[GreenKeys] Model 28 TD Mods

[Nick England]

Here's the correct link
https://www.tedss.com/181384
These are Teletype Part 181384 (88-108 uF) as used in the M33 and M32.
Also suitable as a substitute for 162072 (33-103 uF) used in 0.025 HP
miniature motor M28 mini-TD and mini-ROTR equipment (I just cut the wire
leads short and soldered to them).
While not the correct capacitor 122245 (43-48uF) used with the 1/20 HP M28
KSR, RO, TD, and reperf motor, I have had no problem using it for that -
most importantly it fits in the LMU where the original is.

I think Tom says that this capacitor did not work for the larger 1/12 HP
motor used in his 28ASR. That cap is 160299 (226 uF)

See https://www.navy-radio.com/manuals/tty/295B-7012.pdf

Happy Thanksgiving!
Nick England K4NYW
www.navy-radio.com


On Thu, Nov 25, 2021 at 1:37 PM John W9DDD <w9ddd at tapr.org> wrote:

> Tedds.com <http://tedds.com> has sku 2020000083 which physically fits in
> the belly of the motor assembly.  It is electrically the next larger in
> capacitance, but works fine in the 1/20 HP and I think the correct size for
> the 1/12 HP.
> The other thing is leads instead of solder lugs.  It actually has a 181xxx
> Teletype part number on it   .
>
> IIRC a search on their site for the cap p/n for either the 1/20 or 1/12 HP
> will get an exact replacement ar 4x price.
>
> John, W9DDD
>
>
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