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-   -   Vacuum Tube SPICE Models (https://www.diyaudio.com/forums/tubes-valves/243950-vacuum-tube-spice-models.html)

jazbo8 31st October 2015 06:28 PM

Quote:

Originally Posted by mls (https://www.diyaudio.com/forums/tubes-valves/243950-vacuum-tube-spice-models-post4501411.html#post4501411)
Excellent - didn't realize you could do this either, I'm just starting the steep learning curve (no pun..) of LTSpice. Appreciate the help.

You are welcome, what are you trying to sim? Ayumi did a whole article on the Olson 6F6 amplifier, so the model should work pretty well.

mls 31st October 2015 06:45 PM

Quote:

Originally Posted by jazbo8 (https://www.diyaudio.com/forums/tubes-valves/243950-vacuum-tube-spice-models-post4501453.html#post4501453)
You are welcome, what are you trying to sim? Ayumi did a whole article on the Olson 6F6 amplifier, so the model should work pretty well.

Single ended DHT amp using 6F6 triode as a driver tube.

jazbo8 31st October 2015 07:26 PM

6F6 Triode-Connected Model
 
There is a triode-connected model for the 6F6:

Code:

*
* Generic triode model: 6F6T
* Copyright 2003--2008 by Ayumi Nakabayashi, All rights reserved.
* Version 3.10, Generated on Sat Mar  8 22:40:04 2008
*            Plate
*            | Grid
*            | | Cathode
*            | | |
.SUBCKT 6F6T A G K
BGG  GG  0 V=V(G,K)+0.99999999
BM1  M1  0 V=(0.043621772*(URAMP(V(A,K))+1e-10))**-0.51782633
BM2  M2  0 V=(0.74337419*(URAMP(V(GG)+URAMP(V(A,K))/5.8829755)+1e-10))**2.0178263
BP    P    0 V=0.00053269576*(URAMP(V(GG)+URAMP(V(A,K))/7.9138819)+1e-10)**1.5
BIK  IK  0 V=U(V(GG))*V(P)+(1-U(V(GG)))*0.00030710831*V(M1)*V(M2)
BIG  IG  0 V=0.00019764236*URAMP(V(G,K))**1.5*(URAMP(V(G,K))/(URAMP(V(A,K))+URAMP(V(G,K)))*1.2+0.4)
BIAK  A    K I=URAMP(V(IK,IG)-URAMP(V(IK,IG)-(0.00037552047*URAMP(V(A,K))**1.5)))+1e-10*V(A,K)
BIGK  G    K I=V(IG)
* CAPS
CGA  G    A 4p
CGK  G    K 5p
CAK  A    K 6.9p
.ENDS


thehoj 2nd November 2015 02:33 PM

Does anyone have a model of the 6N7? I can't seem to find one anywhere.

jackinnj 2nd November 2015 04:11 PM

Quote:

Originally Posted by thehoj (https://www.diyaudio.com/forums/tubes-valves/243950-vacuum-tube-spice-models-post4503223.html#post4503223)
Does anyone have a model of the 6N7? I can't seem to find one anywhere.

MU 36.70514521
1/MU 0.027244137
EX 1.244470275
KG1 1575.06609
KP 279.2674186
KVB 2968.070994

frozenoak 4th November 2015 05:39 AM

I have so much to learn.

PinoNL 4th November 2015 05:19 PM

Maybe I missed it, but does someone has a model of the 6AS7?

jazbo8 4th November 2015 05:45 PM

It's the same as the 6080.

PinoNL 5th November 2015 02:21 PM

Quote:

Originally Posted by jazbo8 (https://www.diyaudio.com/forums/tubes-valves/243950-vacuum-tube-spice-models-post4505783.html#post4505783)
It's the same as the 6080.

Are they fully compatible?

dgta 8th November 2015 05:36 AM

Greetings. I'm just getting up to speed on LTSpice. Loaded tubes per post #117 and they work fine. Unzipped the Ayumi files from the fist page of this thread. Do those go in the \lib\sym directory? Do I need to manually create corresponding .asy files for each of the Ayumi tubes and put them in the sym directory?


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