A sophisticated beast  ...and I do mean "beast".  Vortexion advertised it as a 'portable' machine  -  which is fine, provided your definition of portability includes an object the size of a suitcase that weighs in at 70 lbs!

It married the solid WEARITE tape transport, as used in Ferrograph machines, with excellent valve electronics.  A rich list of features included three heads, two recording inputs (balanced/unbalanced), a PPM level meter and so many adjustments for bias, EQ, gain and suchlike that the control panel was rather crowded.

Sincere thanks to Stuart Blacklock for providing this picture of a beautifully restored example from his own collection.