[Boatanchors] Mercury Rectifiers

[J. Forster]

Thanks everybody.

I neglected to explain these 866s are in an MC 1 Battle Announcing system
on a Museum Ship.

We want to keep it as original as possible, but have had issues with the
866s blowing over.

Thanks all,

-John

==================





> Yes I did. Sorry I wasn't more clear about that. It's one of those
> assumptions made after decades of experience, figuring others must posses
> the same knowledge. Clearly not a good assumption to make in matters of
> HV!
>
> ~ Todd,  KA1KAQ/4
>
> On Mon, Apr 23, 2012 at 12:03 PM, Jim Wiley <jwiley at alaska.net> wrote:
>
>> **
>> He means filaments only - no plate voltage.  30 minutes or so should  do
>> the trick.
>>
>>
>> - Jim, KL7CC
>>
>>
>>
>> Todd, KA1KAQ wrote:
>>
>> On Mon, Apr 23, 2012 at 11:31 AM, J. Forster <jfor at quikus.com>
>> <jfor at quikus.com> wrote:
>>
>>
>>
>>  Hi,
>>
>> Is there an issue with Mercury pooling in rectifiers, like the 866, in
>> long term storage that would cause them to blow over more easily?
>>
>> If so, is there a fix?
>>
>>
>>
>>  AFAIK John, you simply need to run the rectifiers at temperature for
>> 10-15
>> minutes (a half hour is even better) to re-vaporize the mercury. I've
>> also
>> seen guys roll the tube around to spread the mercury into a thinner
>> surface
>> coating to speed things up. Not sure if that's required.
>>
>>
>