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#1437416 - 12/18/15 08:03 PM Tube Talk
Slabraton Offline
Planeteer


Registered: 12/16/12
Posts: 16028
Loc: California
I imagine we have some players who know a lot about replacement tubes. I have a Electro M8 which is older than I am and the tubes need to be replaced. Having it biased is why I've procrastinated.

But I have been thinking of buying some replacement tubes and I am wondering how other tubes compare to the stock 12AX7. Not necessarily the boutique tubes like SovTec or Groove Tubes, but the 12AU7 OR THE 12AT7 and such.

Any opinions would be welcome.

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#1490095 - 09/01/16 02:30 PM Re: Tube Talk [Re: Slabraton]
Derp Offline
Thingie Wingie
Space Cadet


Registered: 08/27/16
Posts: 7
Loc: Texas
12ax7 Comparison

Another 12AX7 Comparison

These two sites might help you. I used a similar site ages back when I was replacing the 12AX7 in my old Marshall VS-100 and Carvin R600 (both of which I miss). I went with Electro-Harmonix and it was definitely an improvement over the stock tube. Much more aggressive sounding but without being fizzy.
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#1511679 - 12/30/16 11:22 PM Re: Tube Talk [Re: Derp]
Popmann Online   content
Loquacious Planeteer


Registered: 05/23/02
Posts: 29075
Loc: Twangville, TN
No idea what the unit is....but, my fave two modern 12ax7s are the TungSol and the JJ 803S---important to note NOT the 83S, which is the typical JJ people carry.

Sovtek isn't boutique....and is maybe some of the worst 12ax7s ever. So--take a pass. GT has too many lines....the name is meaningless, there ARE some good tubes with the name...

You don't have to bias preamp tubes, so....? Again, not familiar with what the Electro IS....but, you need class AB (push pull) power tubes biased when they're replaced for ideal performance....

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