Milkman Pedal Steel Mini Preamp Tube Positions
Moderator: Dave Mudgett
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Milkman Pedal Steel Mini Preamp Tube Positions
Does anyone know the functions of the 4 preamp tubes by position? Looking at the amp from the rear, going from right to left the recommended tubes are: V1 - 12AX7(I know this one, it's the gain stage one), V2 - 12AT7, V3 - 12AX7, and V4 - 12AT7. I know there's a Reverb driver, phase inverter and gain stage 2(?). I'd like to know which is which when replacing tubes as I don't use the reverb on the amp, so tthat tube doesn't need replacing. Thanks!
2016 Williams D12 8 x 8, 2015 Williams D12 8 x 8, 2023 Williams S12 4 x 5, Milkman Amps, 1974 Gibson Byrdland
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Re: Milkman Pedal Steel Mini Preamp Tube Positions
I would guess that its the same as a fender.
V1 (12ax7)is the first two gain stages, one before and one after the tone stack.
V2 (12at7) is the reverb Driver.
V3 (12ax7) is the reverb recovery as well as a third gain stage and then
V4 (12at7) is the Phase inverter.
I hope that helps.
V1 (12ax7)is the first two gain stages, one before and one after the tone stack.
V2 (12at7) is the reverb Driver.
V3 (12ax7) is the reverb recovery as well as a third gain stage and then
V4 (12at7) is the Phase inverter.
I hope that helps.
Last edited by Patrick Fleming on 26 Feb 2025 7:28 pm, edited 1 time in total.
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Re: Milkman Pedal Steel Mini Preamp Tube Positions
Thanks Patrick! That's what I needed.
2016 Williams D12 8 x 8, 2015 Williams D12 8 x 8, 2023 Williams S12 4 x 5, Milkman Amps, 1974 Gibson Byrdland