Vh, Ih, VaMax, PaMax, Cgk, Cak, Cga. , , , , , /, , , , , , /, 12BH7 Application Data. Va, Vg1, Ia, Ra, S. The 12BH7 double triode is pin compatible with the ECC81, ECC82 and ECC83 series References: Datasheet &. Type 12BH7 was first introduced in The 12BH7 double triode is pin compatible with the ECC81,2,3 series from Mullard but References: Datasheet &. Type 12BH7 was first introduced in .

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For most circuits this should be well within the tolerances of the design, but you can ask the manufacturer to be sure.

12BH7-A Datasheet

They all sound best with a good deal of current running trough them. On my schematic the hand written voltage looks like maybe Silicon suck at this: Anonymous February 1, at 2: But the 12BH7 is a tough little bastard. Write Your Own Review Only registered users can write reviews. Thus, even though it has a lower u or amplification factorthe gain may be slightly higher depending on the circuit design.


If you don’t want to modify the circuit and are unhappy with your 12AUthis is a good choice.

GE 12BH7 Datasheet

Quick Overview Premium driver tube for Hi-fi tube amps. The 12AU7 family has the widest variety of tonal characteristics which is probably why this tube is rolled so often by audiophiles. And yes, I have blown a few tubes, but they sure can take a beating!

When you do, we hope you will consider our vintage tube offerings at http: It’s not so rare so I’d think someone here has it. Only registered users can write reviews. November 17, You also have the R anode resistors dropping some voltage. Life’s datadheet short to suck: Made in Russia, these premium driver tubes are compatible with any 12BH7 tube.

12BH7 Datasheet(PDF) – General Electric Company

The 12BH7 can lend a wonderful life to the tone that sounds great for jazz or vocals. Vintage vacuum tubes provide the best audio sound!

Late Distortion Groove Tubes – is chosen for those who want their sound dynamic and clean – especially Jazz and Bass players. Well, it wouldn’t be the first time a tube was run outside its design center maximum in a commercial product. Tubes that measured to have higher gain.


12BH7-A Datasheet(PDF) – General Semiconductor

Shared cathode resistor R for both halves of the 12BH7. Started by dalmaproductions The Lab. This may be one reason it is not as popular as it should be.

Double click on above image to view full picture. There are lots of blogs and datasheer about the difference between 12AU7’s so I won’t 12bh77 your time repeating everything. ECC8X stuff is not and not very good sounding either. Did you download it from Waltzing Bear? JavaScript seem to be disabled in your browser. Some seem to take more than others, but you can be sure it’s going to shorten life. Working conditions, from the UA schematics: Early Distortion Groove Tubes – is best for a softer attack, and those who play a lot of rock and blues solos.

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