Vacuum Tube SPICE Models

[jazbo8]

@jazbo In your 5670 Ayumi model, the CAK line should be CAK A K 1.0p.

Good catch, fixed the code above.

 

[dreamth]

Is it possible that somebody can help me with spice model for D3A or E810F as a pentode?I would prefer it to work in ltspice but any model would be very good.

 

[jazbo8]

Please always search the thread before asking for any model.
Vacuum Tube SPICE Models

 

[dreamth]

I just saw the e810f model but the d3a as pentode is the one i can't find at all and that i really need.Actually i reedited the initial message by adding the e810f and later on i found the model.

 

[jazbo8]

I see. Sorry for the misunderstanding.

 

[dreamth]

It was my fault, sorry!

 

[jazbo8]

Found it, the forum software has problem searching for words with three characters (or less), but Google still gets it.
Vacuum Tube SPICE Models

 

[dreamth]

Thank you very much!

 

[jazbo8]

You are welcome, please let us know how it works out.

 

[dreamth]

I surely will!Thank you again!

 

[cogsncogs]

Is it possible that somebody can help me with spice model for D3A or E810F as a pentode?I would prefer it to work in ltspice but any model would be very good.

Found using search term D3A_AN.
http://www.diyaudio.com/forums/tubes-valves/243950-vacuum-tube-spice-models-59-post4134400.html

 

[dreamth]

Thank you! I allready made use of some models you sugested here:
Vacuum Tube SPICE Models
It's interesting that jazbo suggested your models while you suggested his models.
So i allready tried your improved pentode model here and it works :

1V2 phono riaa preamplifier
I should try jazbo's(Nakabayashi) one too.
For the triode mode i could only hope that nakabayshi's would be more realistic than Bartola, but who knows untill real measurements are performed?

 

[dreamth]

I tried today Nakabayashi's models and they give worse thd figures by 4...6 db which makes me trust them more.I don't really know if they are better than the others, but i preffer worse results in a sym.

 

[jazbo8]

Did you have a chance to compare the simulation results with the actual circuit? It should give you an idea which model is more suitable, assuming that the tube used is close to the spec.

 

[dreamth]

Well...i don't have a thd analyser at hand and the circuit in the link is still subject to some modifications.

 

[artosalo]

Well...i don't have a thd analyser at hand...

THD analyzer = PC + FFT freeware, means practically anybody can have such in minutes.

 

[dreamth]

I had the occasion to use Precision one and Two but never tried a soundcard.Probably will in the future as i have a professional soundcard standing on a shelf but never used it.I'm a bit clumsy when it comes to new techniques...

 

[jazbo8]

There are a lot of threads on the subject here: http://www.diyaudio.com/forums/equipment-and-tools/ when you are ready to investigate.

 

[dreamth]

Never got the time for that...i just made a download to rmma and arta and will read the manuals ...Do you have any hint for the quickest set-up for my soundcard?I have an Audient id22.What software do you think i should use for valve world?I obviously don't need AP's precision.

 

[dreamth]

Untill now i evaluated my work with just square waves...Last phono preamp was true up to 25khz square wave on my scope.I never got the time to simulate that version, but that was more complex compared with my actual circuit.