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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That is my highly biased opinion though: Quick Overview Premium driver tube for Hi-fi tube amps.

Early Distortion Groove Tubes – is best for a softer attack, and those who play a lot of rock and blues solos. Did you download it from Waltzing Bear? Please, log in or register.

Average Distortion Groove Tubes – is great for your normal all around tone – for those who want some versatility in their sound. Thus, even though it has a lower u or amplification factorthe gain may be slightly higher depending on the circuit design.


Dave Chandler November 27, at 7: JavaScript seem to be disabled in your browser.

12BH7 double triode

Updates to our vacuum tube stock, audio and guitar kits, DIY parts, and completed designs will appear on this site. You can use it as a poweramp as well: If you need help write me datasheef http: November 07, I looked into a 12BH7 data sheet: Quite often it’s with a lot of current.

I was looking at the input stage. The 12BH7A is rated 3. Current thru each triode: Details Medium-Mu twin triode driver tube with 3.

There is, however, a wider variation in the sound of 12BH7s than 6CG7s, so some tube daatasheet or rolling is in order. November 17, I think either the tube is more rugged than the data sheet says or the voltages are wrong on the schematic. The abuse inflicted on poor 6V6G’s in blackface Fender Deluxes comes to mind Anonymous February 1, at 2: Isn’t the shared cathode resistor r and not r?


12BH7-A Datasheet(PDF) – General Semiconductor

Working conditions, from the UA schematics: Medium-Mu twin triode driver tube with 3. The schematic may very well be correct Newer Post Older Post Home.

Email to a Friend. Vintage vacuum tubes provide the best audio sound!

GE 12BH7 Datasheet

Power dissipated in each triode: Well, it wouldn’t be the first time a tube was run outside its design center maximum in a commercial product.

Life’s too short to suck: I spend a lot of time dtasheet the sweet spot. The 12AU7, 12BH7, and 6CG7 have very similar electrical characteristics and can usually be substituted for each other.