Tube data info for ECC81


Va/Ia-curve for ECC81 generated by kurvmatch, displayed by gnuplot.

ECC81

This is the description file for ECC81.
#	$Id: ECC81.data,v 1.2 2014/01/02 00:45:48 ragge Exp $
#
name	"ECC81"
# alias 12AT7
Descr	"Philips 1951"
MU	38
VCT	0	# Contact potential (if known)
#
# These are for SPICE code.
CCG	2.3	# Cathode-grid
CCP	.2	# Cathode-plate
CGP	1.6	# Grid-plate
RGI	2000	# Resistance for grid current (estimate)
#
# Parameters for gnuplot output
Plotx	0	20	500	# Plate 0-500V 20V incr
Ploty	0	.001	.020	# Plate 0-15mA 1mA incr
Plotg	0	-1	-8	# Grid 0-(-18)V -2V incr
Wa	2.5
#
# Tube definition
Type	Triode
# Vp 	Vg	Ip
Triode Param
50	0	0.004
100	0	0.0085
100	-1	0.003
150	-1	0.007
200	-3	0.0025
200	-2	0.006
200	-1	0.0115
300	-6	0.0010
300	-5	0.0026
300	-4	0.005
300	-3	0.009
400	-6	0.0047

ECC81 Spice code

*
* ECC81 code from Philips 1951 generated by kurvmatch
*
.SUBCKT ECC81 1 2 3
XZ1 1 2 3 Triode CCG=2.3P CGP=1.6P CCP=0.2P MU=71 EX=1.03 KG1=168 KP=282 KVB=0 RGI=2000
.ENDS