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

[Howard Weeks]

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