[Hammarlund] Hammarlund chokes in SP-600

[Gary]

If interested, I have two good chokes for the SP-600 series. They have been 
tested at 2.5kv and passed with flying colors. These are originals.
Regards,
Gary...WZ1M
-----------------------------------------------------------------------------------------------------------------
----- Original Message ----- 
From: <kirklandb at sympatico.ca>
To: <hammarlund at mailman.qth.net>
Sent: Wednesday, March 10, 2010 12:58 PM
Subject: Re: [Hammarlund] Hammarlund chokes in SP-600


>
> you have to break the solder seal around the base.
>
> I would suggest stripping the paint, this use a propane touch to heat 
> things up enough
>
> to melt the tar and extract the core.  you will need to anchor the case 
> while you pull up on the core.
>
>
>
> I had to real seal one once. I needed the propane touch to get enough heat 
> to melt the solder however,
>
> it also caused the tar to melt and bubble up. I fixed that by immersing 
> the body of the choke in water but
>
> left the bottom above water. The water kept the tar cool enough while I 
> soldered it back together.
>
>
>
> bill, ve3jhu
>
>> From: kgordon2006 at verizon.net
>> To: David_Wise at Phoenix.com; hammarlund at mailman.qth.net
>> Date: Wed, 10 Mar 2010 09:31:23 -0800
>> Subject: Re: [Hammarlund] Hammarlund chokes in SP-600
>>
>> On 10 Mar 2010 at 9:06, David Wise wrote:
>>
>> > Has anyone tried de-potting one?  (Then add insulation.)
>>
>> Shouldn't be too difficult, if one can talk the wife into using
>> her stove for a while...and if she doesn't mind the smell of
>> melting tar, or whatever is in there.
>>
>> I have a -JX1 that I will restore some time after I retire (April
>> 30). If mine has one of those iffy chokes, I'll try to re-pot it.
>> If that takes place, I'll report back here.
>>
>> Ken W7EKB
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