[Hammarlund] Hammarlund HQ-180 Clock

[Andrea Liverani]

Hi, i am IW5CI, i like very much vintage radio and boatanchors made in the
USA.
In my collection i have some hammarlund gear like HQ-180AC,  SP-600 (JX-21)
a Superpro 400X and an HX-500 trasmitter. All the equipment is in good to
mint conditions and work great.

When i purchased th HQ-180AC i noted that the clock motor was very hot
after some usage and i found that the receiver was configured for 220V AC
as is present in Italy, but i think the clock motor works at 110V AC.

Has anyone an idea about the value of a suitable resistor to drop the
voltage from 220 to 110v?