[Yaesu] FT-1000MP MK V keying SB-220

Fri, 5 Dec 2003 10:17:42 -0800

Jim,
I assume you refer to the change to the vacuum relay for QSK operation?
This would indeed solve the problem and will cost quite a bit (two SPDT
vacuum relays at $32 each) compared to a simple external 12V relay.  I do
prefer elegant solutions but need to consider the time involved as well.
Thanks for the idea.

Al, N6TA

-----Original Message-----
From: [email protected] [mailto:[email protected]]On
Behalf Of Jan Erik Holm
Sent: Thursday, December 04, 2003 10:52 PM
To: [email protected]
Subject: Re: [Yaesu] FT-1000MP MK V keying SB-220

Time to rebuild the keying cirquit in the 220.
Go to AG6K homepage for information.

73 Jim SM2EKM
----------------------

Al Toothaker wrote:

> Just began the connections to a new MK V and find that the 120VDC from the
> relay in the SB220 amplifier
> is not compatible with the MK V relay which is good for only 100VAC or
> 60VDC.  However, the manual states it is compatible with the 220 and 221
in
> the instructions for hooking up a linear amp.
> Anyone know the real deal here?  I do now wish to fry the internal XCVR
> relay but also do not relish the thought of adding another external relay
> just to drove the SB-220 relay.
>
> Thanks for any inputs...
>
> Al, N6TA
>
,

Moderator: Ray Brown, KBXSTN
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