[GreenKeys] Anyone know what this is (beyond the obvious)?

[larryradio at att.net]

My Model 35 ASR TWX machine has a 48 VDC supply in it for various relay 
functions.

lar
----- Original Message ----- 
From: "Norm" <normand3 at q.com>
To: <greenkeys at mailman.qth.net>
Sent: Tuesday, July 12, 2011 4:53 PM
Subject: [GreenKeys] Anyone know what this is (beyond the obvious)?


>
>
> Randy
> It's a possibley that it was used in conjunction with Telco equipt. Telco
> equipt used 48 VDC.
> Norm
> WB7WEQ