Sovtek 5751 Vacuum Tube Review

Review – Sovtek 5751

4:40 pm

The Sovtek 5751 is an affordable alternative to the 12AY7 used in original Fender tweed amps and can be subbed for a 12AT7 reverb driver tube. In this application, you will get good gain with a warmer sound than the 12AT7. The even balancing makes them a nice phase inverter and allows you push the front end of the amp a little harder. If you wish to use a 5751 in a 12AX7 position to reduce gain we recommend you use the JAN-Philips 5751 tube.

Special note for 5751 types: The 5751 is not a true 12AX7, but is often used in place of a 12AX7. They only have 70% of the gain of a 12AX7, and are often used to quiet down guitar amps that have too much gain. You can learn more about this on our tone tweak info page.

One Response

  1. Scot
    Scot at |

    Why do you recomend the Jan Phillips over this to reduce gain ?
    I have this tube in V1 of my 5150iii 50 watt sounds good to my ears


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