>
>>
>>>I wonder if that's the same as the strowger switch we had in the UK - up
>>>then rotate. I worked on both the phone and the telex version, telex
>>>used +80v and -80v for signalling and 160v combined gave quite a shock
>>>if you weren't careful when jumpering.
>>>
>>
>> Quite likely, the last gasp in electro-mechanical telecom switching.
>> Ten wafers each with ten sets of contacts and an open slot. It handled two
>> digits. The first digit advanced the rotor to the proper wafer, then the
>> second digit rotated the shaft. Took the place of eleven single-wafer
>> rotary switches. <BRRRR> <CLICK CLICK CLICK...>
>>
>
>Do you consider the subsequent reed-relay-technology-based switches to
>be electro-mechanical?
>
Somewhat. You can't clean the contacts, but then there's little chance
for oxidation.
Chris
When the going gets weird, the weird turn pro
- Hunter S. Thompson
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