[GreenKeys] M15 How to disable unshift-on-space?

[drlegendre .]

Made the adapter. It was as easy as:

Edison-base to 2-prong AC outlet adapter -> generic quick-install AC (lamp)
plug -> inline-style fuseholder w/ 18ga pigtails + 3AG 2A slow-blow glass
fuse. No muss, no fuss - took 5 minutes and required no modification of the
original hardware. That's my kind of fix.. =)

Pics are here, sorry for the horrid flash:

http://nerp.net/~legendre/greenkeys/fusetron_adapter_01.jpg
http://nerp.net/~legendre/greenkeys/fusetron_adapter_02.jpg



On Sat, Sep 19, 2015 at 1:31 PM, drlegendre . <drlegendre at gmail.com> wrote:

> I have to admit to a decimal error, made when I was mentally estimating
> the motor current.. I had 160mA in my head, but the actual figure (measured
> last night for confirmation) is more like 1600mA (1.6A). Even so, a 6A fuse
> is still inadequate protection for it and has been pointed out, fuses /
> fustats in these low ratings aren't exactly hardware store items.
>
> One solution would be to make up a simple adapter using one of those
> old-fashioned socket adapters that screw into an Edison-base bulb socket
> and provide an AC mains plug receptacle. A fuseholder for a modern 1-1/4"
> glass fuse could be mounted on, and wired directly into the socket adapter.
> Then you can use a cheap, common type of fast or slow-blow fuse in the
> machine without disturbing the original hardware.
>
> Come to think, the base of a dead CFL bulb might make an even better
> socket adapter to mount the fuseholder.
>
> On Sat, Sep 19, 2015 at 12:18 PM, Nick England <navy.radio at gmail.com>
> wrote:
>
>> And for whatever it is worth, the Army manual for the TG-7-B (M15 with
>> governed motor) shows a 1.6 amp Fusetron.
>> Nick
>>
>>
>> On Sat, Sep 19, 2015 at 8:40 AM, Nick England <navy.radio at gmail.com>
>> wrote:
>> > A few notes -
>> > A quick look at a typical M15 table wiring diagram shows a 3.2 amp
>> Fusetron.
>> > http://www.navy-radio.com/manuals/tty/15_wd_drh.pdf
>> >
>> > Cheers,
>> > Nick England K4NYW
>> > www.navy-radio.com
>> >
>> >
>> > On Sat, Sep 19, 2015 at 2:26 AM, WA5CAB--- via GreenKeys
>> > <greenkeys at mailman.qth.net> wrote:
>> >>
>> >> As to the correct (original) fuse value, I no longer have any of the
>> dozen
>> >> or so M15's I've owned over the years (sold the last pair of TG-7-B's
>> about
>> >> a month ago to Third Army) but the 3.2 Amp that someone reported does
>> sound
>> >> about right.  Bear in mind that the same machine might have any of
>> about a
>> >> dozen different motors installed, not just the synchronous 115 VAC 60
>> CPS
>> >> ones in most machines running today.  For example, most of the Signal
>> Corps
>> >> machines had either AC or DC series governed motors with a built-in
>> lamp for
>> >> calibration.  A few machines had utility outlets installed.  So the
>> motor
>> >> wasn't the only thing that the fuse powered.
>> >>
>> >> Robert Downs - Houston
>> >> wa5cab dot com (Web Store)
>> >> MVPA 9480
>> >>
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