Vectronics VEC-830K - Manual (Page 17)

VEC-830K Instruction Manual Single Side-Band Filter
If technical assistance or factory repair is desired, please refer to the warranty
instructions on the inside front cover.
THEORY OF OPERATION AND SPECIFICATIONS
Operation:
The VEC-830K uses two UA747 operational amplifier integrated circuits to
form four, flat cascaded Butterworth filter stages. Unlike passive filters using
inductors, no impedance matching is necessary for optimum performance. Also,
there is no insertion loss within the passband. This results in minimum amplitude
distortion and unity passband gain for all selectivity settings.
ENCLOSURE
Vectronics has designed a matching enclosure just for your VEC-830K SSB
Audio Filter Kit. The matching enclosure is an all metal box which includes
knobs, hardware, decals, and rubber feet. The Vectronics model number for
matching enclosure is VEC-830KC.
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