The Jet City RetroValve 12AX7 Amp Vacuum Tube Replacement 3 Pack provides a pin-for-pin all analog replacement for 12AX7 tubes. These vacuum tube replacement devices offer the warm, fat, punchy sound traditionally associated with only glass vacuum tubes. RetroValves are very low noise and have no potential for the microphonics sometimes characteristic of tubes and operate with much less heat and consume less power.
Use RetroValves alongside vacuum tubes, or replace vacuum tubes in any ‘cocktail’ combination. They operate in any 12AX7 socket, in nearly any guitar amplifier.
Jet City RetroValve 12AX7 Amp Vacuum Tube Replacement Varieties
- Blue: Significantly lower gain, effectively ‘cooling off’ the preamp gain
- Amber: Nominally the same gain as a standard 12AX7 and perform as you would expect a 12AX7 would
- Red: Very high gain, allowing the preamp to achieve gain characteristics not possible with standard vacuum tubes