[ARC5] ARC5 Digest, Vol 256, Issue 14

[Russell Tine]

Hi Mark,

I have some NOS pins, the stud is threaded and comes with a nut and washer.

Would these work for a dynamotor? If so I can send you a couple.

Russ K1RWT 

-------------- next part --------------
A non-text attachment was scrubbed...
Name: image0.jpeg
Type: image/jpeg
Size: 176490 bytes
Desc: not available
URL: <http://mailman.qth.net/pipermail/arc5/attachments/20250514/b5efc130/attachment-0001.jpeg>
-------------- next part --------------

Sent from a small device without vacuum tubes 

> On May 13, 2025, at 14:26, arc5-request at mailman.qth.net wrote:
> 
> ?Send ARC5 mailing list submissions to
>    arc5 at mailman.qth.net
> 
> To subscribe or unsubscribe via the World Wide Web, visit
>    http://mailman.qth.net/mailman/listinfo/arc5
> or, via email, send a message with subject or body 'help' to
>    arc5-request at mailman.qth.net
> 
> You can reach the person managing the list at
>    arc5-owner at mailman.qth.net
> 
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of ARC5 digest..."
> 
> 
> Today's Topics:
> 
>   1. Re: [MRCA] Dynamotor Pin Repair (Mark K3MSB)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Tue, 13 May 2025 14:24:22 -0400
> From: Mark K3MSB <mark.k3msb at gmail.com>
> Cc: Military Radio Collectors Association <mrca at mailman.qth.net>,    ARC5
>    <arc5 at mailman.qth.net>, List Milsurplus <milsurplus at mailman.qth.net>
> Subject: Re: [ARC5] [MRCA] Dynamotor Pin Repair
> Message-ID:
>    <CABdVoaC692qPgrEhQXKhh1peatFmYw-3pk0na5Z8uO=vY-wirQ at mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
> 
> There is an issue using a replacement banana plug.  There is very little
> clearance between the stud of the new banana plug and the choke that sits
> over it.  Even cutting the stud would be problematic.
> 
> [image: image.png]
> 
> I have replacement banana plugs and attempted to "deflower" it.   I tried
> twice and on both attempts I only got 3 of the 4 petals removed.  As
> careful as I was, the ones that broke off had a pretty good zing to them as
> they flew off.  Fortunately, I did have eye protection on.
> 
> [image: image.png]
> 
> After getting the petals out of the replacement jack, I tried heating the
> tip of the center part in the hopes the petal assembly would fall off.   Of
> course if it didn't....  It looks to be a compression fit to the nub of the
> tip of the center part.
> 
> 
> [image: image.png]
> 
> It does fit onto the broken dynamotor assembly jack, but is loose as would
> be expected.   I'm wondering if installing the dynamotor plate would be
> enough of a compression fit to make it work?
> 
> I'd like to hear what Dave has to say once he returns from his "man cave"
> as he's addressed this issue before.
> 
> 73 Mark K3MSB
> 
> 
> 
>> On Mon, May 12, 2025 at 12:02?PM <scottjohnson1 at cox.net> wrote:
>> 
>> It?s a mini banana, just sweat another one in.  You won?t hurt the mica!
>> 
>> 
>> 
>> Scott W7SVJ
>> 
>> 
>> 
>> *From:* mrca-bounces at mailman.qth.net <mrca-bounces at mailman.qth.net> *On
>> Behalf Of *Mark K3MSB
>> *Sent:* Monday, May 12, 2025 06:44
>> *To:* Military Radio Collectors Association (mrca at mailman.qth.net) <
>> mrca at mailman.qth.net>; ARC5 <arc5 at mailman.qth.net>; List Milsurplus <
>> milsurplus at mailman.qth.net>
>> *Subject:* [MRCA] Dynamotor Pin Repair
>> 
>> 
>> 
>> As can be seen in the following photo, one of the pins for a dynamotor is
>> damaged.
>> 
>> 
>> 
>> 
>> 
>> How have you fixed such a damaged pin?   I thought of putting a tiny
>> amount of aluminum foil in the dynamotor base for adequate contact....
>> 
>> 
>> 
>> 73 Mark K3MSB
>> 
> -------------- next part --------------
> An HTML attachment was scrubbed...
> URL: <http://mailman.qth.net/pipermail/arc5/attachments/20250513/6628766e/attachment.html>
> -------------- next part --------------
> A non-text attachment was scrubbed...
> Name: image001.png
> Type: image/png
> Size: 171843 bytes
> Desc: not available
> URL: <http://mailman.qth.net/pipermail/arc5/attachments/20250513/6628766e/attachment.png>
> -------------- next part --------------
> A non-text attachment was scrubbed...
> Name: image.png
> Type: image/png
> Size: 279522 bytes
> Desc: not available
> URL: <http://mailman.qth.net/pipermail/arc5/attachments/20250513/6628766e/attachment-0001.png>
> -------------- next part --------------
> A non-text attachment was scrubbed...
> Name: image.png
> Type: image/png
> Size: 404696 bytes
> Desc: not available
> URL: <http://mailman.qth.net/pipermail/arc5/attachments/20250513/6628766e/attachment-0002.png>
> -------------- next part --------------
> A non-text attachment was scrubbed...
> Name: image.png
> Type: image/png
> Size: 156030 bytes
> Desc: not available
> URL: <http://mailman.qth.net/pipermail/arc5/attachments/20250513/6628766e/attachment-0003.png>
> 
> ------------------------------
> 
> _______________________________________________
> ARC5 mailing list
> ARC5 at mailman.qth.net
> http://mailman.qth.net/mailman/listinfo/arc5
> 
> 
> End of ARC5 Digest, Vol 256, Issue 14
> *************************************