[HAM] Case heaters

[David Anderson]

Hi Mike,

That's a very interesting piece of data. I know that console organs  
sometimes had heaters installed--they're noted on the organ  
schematics--but I didn't know they put them in the M-series organs,  
too. The purpose I've usually heard is that they were there to keep  
the oil in the TG bearings warm enough in churches that might only be  
heated for services, but in this case, the heater is clearly there to  
keep moisture down.

I don't know what the climate's like in Honolulu, but I do know that  
tropical environments played hell with electronics of this era.

David

On Mar 3, 2008, at 3:55 PM, Mike Kearney wrote:

>>
> Hi David,
>
> My 1955 M2 has a red paper tag on the power cord that says  
> something like:
> "Important - This power cord should be connected to electric outlet
> which is active at all times. Do not plug into outlet controlled by
> switch. Uninterrupted power is required for a  (unreadable) resistor
> built into the console to (unreadable) excessive moisture out. Current
> consumption is less than a small light bulb."
>
> The original owner told me this M2 was bought in Honolulu. I don't  
> know
> if the resistor was unique to items going overseas or common to all  
> models.
>
> Regards,
> Mike