   (see IEEE Transactions on IE, Vol.36, No.3, August 1989, pp. 451,
   modified see IEEE Trans. on IE, vol 39, no. 2, April 1992, pp. 141)
   ELEMENTS
     RG, G - K = 50
     RS, A - Y = TABLE RS (VCR)
     JD, Y - K = DIODE EQUATION (1E-9,40.)
     CD, K - Y = X11 (300.E-12+12.2E-9*(JD+220.E-12))
   ; sense circuit:
     CR, S - E = 20E-6
     RE, S - E = 1
     JE, E - S = X2 (60*IRG + 22*IRS)
    ; clamp circuit
     JC, S - E = TABLE CL (VCR)
   FUNCTIONS
     TABLE RS = -1,103E3, 0,103E3, 1,0.0125, 2,0.0125
     TABLE CL = -100,0, 5,0, 6,1000
