[Amps] More on the 30S1 and MP MKV

[Alek Petkovic]

Hey Jim, with regard to what you wrote below a few days ago, I looked 
in the radio manual and the band data jack pinout as well as the 
linear connection guff  on page 13.

As I see it, you have the opto isolator connected to pin 1 (13.8V) 
and  pin 2 (TX Gnd) on the 8 pin Band Data Jack. This means that the 
linear control is taken out before the relay and its RCA TX Gnd jack.

I take it that this is what you have done.

My ODC-15s are in the mail form far away across the sea.

73 and thanks,
Alek. VK6APK.





>&&&  I use a P+B  opto isolator on the output of both my MK-V`s
>(ODC-15)  is rated for  9-18 vdc input at 15 ma. Output side of it is
>rated at  60 vdc at 3A CCS.       (ODC-15A)  is rated for 9-18 vdc input at
>15 ma.Output side is rated for 200 Vdc at 1A CCS.   The input to output
>isolation is a whopping 4 kv.   The 13.8 vdc to operate em is available on
>the band data jack on the MK-V.    The GRND that actually operates them,
>comes from the same band data jack..Electronic grnd.
>(internal yaesu switch transistor) The stock yaesu spst mech relay is SHUT
>OFF, no longer used !   It`s useless anyway, since it takes 15 msecs to
>operate (which just adds ANOTHER 15 msecs to ur already slow
>collins relay).   The P+B  ODC-15 and A version... will operate in 100
>microseconds. The release time on both opto`s is 750 microseconds.
>No more hot switching ur collins on SSB.



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