Groove Tubes 12AT7

12AT7 Preamp Tube

The GT-12WD-7 is often used as a phase shifting tube in some well-known hi-fi and bass amplifiers and provides a wide dynamic range. This tube ensures that the signal can be reproduced clean and linear. In some recent American amplifiers, the GT-12AT7 is also used in the second pre-amplification, whereby the lead channel mostly indeed receives a lower pre-amplification, whereas the volume of the channel can be controlled better and finer. In this case to many people the sound seems a bit more round.

  • Phase shifting tube in US Amps

Further Information

Preamp Tube Yes
Power Amplifier No
Matched No
Number Of Tubes 1

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46 Customer Ratings:
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Total
quality
for reverb driver
ylmzmert, 07.05.2020
using on my prosonic combo as reverb driver, seems solid
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Total
quality
For harmonica
John9619, 09.05.2015
I bought this to reduce the gain in the pre-amp phase of Fender Excelsior, replacing the 12AX7 in position one. Its a good harp amp. The tube is quiet and reliable.
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quality
Microphonics problem
Tilke, 12.12.2018
Good tube but after 2 months became microphonic.
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Total
quality
works, but makes a Squeaky noise
AQ_1, 16.05.2019
Purchased one tube for the preamp section in an amp and it makes a squeaky noise when changing channels (made several comparisons with other tubes - they don't make this noise)
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£22.90
Including VAT; Excluding £8 shipping
Available immediately
Available immediately

This item is in stock and can be dispatched immediately.

Standard Delivery Times

Delivery approx. between Monday, 30.11. and Tuesday, 1.12.

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