• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

Triode/Pentode Loadline Calculator

6j20p.gif
Excuse me, how managed translated.
 
thanks charm,,,but you did not answer why it can't be use for audio..
Because here is offtopic.
Pentodes with a cathodic grid 6Zh20P, 6Zh21P, 6Zh22P, 6Zh44P of these lamps didn't receive broad distribution. 6Zh44P some time it was applied in UPCh of a sound of TVs of the third class, in the reflex scheme - at first I strengthened sound PCh, then I carried out a role of the LF powerful amplifier. Thereby all path of a sound was executed on one lamp. Ho "capriciousness", characteristic for lamps with a cathodic grid, because of impossibility of full stabilization of the mode the resistor which is switched on in a cathode chain and also
low quality of a sound of such reflex cascade, led to that soon the scheme was replaced on more traditional.
In my opinion I gave at once the answer short and exact. If the lamp was good in audio, all would apply.
 
Last edited:
Because here is offtopic.
Pentodes with a cathodic grid 6Zh20P, 6Zh21P, 6Zh22P, 6Zh44P of these lamps didn't receive broad distribution. 6Zh44P some time it was applied in UPCh of a sound of TVs of the third class, in the reflex scheme - at first I strengthened sound PCh, then I carried out a role of the LF powerful amplifier. Thereby all path of a sound was executed on one lamp. Ho "capriciousness", characteristic for lamps with a cathodic grid, because of impossibility of full stabilization of the mode the resistor which is switched on in a cathode chain and also
low quality of a sound of such reflex cascade, led to that soon the scheme was replaced on more traditional.
In my opinion I gave at once the answer short and exact. If the lamp was good in audio, all would apply.

Thanks...Back to topic...

I hope in the future, GSMOK will add some russian pentodes as triodes...since there's no much data on these cheap and good devices as for me...
 
gsmok, I continue to be grateful for this wonderful program.

would you please consider adding the 6C33c and the 6AS7 and....the 3A5, 1H4-G, 25T, 35T, and 100TL LOL?

But of all of these, the 6C33c and the 6AS7 are by far the most important.

Very Best, Synchro27
 
H3 for 6S33S

Holy Guacamole, 😱

using gsmok's simulator, I can't find a combo for the 6S33S (6C33C) for SET use that doesn't have sky high H3, and I do mean sky high.

Is sky high H3 a characteristic of the 6S33S, or am I doing something wrong?

For the 845, admittedly a very linear triode indeed, I can fiddle with the simulator to get H3 really low, lower than 0.2%, but not the 6S33S.

Can someone show a setup on gsmok's simulator for the 6S33S for a SET that has reasonable distortion specs?

Very Best, Synchro27