6AV5 spice model

[Tubelab_com]

I downloaded a spice model for a 6AV5 off the web somewhere. This was late last year. It was lost when my old computer died. I can not find it anywhere now. Does anyone have a copy of it, or know where it can be found.

Spice models for any other sweep tubes would also be useful.

 

[Geek]

Hi Tubelab,

Here's my whole collection.

Cheers!

 

[wa2ise]

Another spice model

Lately I ran across the specs for the 7695 tube, which also has a 50V at 150ma heater, but can do about 4 watts out, instead of about 1 2/3 watts from a 50C5. The 7754 is the 6.3V version. It's load would be 1100 ohms instead of 2.5K. Rp=7K, gm=11000umhos, G1 voltage=-11V, G2=130V, plate current 100ma. I haven't obtained any of these tubes, but they do look interesting. They are physically fatter, regular 9 pin miniature tube socket but wide body (like a compactron they made with a regular 9 pin pattern). I'd have to change the OPTs though.

Here's a 3f4 spice model:

*Vacuum Tube Tetrode (Audio freq.)
.SUBCKT X7695 A S G K
*
* Calculate contribution to cathode current
*
*the number at the right end determines sharpness of knee
Bat at 0 V=0.636*ATAN(V(A,K)/9)
Bgsg gsg 0 V=URAMP(V(S,K)*0.12-((-V(G,K))*0.68)+V(A,K)/290)
Bgss gss 0 V=URAMP(V(S,K)*0.12-((-V(G,K))*0.87)+V(A,K)/290)
Bgsg2 gsg2 0 V=V(gsg)^1.35
Bgss2 gss2 0 V=V(gss)^1.35
Bcath cc 0 V=V(gsg2)*V(at)
*
* Calculate anode current, grid line spacing adjust and peak plate current
*
Ba A K I=6.260E-3*V(cc)
*
* Calculate screen current
*
Bscrn sc 0 V=V(gss2)*(1.1-V(at))
Bs S K I=2.46E-3*V(sc)
*
* Grid current (approximation - does not model low va/vs)
*
Bg G K I=(URAMP(V(G,K)+1)^1.5)*50E-6
*
* Capacitances
*
Cg1 G K 10p
Cak A K 9p

Cg1a G A 0.75p

.ENDS X7695

 

[Tubelab_com]

Geek:

Thanks, the spice.txt file looks like the one that I had. I have a few ideas to extreme to try in the real world, until they work in the virtual world.

WA2ISE:

The 7695 sounds interesting, I don't think that I have any of them, but I do have some other "fat boy" 9 pin tubes. I can't find the numbers right now but I remember a video output tube and a dual dissimilar triode for vertical output service. Thanks for the model, if I make something in the virtual world, I guess I will have to find some of the tubes.