Dual Voltage Processor Model 257t

Model 257 Dual Control Voltage Processor consists

of two identical sections, each of which permits

several applied control voltages to define a single

output voltage according to the equation:

(Va K) + ((Vb (1-M)) + (Vc M)) + Voffset = Vout

The algebraic manipulations possible with this

module include addition, subtraction, scaling,

inversion, and multiplication. Also incorporated is the

capability of using one control voltage (M) to transfer

control from one applied voltage (V_b) to another

(V_c).