Hello,
I am looking for a 6V6.lib and 6V6.asy file for LTSPICE. Does anybody could help me? Sorry in advance if someone already ask this question, i am new on the forum, and may be i post on the wrong place... 🙂
Thanks
I am looking for a 6V6.lib and 6V6.asy file for LTSPICE. Does anybody could help me? Sorry in advance if someone already ask this question, i am new on the forum, and may be i post on the wrong place... 🙂
Thanks
*
* Generic pentode model: 6V6
* Copyright 2003--2008 by Ayumi Nakabayashi, All rights reserved.
* Version 3.10, Generated on Sat Mar 8 22:41:04 2008
* Plate
* | Screen Grid
* | | Control Grid
* | | | Cathode
* | | | |
.SUBCKT 6V6 A G2 G1 K
BGG GG 0 V=V(G1,K)+0.99999998
BM1 M1 0 V=(0.048335289*(URAMP(V(G2,K))+1e-10))**-0.77023894
BM2 M2 0 V=(0.6607234*(URAMP(V(GG)+URAMP(V(G2,K))/7.0192317)))**2.2702389
BP P 0 V=0.0010053341*(URAMP(V(GG)+URAMP(V(G2,K))/10.623555))**1.5
BIK IK 0 V=U(V(GG))*V(P)+(1-U(V(GG)))*0.00060166202*V(M1)*V(M2)
BIG IG 0 V=0.00051429562*URAMP(V(G1,K))**1.5*(URAMP(V(G1,K))/(URAMP(V(A,K))+URAMP(V(G1,K)))*1.2+0.4)
BIK2 IK2 0 V=V(IK,IG)*(1-0.4*(EXP(-URAMP(V(A,K))/URAMP(V(G2,K))*15)-EXP(-15)))
BIG2T IG2T 0 V=V(IK2)*(0.916000233*(1-URAMP(V(A,K))/(URAMP(V(A,K))+10))**1.5+0.083999767)
BIK3 IK3 0 V=V(IK2)*(URAMP(V(A,K))+3125)/(URAMP(V(G2,K))+3125)
BIK4 IK4 0 V=V(IK3)-URAMP(V(IK3)-(0.00061491868*(URAMP(V(A,K))+URAMP(URAMP(V(G2,K))-URAMP(V(A,K))))**1.5))
BIP IP 0 V=URAMP(V(IK4,IG2T)-URAMP(V(IK4,IG2T)-(0.00061491868*URAMP(V(A,K))**1.5)))
BIAK A K I=V(IP)+1e-10*V(A,K)
BIG2 G2 K I=URAMP(V(IK4,IP))
BIGK G1 K I=V(IG)
* CAPS
CGA G1 A 0.7p
CGK G1 K 5p
C12 G1 G2 3.3p
CAK A K 6.9p
.ENDS
* Generic pentode model: 6V6
* Copyright 2003--2008 by Ayumi Nakabayashi, All rights reserved.
* Version 3.10, Generated on Sat Mar 8 22:41:04 2008
* Plate
* | Screen Grid
* | | Control Grid
* | | | Cathode
* | | | |
.SUBCKT 6V6 A G2 G1 K
BGG GG 0 V=V(G1,K)+0.99999998
BM1 M1 0 V=(0.048335289*(URAMP(V(G2,K))+1e-10))**-0.77023894
BM2 M2 0 V=(0.6607234*(URAMP(V(GG)+URAMP(V(G2,K))/7.0192317)))**2.2702389
BP P 0 V=0.0010053341*(URAMP(V(GG)+URAMP(V(G2,K))/10.623555))**1.5
BIK IK 0 V=U(V(GG))*V(P)+(1-U(V(GG)))*0.00060166202*V(M1)*V(M2)
BIG IG 0 V=0.00051429562*URAMP(V(G1,K))**1.5*(URAMP(V(G1,K))/(URAMP(V(A,K))+URAMP(V(G1,K)))*1.2+0.4)
BIK2 IK2 0 V=V(IK,IG)*(1-0.4*(EXP(-URAMP(V(A,K))/URAMP(V(G2,K))*15)-EXP(-15)))
BIG2T IG2T 0 V=V(IK2)*(0.916000233*(1-URAMP(V(A,K))/(URAMP(V(A,K))+10))**1.5+0.083999767)
BIK3 IK3 0 V=V(IK2)*(URAMP(V(A,K))+3125)/(URAMP(V(G2,K))+3125)
BIK4 IK4 0 V=V(IK3)-URAMP(V(IK3)-(0.00061491868*(URAMP(V(A,K))+URAMP(URAMP(V(G2,K))-URAMP(V(A,K))))**1.5))
BIP IP 0 V=URAMP(V(IK4,IG2T)-URAMP(V(IK4,IG2T)-(0.00061491868*URAMP(V(A,K))**1.5)))
BIAK A K I=V(IP)+1e-10*V(A,K)
BIG2 G2 K I=URAMP(V(IK4,IP))
BIGK G1 K I=V(IG)
* CAPS
CGA G1 A 0.7p
CGK G1 K 5p
C12 G1 G2 3.3p
CAK A K 6.9p
.ENDS
Version 4
SymbolType CELL
LINE Normal -20 -38 20 -38
LINE Normal -20 -34 20 -34
LINE Normal -20 -38 -20 -34
LINE Normal 20 -38 20 -34
LINE Normal 20 0 12 0
LINE Normal 4 0 -4 0
LINE Normal -12 0 -20 0
LINE Normal 20 -16 12 -16
LINE Normal 4 -16 -4 -16
LINE Normal -12 -16 -20 -16
LINE Normal -48 16 -28 16
LINE Normal -20 16 -12 16
LINE Normal -4 16 4 16
LINE Normal 12 16 20 16
LINE Normal -24 32 24 32
LINE Normal -24 32 -32 40
LINE Normal 24 32 32 40
LINE Normal -28 36 28 36
LINE Normal 48 0 28 0
LINE Normal 0 -38 0 -64
LINE Normal -32 40 -32 64
LINE Normal -48 -8 -48 17
LINE Normal 48 17 48 -8
LINE Normal -35 -9 -27 -16
LINE Normal -35 36 -35 -9
LINE Normal -32 40 -35 36
ARC Normal -48 -56 48 40 48 -8 -48 -8
ARC Normal -48 -31 48 65 -48 17 48 17
WINDOW 0 16 -64 Left 2
WINDOW 3 0 80 Left 2
SYMATTR Value pentode
SYMATTR Prefix X
SYMATTR Description This symbol is for use with a subcircuit macromodel that you supply.
