**** 4P1L SCREEN AS ANODE2 Composite DHT *****************************************
* Created on 08/04/2014 16:39 using paint_kit.jar 2.9 
* Curves and model created by Ale Moglia / valves@bartola.co.uk
* www.bartola.co.uk/valves
* Plate Curves image file: 4P1L Screen as Anode2.png
* Data source link: www.bartola.co.uk/valves
*
* Capacitances not updated !!!
* RFIL is 4.45V/330mA

*----------------------------------------------------------------------------------
.SUBCKT DHT_4P1L_SCREEN 1 2 3 4 ; P G K1 K2
+ PARAMS: CCG=3P  CGP=1.4P CCP=1.9P RFIL=13.6
+ MU=9.6 KG1=1545 KP=111.6 KVB=256.7 VCT=0.374 EX=1.43 RGI=2000
* Vp_MAX=200 Ip_MAX=20 Vg_step=2 Vg_start=4 Vg_count=12
* Rp=4000 Vg_ac=55 P_max=40 Vg_qui=-48 Vp_qui=300
* X_MIN=108 Y_MIN=158 X_SIZE=416 Y_SIZE=490 FSZ_X=1128 FSZ_Y=758 XYGrid=false
* showLoadLine=n showIp=y isDHT=y isPP=n isAsymPP=n showDissipLimit=y 
* showIg1=n gridLevel2=n isInputSnapped=n  
* XYProjections=n harmonicPlot=n harmonics=y
*----------------------------------------------------------------------------------
RFIL_LEFT    3  31 {RFIL/4}
RFIL_RIGHT   4  41 {RFIL/4}
RFIL_MIDDLE1 31 34 {RFIL/4}
RFIL_MIDDLE2 34 41 {RFIL/4}
E11 32 0  VALUE={V(1,31)/KP*LOG(1+EXP(KP*(1/MU+V(2,31)/SQRT(KVB+V(1,31)*V(1,31)))))} 
E12 42 0  VALUE={V(1,41)/KP*LOG(1+EXP(KP*(1/MU+V(2,41)/SQRT(KVB+V(1,41)*V(1,41)))))} 
RE11 32 0 1G 
RE12 42 0 1G 
G11 1 31 VALUE={(PWR(V(32),EX)+PWRS(V(32),EX))/(2*KG1)} 
G12 1 41 VALUE={(PWR(V(42),EX)+PWRS(V(42),EX))/(2*KG1)} 
RCP1 1 34 1G 
C1 2 34 {CCG} ; CATHODE-GRID 
C2 2 1 {CGP} ; GRID=PLATE 
C3 1 34 {CCP} ; CATHODE-PLATE 
D3 5 3 DX ; FOR GRID CURRENT 
D4 6 4 DX ; FOR GRID CURRENT 
RG1 2 5 {2*RGI} ; FOR GRID CURRENT 
RG2 2 6 {2*RGI} ; FOR GRID CURRENT 
.MODEL DX D(IS=1N RS=1 CJO=10PF TT=1N) 
.ENDS 
*$