[Boatanchors] National SW-3 Coil Forms Wanted

[Al Klase]

*Why don't you modify this list so the pictures come through?!!

I CAN SHOW YOU HOW.
*
ARK Sig Block
Al Klase - N3FRQ
Jersey City, NJ
http://www.skywaves.ar88.net/
On 9/1/2022 2:40 PM, Al Klase wrote:
> Gang,
>
> After making some careful measurements on an original coil, here's my 
> reconstructed (dimensions adjusted to even numbers) drawing.
>
>
>
> All pins are 0.120 in diameter.
>
> Hope this helps,
> Al
>
> ARK Sig Block Al Klase - N3FRQ
> Jersey City, NJ
> http://www.skywaves.ar88.net/
>
> On 9/1/2022 12:13 PM, William Cromwell wrote:
>> Hi Scott,
>>
>> There are a lot of reasons besides 'nostalgia' to not modify the 
>> radios. I was hoping somebody might be ready to sell some surplus 
>> coils, too. What I have in mind to fabricate would not be mistaken 
>> for original equipment but would fit the existing sockets. I started 
>> on that project several years ago but I got sidetracked by family 
>> matters. I can't find my notes - including measurements of the pins 
>> and their spacing. I do have all the winding specs from National :) I 
>> want to get started soon but right now 'the pattern is full'. I have 
>> a pair of coils that cover 160 meters and one pair of bare forms.
>>
>> 73,
>>
>> Bill KU8H
>>
>> bark less - wag more
>>
>> On 9/1/22 09:39, whitebear1122 at comcast.net wrote:
>>> Hi Bill, Yes, that is an option to change the sockets but I won't do 
>>> that.  It would be a major disruption of the radio and not be an 
>>> SW-5 to me anymore.  I am fine using reproductions, or damaged wire 
>>> coils and rewinding them myself. I was hoping to at least come up a 
>>> set of damaged wire coils for rewinding.
>>>
>>> 73 Scott WA9WFA
>>>
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