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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What kind of power tubes does your amp use?

JavaScript seem to be disabled in your browser. Newer Post Older Post Home. The operating point is more important than the tube, ime.

UA , or how much power can a 12BH7 stand ??

Shared cathode resistor R for both halves of the 12BH7. Power dissipated in each triode: They all sound best with a good deal of current running trough them.

November 07, What do 12bh77 options mean? Each triode of the preamp tube has matching gain. Started by Brian Roth Drawing Board. My guess is the voltages are wrong. I think either the tube is more rugged than the data sheet says or the voltages are wrong on the schematic. Write Your Own Review Only registered users can write reviews. ECC8X stuff is not and not very good sounding either.


GE 12BH7 Datasheet | EZ

Average Distortion Groove Tubes – is great for your normal all around tone – for those who want some versatility in their sound. When deciding what’s best for you, the following notes may be helpful: I spend a lot of time finding the sweet spot. Vintage vacuum tubes provide the best audio sound!

Some EL34s can take a good wack too. Made in Russia, these premium driver tubes are compatible with any 12BH7 tube. Thus, even though it 12h7 a lower u or amplification factorthe gain may be datasyeet higher depending on the circuit design. Double click on above image to view full picture.

12BH7 double triode

Try to get another copy. In addition, the 6CG7 draws twice as much heater current so be sure that this will work in your circuit. Daniel November 5, at 5: Some seem to take more than others, but you can be sure it’s going to shorten life. Kein 12by7 oder spass. Details Medium-Mu twin triode driver tube with 3.

You must have JavaScript enabled in your browser to utilize the functionality of this website. Started by Fablab The Lab. With respect to audio reproduction there is a fairly large difference between these three tubes.

I looked into a 12BH7 data sheet: The 6SN7 has the reputation of being the most linear of the medium mu triodes and the 6CG7 follows suit.


Current thru each triode: For most circuits this should be well within the tolerances of the design, but you can ask the manufacturer to be sure. The 12BH7 can lend a wonderful life to the tone that sounds great for jazz or vocals. The schematic link at Waltzing Bear is dead, do you have another link? Dunno, I’m only That is my highly biased opinion though: Silicon suck at this: There are lots of blogs and posts about the difference between 12AU7’s so I won’t waste your time repeating everything.

November 17, A lot of people like Amperex, but they work best in a system that is not forward or bright as they add life to the midrange.

The 12AU7 family has the widest variety of tonal characteristics which is probably why this tube is rolled so often by audiophiles. The schematic may very well be correct Late Distortion Groove Tubes – datasheey chosen for those who want their sound dynamic and clean – especially Jazz and Bass players. I was looking at the input stage.

But the 12BH7 is a tough little bastard. It’s not so rare so I’d think someone here has it. Life’s too short to suck: