Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: isaac_teller on March 19, 2022, 03:37:47 am

Title: Unusual tube query
Post by: isaac_teller on March 19, 2022, 03:37:47 am

The 6C10 compactron has 3 triodes each with a 100 amplification factor. Is there a 3 triode compactron with a 20 amplification factor for each triode?

Title: Re: Unusual tube query
Post by: HotBluePlates on March 19, 2022, 04:50:33 am

Quote from: isaac_teller on March 19, 2022, 03:37:47 am

... Is there a 3 triode compactron with a 20 amplification factor for each triode?

Reading between the lines of your request, you want a compactron that is 3 sections of a 12AU7.

    Google "compactron" and the first result is a page with a list of various compactron types (http://www.junkbox.com/electronics/CompactronTubesIndex.shtml).

    12AU7 is often described as a "medium-mu tube"

    Skim the list for types that mention 3 medium-mu triodes.

    Check out Frank's (https://frank.pocnet.net) to get a data sheet of each type you're considering.

    Comparing candidate tubes to a 12AU7 data sheet, it appears the 6AV11 has 3 triodes identical to 12AU7 (https://frank.pocnet.net/sheets/123/6/6AV11.pdf).

Title: Re: Unusual tube query
Post by: isaac_teller on March 19, 2022, 08:56:11 am

Thank you.