[ARC5] [Milsurplus] 26003A Navy aviation key

[Christopher Bowne]

And there’s the Wireless Set No. 19 leg strapped key that’s “sort of” insulated and series keys LV B plus - hot on both terminals!  Found out that on initial light off of my 19 set while strapping the key to my leg and wearing shorts!  Quickly installed a relay and was only keying 12V DC afterward!

Chris B.  AJ1G
Stonington CT

Sent from my iPhone

> On Jun 11, 2023, at 10:27, Rich Post <kb8tad at gmail.com> wrote:
> 
> 
> Yes, flameproof in fuel vapor situations.  But also good for avoiding some of the 'potential' bites on cathode keyed older rigs!
> 
> 
> 
>> On Sun, Jun 11, 2023 at 8:08 AM Michael Hanz <aaf-radio-1 at aafradio.org> wrote:
>> Once more with the picture...
>> 
>> On 6/11/2023 8:07 AM, Michael Hanz wrote:
>>> Along with KK5F's excellent coverage of this key, perhaps a photo of an original Bendix MT-11B might be useful.  Sure looks like the 26003 family. 
>>> 
>>> Bendix was into the radio scene as soon as aircraft became more than a curiosity.  The early aircraft apparently reeked of gasoline fumes on a *good* day, and an open telegraph key that could potentially initiate a spark upon key make or release wasn't a good idea.  Even later, a bullet or shell through a wing could provide a dousing or at least gasoline vapor throughout the cockpit.  The term 'flameproof' seems a bit odd,  except in the context of not lighting a flame in a fuel rich environment.  This in aircraft that had cigarette ashtrays in every plane... 😁 
>>> 
>>> - Mike  KC4TOS 
>>> 
>>> 
>>> 
>>> 
>>>> On 6/10/2023 1:43 PM, Mike Morrow wrote: 
>>>> 
>>>> From the NAVSHIPS 900,109 Navy Type Number book of September 1945, the following information is provided on the four nt-26003* keys: 
>>>> 
>>>> CN-26003     GM     CN-G-115 
>>>> KEY-TELEGRAPH 
>>>> FLAME-PROOF 
>>>> INSULATED FRAME. 
>>>> 05/03/33 
>>>> 
>>>>      -26003A     GO     RE 26F 111 
>>>> HAND TELEGRAPH KEY:   (NAF #37153) 
>>>> FLAME PROOF, 
>>>> INSULATED FRAME. 
>>>> KNOB OF LAMINATED MATERIAL SPEC. 17-P-5 TYPE-PBM. 
>>>> 10/11/33 
>>>> 
>>>> CME-26003B     VA-1     GRE 26J 1154A 
>>>> KEY, TELEGRAPH 
>>>> FLAME-PROOF 
>>>> (SLIGHT IMPROVEMENTS IN COMPONENTS) 
>>>> 01/06/38 
>>>> 
>>>> CME-26003C     VA-2 & VB-1     GRE 26J 1156A 
>>>> KEY, TELEGRAPH 
>>>> FLAME-PROOF 
>>>> SAME AS -26003B EXCEPT FOR LARGER TERMINAL TUBE FOR ARMORED CABLE 
>>>> 10/04/39 
>>>> 
>>>> Note that nt-26003 is associated with transmitter GM, and that nt-26003A is associated with transmitter GO. 
>>>> 
>>>> nt-26003B is associated with visual signaling equipment VA-1, and that nt-26003C is associated with visual signaling equipment VA-2 and VB-1. 
>>>> 
>>>> This key is my favorite military key.  I have owned five that were pulled from USN patrol aircraft being scrapped that had AN/ARC-25 (AN/ART-13 with AN/ARR-15A), AN/ARC-38, AN/ARC-38A, or AN/ARC-94 HF radio sets installed.  ALL.were nt-26003A keys.  At least one had the two-minute key-down caution. 
>>>> 
>>>> Mike / KK5F 
>>>> 
>>> 
>> 
>> -- 
>> Michael Hanz - KC4TOS
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