[GreenKeys] I'm back....M28/M35 parts interchangeability/ST-8000A connectors

[Don Robert House]

Remember everyone that John has a ST-8000A which is the USAF version  
of the ST-8000
The two are VERY different.

Don K9TTY
currently exiled in Illinois

On 1 Apr 2008, at 9:19 PM, Howard Weeks wrote:

There is another alternative.

If you remove the cover of the ST-8000, you will find jumpers inside
with one end hooked to the expensive plugs / sockets and the other
end connected to the electronics with a much more common inline plug
that is readily available from Mouser and inexpensive.  I just mad up
some new cables with screw type terminal strips for the external
connections.

Howard in GA

On 1 Apr 2008 at 16:01, Bill Henry wrote:

> John Duggan - and Greenkeys:
>
> The rear panel connectors are the "Catch 22" of the ST-8000A.  They  
> are all
> "special order" - and very expensive.  The accessory kit of  
> connectors for
> the ST-8000A is $500.00 (HAL P/N 970-08005).  Sorry about that but  
> it was
> the U.S. Government, not HAL who picked these things.  These are the  
> same
> connectors found on the Frederick 1280A/M - and we were required to be
> "form, fit, and function" compatible.   The Data I/O and Audio I/O are
> essentially identical connectors - but with a unique difference.   
> Compared
> to the "standard MS27508E14F35S", these have a 79 degree insert  
> rotation
> for the Data I/O and 66 degree rotation for the Audio I/O
> connection.  Definitely "special order".   You will have a hard time
> finding these things surplus.
>
> BUT - be inventive.  The pins are all #22, a standard pin size.   
> Pick up
> some MIL connectors at a hamfest (male pins) and chop the insert  
> insulator
> apart to get the pins.  Solder the required wires to these  
> individual pins
> and push each one into the appropriate MIL connector on the rear
> panel.  Use some "super high quality duct tape" to hold the pins in  
> place -
> a genuine "Red Green solution".  Put the modem in a rack and nobody  
> will
> know the difference.
>
> OR - replace the MIL connectors with something sensible - virtually  
> any
> other connector will be easier to obtain than these, even another MIL
> connector (MS3100 series, for example).
>
> OR - if you really want to spend the money, we have 4 or 5 of the  
> accessory
> kits left.
>
> 73,
> Bill Henry
>
>

Howard Weeks
Harlem, GA
K5JCP
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