Get yourself one of the old ship transmitters now obsolete made by Standard
Radio ( ITT ) in Stockholm. They used BIG switches that are really tough and
all the switches used in commercial amateur linears are just toys in
comparison. I know - I happened to make the first factory drawings way back
in 1947 -48 as a young boy. Hams in Sweden still use them. Including me, hi!
Prosit de Hans SM5KI
----------
>Från: "Tom Rauch" <w8ji@contesting.com>
>Till: amps@contesting.com, Peter Chadwick <Peter_Chadwick@mitel.com>
>Ämne: RE: [AMPS] Switches
>Datum: tor 12 okt 2000 11.05
>
>
>> What do the manufacturers rate them at? Or is it a case that a switch that
>> the manufacturers rate for the job is prohibitively expensive?
>>
>> 73
>>
>> Peter G3RZP
>
>With some components, like switches, the only thing that matters
>is what the component really does in the real circuit.
>
>The RSC switch looks very large, but if you look at the smaller
>models the stationary contacts poke out towards the rotor. A small
>sharp edge sticks out towards another sharp edge, and spacing is
>small.
>
>That creates a weak point in voltage breakdown between what, in
>the end-application, is the highest stress point in the switch.
>
>Other than manufacturing a switch (which sounds like a good idea)
>is anyone aware of a large switch other than those by RSC
>(multitec) or the former Centralab?
>
>
>
>73, Tom W8JI
>w8ji@contesting.com
>
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>
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