EL862

[matejsirk]

Dear,

I can't find any data for this tube. Can anyone help me?

 

[Lingwendil]

If I'm not mistaken it's a D3a "equivalent.

 

[56085]

The data on this site also points in the direction of the EL862 being equivalent to the D3a:

EL862

 

[smoking-amp]

Here is the $3 D3a near equivalent. (maybe upgrade actually)
9KC6 with +24V on grid3. Curves: 50V/div Horiz., 10 mA/div Vert., 0.15V grid 1 steps, at +150V on g2. (note the lower "knee" voltage here too.)
The gm around 36000 at 20 mA. (by changing Vg3 between +13V and +24V one can adjust the amount of 2nd harmonic in the curve set, a nice tune-able option.)
Triode Mu factor around 54.
It's near a 12GN7, but with a dense grid3. Plate Watts up-rate to about 9 Watts with +24v on G3. (current on g2 drops a fair amount)

2nd pic is 9KC6 with usual 0V on grid3.

9KC6 in triode mode, 3rd pic.

 

[aboos]

EL862 is a D3a clone from former eastern Germany tube factories.

 

[Pyka]

Ask smoking-amp：
9KC6 in triode mode，what is the step in volts for G1? 0,4V?

 

[smoking-amp]

Yes, for triode mode, 0.4V steps, with 50V per Horizontal division (plate). 10 mA Vertical per division.
This tube used to be on the $1 list.

 

[Pyka]

Yes, for triode mode, 0.4V steps, with 50V per Horizontal division (plate). 10 mA Vertical per division.
This tube used to be on the $1 list.

Thank you smoking-amp！