[time-nuts] Re: Data collection cycle -- multiple sources to one counter?
Chuck Harris
cfharris at erols.com
Tue Jun 21 16:52:15 UTC 2005
Alberto di Bene wrote:
>>Sounds like a dip packaged reed relay.
>>
>>-Chuck
>
>
> It could be, but does it exist a reed relay with 4 positions ? The two
> switches in the 59307A are single pole, 4-way each.
>
> 73 Alberto I2PHD
Certainly is doable. Take 4 normally open, single pole reed relays,
connect one side of each reed together, stuff them into a package, and
you have a SP4T switch.
HP loved little relays, they put them in a lot of gear. Relays are
reliable, very low on resistance, very high off resistance, and switch
quickly enough for light duty applications, such as front panel controls...
-Chuck
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