New tubes always pep up your amp, and substitutions can give you a whole range of new tones.

These tubes are exact replacements for 12AX7, 7025 and ECC83 and will work in any amp, vintage or current manufacturer including: Fender, Gibson, Marshall, Torres Engineering, Vox, Alamo, Kalamazoo, HiWatt, Orange, Silvertone, Supro, Sound City, Matt, Traynor, Carvin, Silvertone, Bogen, Gretsch, Harmony, Valco, Wards, Airline, Kay, Krank, B-52, Ibanez, Epiphone, Crate, Ampeg, Danelectro, Peavey, Washburn, Sovtek, EH, Matchless, Mesa Boogie, Soldano, Park, Sundown, Rivera, Acoustic, Bogner, Sunn, Top Hat, Kitty Hawk, Laney, Trainwreck, Yamaha, Groove Tubes, MusicMan, Garnet, Selmer, Aims, Standel, Magnatone, Masco, Premier, Univox, Valco, Sho-Bud, Watkins, Tiesco, Dynacord, Johnson - and lots more!

12AX7 replace 7025 (the industrial name). An exact replacement. New Ruby Tubes 7025's in stock. Beautiful tubes

ECC83 is the british name for a 12AX7.

All these tubes are interchangable and all have the same gain structure.

There are different tonal characteristics from each tube.

Interchangable tubes:

Interchangable tubes with different gain levels:
5751 (70%) cool tone
12AY7 cool tone mod too

MATCHED Preamp tube - the <span style="color: rgb(255, 0, 0);">"TONE SECRET"</span>
MATCHED Preamp tube - the "TONE SECRET"

final notes on web page

Dan's Legendary Book "Inside Tube Amps" is now available on Amazon/Kindle

just search for "Inside Tube amps" on Amazon and select "On Kindle" from the drop down box.

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Torres Engineering

1890 Junction Blvd

Roseville CA 95747

this is not a "walk in" shop

I am retired due to illness, sorry

in business 35 years