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Topic: Sarno Black Box Tube switch |
Mitch Adelman
From: Pennsylvania, USA
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Posted 10 Mar 2017 12:00 pm
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My old black box tube which has an Au7 in it has bit the dust yet I want to use it tomorrow. Would I damage it if I put an AT7 or AX7 tube in its place? If I had to choose between the two, which would be better choice? I don't mind a sound that's a little less clean with a bit of distortion compared to the clean AU7. The black box is my buffer in my chain so I want to be able to use it. Maybe Brad can answer. I will order another AU7 asap. Thanks |
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Philip Mitrakos
From: The Beach South East Florida
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Posted 10 Mar 2017 1:27 pm
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12AX7 was stock tube in black box that i had to replace |
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William Kendrick
From: Bedford Heights, Ohio, USA
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Posted 10 Mar 2017 3:48 pm
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I bought this on eBay and replaced the stock tube in my Black Box. NOS RCA 12AX7A Vintage Tube for Steel Guitar Black Box _________________ 1979 Emmons D-10 P/P 8X5, Lawrence L-710 Pickups, Li'l Izzy, Telonics Volume Pedal, Goodrich Super Sustain Matchbox, Lexicon MX200 Dual Reverb Effects Processor, Peavey Vegas 400 Amplifier with BW Speaker. |
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Brad Sarno
From: St. Louis, MO USA
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Posted 10 Mar 2017 4:21 pm Re: Sarno Black Box Tube switch
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Mitch Adelman wrote: |
My old black box tube which has an Au7 in it has bit the dust yet I want to use it tomorrow. Would I damage it if I put an AT7 or AX7 tube in its place? If I had to choose between the two, which would be better choice? I don't mind a sound that's a little less clean with a bit of distortion compared to the clean AU7. The black box is my buffer in my chain so I want to be able to use it. Maybe Brad can answer. I will order another AU7 asap. Thanks |
In that version designed for the 12AU7, the AT7 is the better choice.
B |
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John Limbach
From: Billings, Montana, USA
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Posted 10 Mar 2017 4:24 pm
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You could do either. 12AX7 has more gain than the 12AU7, 12AT7 less. Try it and see what happens. Shouldn't damage anything. I'm sure Brad chose it for a gooood reason though.
Whoops. I see Brad chimed in while I was typing and does't want the extra gain of the AX. I defer to the master of the BB. Not sure what's in mine, but it works great. Thanks, Brad. |
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Mitch Adelman
From: Pennsylvania, USA
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Posted 10 Mar 2017 4:42 pm
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Thanks Brad! I had no idea. |
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