32 NOS RCA 1644 (12L6-GT) Twin Pentode tubes

[karma]

i got these tubes cheap on e-bay. anyone ever maid a amp with em?

what would you use em for😉

 

[Frank Berry]

The RCA 1644 tube is a 12L8. Not a 12L6. The two sections share a common cathode.
They were probably designed to be used in the output stage of radio receivers.

 

[karma]

thanks frank ill just add em to the rest of em. maybe down the road i can use em.

only cost me $11😉

 

[Colt45]

yeah, it's a 12L8.

shared cathode and screen, so ideal for PP.


but, unfortunately it is rated only 2,5w Pa, each section.. so flea power, unless you use your whole set in PPP 😉

 

[karma]

where can i find a pdf of the pinout of this tube?

thanks.........😉

 

[rdf]

where can i find a pdf of the pinout of this tube?

thanks.........😉

Not a .pdf, but some info:

http://hereford.ampr.org/cgi-bin/tube?tube=1644

 

[fdegrove]

Hi,

........The datasheet for the 12L8 in PDF format.

DUNCAN AMPS

Cheers,😉

 

[karma]

ahh thanks heh only 180 max volts on the plate hmm.

wonder if i could make a headphone amp with a few

nah not now i still gota finished my other tube amp first😀



thanks.........

 

[Shoog]

Hi all,
Just searched up this thread.
I have been toying with the idea of building a two stage direct coupled 6080 amp for ages now. The idea is to hang the pentode driver off the finals and direct couple a LTP into a differential PP output.
I have been searching for a suitable driver which would allow me to build this as a two valve per channel design. I was toying with compactrons, but they are a pain because they never caught on in Europe and so the bases and valves are hard to come by. So I was almost going to give up when I did a painstaking search of the valve lists and came up with the 12L8-GT. Seems that this is almost perfect for the job and the curves don't look to bad.

So my question is, has anyone ever used them for anything, and if so how do they sound. Also has anyone got a source for them in Europe?

Shoog