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Dirty-South Blues Harp forum: wail on! >
Tubes combination for harmonica preamp
Tubes combination for harmonica preamp
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Dox
195 posts
Aug 03, 2018
11:51 AM
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Hi
I'm still working on my hobby-on-hobby about harmonica floor rig amplification and I'm working on 2 stage tube preamp.
I'm looking for tubes combinations in 2 stages harmonica preamp, some examples are:
Marble amps
AT AU (second stage, or AY like Mascot)
Honeyboy amps
AU AY
Lonewolf amps
Ax AY
Harpgear amps
Ax AxWC
other options? As side consideration, I'm amazed about harpgear combination, using ax axwc really gainy!!!
Thanks, bye!
Last Edited by Dox on Aug 03, 2018 11:53 AM
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SuperBee
5533 posts
Aug 03, 2018
7:42 PM
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I’m not quite sure what you’re interested in, Dox.
All of my single ended amps have only one preamp tube.
If you count the phase inverter as a preamp tube, then some of my push pull amps have 2
sonny jr has 12 AT7 preamp and 12 AU7 PI. I believe this is the configuration with which they shipped.
bell & Howell filmosound has 6J7 pre and 6SL7 PI
Ampeg Jet 12-B has 2 6SL7, again 1 serves as PI. It’s quite gainy
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