[GreenKeys] Not Your Average M14 - eBay

[Jim Haynes]

On Fri, 29 Nov 2013, David Burns wrote:

> The FRXD design seems to presume a "same-speed" assumption on the sending and 
> receiving circuit (unlike the 28-RT), since there's only one motor, no 
> apparent tape-loop and (I'm guessing) no room for a speed-change gear 
> arrangement.  True?

No, the speed gear for the typing reperforator portion is behind that 
unit, while the speed gear for the transmitter-distributor portion is 
under the base.

In general in store-and-forward switching systems you want to have the
part that transmits cross-office to be faster than the incoming and 
outgoing lines.  This is to put the delay in queued messages on the
sending side rather than on the receiving side.  A busy cross-office
destination on the receiving side backs up messages addressed to other
destinations, which may not be busy.