[Hammarlund] Hammarlund HQ-180 Clock

[Bill Cromwell]

On 09/09/2013 10:59 AM, Andrea Liverani wrote:
> 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?
>
Hi Andrea,

How about a small transformer that will give you 110 - 120 volts AC from 
your 220 volts input? Those are available new for what I think are 
modest prices at several online "stores". That would be the most 
reliable and efficient way to deal with it.

If you can find the current draw for the clock at 110 volts AC your 
resistor would have to drop the other 110 volts at whatever that is 
current. I wonder if one of the manuals gives that information. If you 
don't have the hard copy manuals you can probably find a copy at BAMA.

Good luck and...

73,

Bill  KU8H