1962 Premier Twin 8 vs 1964 Marvel Amp

Two early 60's amp made in NYC by Multivox.  They share similar circuits, with 7591A power tubes and 12AX7 preamp tubes.  The Twin 8 has two 8-inch speakers while the Marvel amp has a single 6-inch speaker.  They both make about 6 watts of power.

Both amps have been worked on by Bruce Collins at Mission Amps.  Both had grounded power cords installed and worn components replaced.  Two tone caps were changed on the Twin 8.