Adding new transistors to ltspice electronics forum (circuits, projects and microcontrollers) electricity 4th grade worksheet

I am wanting to build an image orthicon B&W television camera and have the complete circuit diagram for a 1960s transistorized image orthicon camera chain. Unfortunately the circuit has obsolete germanium transistors so I need to somehow substitute modern available silicon transistors in place of them and have been reading up some modification tips on substituting germaniums for silicons here http://www.hawestv.com/transistorize/germanium1.htm .

Anyhow cutting to the chase I need to be able to test sections of the camera’s circuitry using the original germanium transistors in LTspice and then with silicon transistors along with the necessary modifications test the circuitry again to see if the results match the original design. However I haven’t got the faintest idea in understanding the code values of the transistors eg.:

.MODEL 2N3393 NPN(IS=12.03E-15 ISE=8.195E-12 ISC=0 XTI=3 BF=154.1 BR=4.379 IKF=0.1072 IKR=0 XTB=1.5 VAF=37.37 VAR=12.5 VJE=0.65 VJC=0.65 RE=0.1 RC=1 RB=10 CJE=8.307E-12 CJC=5.777E-12 XCJC=0.75 FC=0.5 NF=1 NR=1 NE=1.971 NC=2 MJE=0.384 MJC=0.3199 TF=385.4E-12 TR=783.8E-12 ITF=0.17 VTF=3 XTF=8 EG=1.11 KF=1E-9 AF=1 VCEO=25 ICRATING=500M MFG=NSC)

G’day. Thanks for helping but that wasn’t quite the answer I was after nor that was the question I was actually asking. That particular transistor I am aware is already in the models list in standard.bjt and I actually cut and pasted the given code for that 2N3393 transistor from standard.bjt as an example showing what kind of mumbo jumbo coded parameters LTspice uses to specify transistor values instead of having a user friendly parameter settings for us to add new transistors such the data on transistors listed on alltransistors.com .

What I want to know is when I want to add new transistors to the standard.bjt, how do I convert the transistor specifications like max collector-base voltage, max collector current etc. to the mumbo jumbo code LTspice uses such as ISE= ISC= BF= BR= etc.? I basically want to enter all those listed old germanium transistors into standard.bjt with the appropriate codes that represent those transistors’ specifications so I can accurately reconstruct sections of the camera’s circuits where the transistors are in LTspice, run the appropriate signals through them and look at the output signal, then after that replace the germanium with a silicon and the appropriate resistors to make the silicon do the job similarly to the germanium and test the output signal to see if it’s the same so I know if it will work or not.

G’day. Thanks for helping but that wasn’t quite the answer I was after nor that was the question I was actually asking. That particular transistor I am aware is already in the models list in standard.bjt and I actually cut and pasted the given code for that 2N3393 transistor from standard.bjt as an example showing what kind of mumbo jumbo coded parameters LTspice uses to specify transistor values instead of having a user friendly parameter settings for us to add new transistors such the data on transistors listed on alltransistors.com .

What I want to know is when I want to add new transistors to the standard.bjt, how do I convert the transistor specifications like max collector-base voltage, max collector current etc. to the mumbo jumbo code LTspice uses such as ISE= ISC= BF= BR= etc.? I basically want to enter all those listed old germanium transistors into standard.bjt with the appropriate codes that represent those transistors’ specifications so I can accurately reconstruct sections of the camera’s circuits where the transistors are in LTspice, run the appropriate signals through them and look at the output signal, then after that replace the germanium with a silicon and the appropriate resistors to make the silicon do the job similarly to the germanium and test the output signal to see if it’s the same so I know if it will work or not.