PIN 0 -64 NONE 0
PINATTR PinName P
PINATTR SpiceOrder 1
PIN -48 16 NONE 0
PINATTR PinName G1
PINATTR SpiceOrder 3
PIN -32 64 NONE 0
PINATTR PinName C
PINATTR SpiceOrder 4
PIN 48 0 NONE 0
PINATTR PinName G2
PINATTR SpiceOrder 2
SymbolType CELL
LINE Normal -20 -38 20 -38
LINE Normal -20 -34 20 -34
LINE Normal -20 -38 -20 -34
LINE Normal 20 -38 20 -34
LINE Normal 20 0 12 0
LINE Normal 4 0 -4 0
LINE Normal -12 0 -20 0
LINE Normal 20 -16 12 -16
LINE Normal 4 -16 -4 -16
LINE Normal -12 -16 -20 -16
LINE Normal -48 16 -28 16
LINE Normal -20 16 -12 16
LINE Normal -4 16 4 16
LINE Normal 12 16 20 16
LINE Normal -24 32 24 32
LINE Normal -24 32 -32 40
LINE Normal 24 32 32 40
LINE Normal -28 36 28 36
LINE Normal 48 0 28 0
LINE Normal 0 -38 0 -64
LINE Normal -32 40 -32 64
LINE Normal -48 -8 -48 17
LINE Normal 48 17 48 -8
LINE Normal -35 -9 -27 -16
LINE Normal -35 36 -35 -9
LINE Normal -32 40 -35 36
ARC Normal -48 -56 48 40 48 -8 -48 -8
ARC Normal -48 -31 48 65 -48 17 48 17
WINDOW 0 16 -64 Left 2
WINDOW 3 0 80 Left 2
SYMATTR Value pentode
SYMATTR Prefix X
SYMATTR Description This symbol is for use with a subcircuit macromodel that you supply.
PIN 0 -64 NONE 0
PINATTR PinName P
PINATTR SpiceOrder 1
PIN -48 16 NONE 0
PINATTR PinName G1
PINATTR SpiceOrder 3
PIN -32 64 NONE 0
PINATTR PinName C
PINATTR SpiceOrder 4
PIN 48 0 NONE 0
PINATTR PinName G2
PINATTR SpiceOrder 2
@ Manurban,
The 6V6 is variously described as a "beam tetrode" or "beam pentode" depending on which datasheet you are looking at. Nearly all SPICE "pentode" models ignore the pentode's suppressor grid (and the tetrode's beam-forming electrodes), and treat these tubes as though they were simply tetrodes. Note that the Ayumi model includes only the plate (A), screen grid (G2), control grid (G1), and cathode (K). Therefore, you can use the LTspice built-in tetrode symbol (in the Misc folder) with the Ayumi model if you like.
Of course, if you want your schematic to show the internal details of the 6V6 for cosmetic reasons you can do so but the extra parts (i.e., suppressor grid or beam forming electrodes) are not actually modeled and have no electrical connections in the schematic. The symbol that baudouin0 provided shows a suppressor grid tied to the cathode, which is how the 6V6 is structured, but the suppressor grid does not have a pin assignment like a true pentode symbol. LTspice does have a true pentode symbol in the same Misc folder (misspelled as "Pentrode") but it will not work with the Ayumi model of the 6V6.
I hope this helps.
The 6V6 is variously described as a "beam tetrode" or "beam pentode" depending on which datasheet you are looking at. Nearly all SPICE "pentode" models ignore the pentode's suppressor grid (and the tetrode's beam-forming electrodes), and treat these tubes as though they were simply tetrodes. Note that the Ayumi model includes only the plate (A), screen grid (G2), control grid (G1), and cathode (K). Therefore, you can use the LTspice built-in tetrode symbol (in the Misc folder) with the Ayumi model if you like.
Of course, if you want your schematic to show the internal details of the 6V6 for cosmetic reasons you can do so but the extra parts (i.e., suppressor grid or beam forming electrodes) are not actually modeled and have no electrical connections in the schematic. The symbol that baudouin0 provided shows a suppressor grid tied to the cathode, which is how the 6V6 is structured, but the suppressor grid does not have a pin assignment like a true pentode symbol. LTspice does have a true pentode symbol in the same Misc folder (misspelled as "Pentrode") but it will not work with the Ayumi model of the 6V6.
I hope this helps.
Last edited:
Sorry my pin names don't correspond (P instead of A etc) but it does work as its the SpiceOrder that's important.
Yes, I didn't mean to imply that your symbol would not work -- it certainly does. I just wanted to point out that the "pentode" model is really a tetrode model and that there is already a tetrode symbol in LTspice that will work with the Ayumi model.
Cheers!
Cheers!