The JR forms are definitely smaller, half the size. 
73-
W1JCW
John
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-----Original Message-----
From: TowerTalk <towertalk-bounces@contesting.com> On Behalf Of 
mark@sladenfamily.com
Sent: Friday, August 2, 2024 6:38 AM
To: towertalk@contesting.com
Subject: [TowerTalk] Mosley coil forms
Hi all,
 
I have an old Mosley TA-33-M that I picked up last year at Dayton.
 
I did some reconditioning last year before I put it up. cleaning with TSP and 
inspecting the coils.
 
Two or three of the coil forms had either cracked or broken, and I reassembled 
them with a vice and epoxy. 
That lasted through last winter, but I am thinking I should do something better 
while I have good weather.
 
I saw a 3D print stl online by  SA2CLC for TA33JR forms that I was considering 
printing in ABS, but I did not know if the coil forms were
identical, and I could not find any discussion around that.   I wonder if
anyone on the list has experience with TA33JR vs TA-33-M coil forms.
 
Thanks
Mark
W8GU
 
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