+Wright WPP100 phono, CSP2+SE84UFO, Pioneer Exclusive M4, Accuphase E-303,Graham Slee Jazz Club, Technics SL-1200MK3D Grace F-8 & Nagaoka MP-110, Yamaha NS-1000M, KEF Reference 101, Sony SS-5050
BR: SE84C+, ZP1 phono, Decware 945
JVC QL-7 Shure V15

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JohnBiv Verified Member Posts: 13	Re: 7581A in a Mini Torii Reply #4 - 01/13/25 at 02:22:08 Did you ever try the 7581A? I have an itch but I don’t want to ruin anything
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grinnell Seasoned Member Posts: 112	Re: 7581A in a Mini Torii Reply #5 - 01/13/25 at 14:44:32 Have tried it yet, was waiting on more info from more experienced electronic gurus
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CAJames Seasoned Member "I've run every red light on memory lane." Posts: 2583	Re: 7581A in a Mini Torii Reply #6 - 01/13/25 at 15:17:22 I don't have a Mini Torii, but if it is safe to use a 6L6 then it is very safe to use a 7581A. Of course how it sounds is up to you.
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