GM70 LTSpice Model:

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* Triode Type: tgm70

* Triode ID: 002

* Test Date: 240712

* Test Time: 201648

* Created by www.ballast-boy.com

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.SUBCKT tgm70 1 2 3 ; A G C ;

+ PARAMS: 

+ MU=7.754415703249101

+ EX=1.5853039823357433

+ KG=5892.042870616423

+ KP=121.17759385927098

+ KVB=664.5735127742881

+ VCT=-6.098305237162179

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E1 7 0 VALUE={V(1,3)/KP*LOG(1+EXP(KP*(1/MU+(VCT+V(2,3))/SQRT(KVB+V(1,3)*V(1,3)))))}

RE1 7 0 1G

G1 1 3 VALUE={(PWR(V(7),EX)+PWRS(V(7),EX))/KG}

RCP 1 3 1G ; TO AVOID FLOATING NODES

C1 2 3 8e-12 ; CATHODE-GRID

C2 2 1 1.2e-11 ; GRID-ANODE

C3 1 3 4e-12 ; CATHODE-ANODE

.ENDS