[Icom] More on isolation relay (Adam)

Sun, 29 Dec 2002 00:05:32 -0600

Seems like the SB-220's that I had used 115 vac relays . . .

73/72, George    
Amateur Radio W5YR -  the Yellow Rose of Texas
In the 57th year and it just keeps getting better!
Fairview, TX 30 mi NE of Dallas in Collin county EM13qe
K2 #489  IC-765 #2349 IC-756 PRO  #2121 IC-756 PRO2 #3235

----- Original Message ----- 
From: "W3UIO" <[email protected]>
To: <[email protected]>
Sent: Saturday, December 28, 2002 11:24 PM
Subject: RE: [Icom] More on isolation relay (Adam)

> 
> > << A local ham fused the contacts in his ICOM the
> > first
> > time he tried it with a non-ICOM amp. The amp would
> > not unkey. >>
> > 
> > Wonder what amp he was using, and what the
> > keying-line voltage and current
> > were?
> The rig was the 756 (not Pro), and the amp was a
> Heathkit which uses 3-500Z's. May have been an SB-220.
> 
> I think the Heath amps had lots of voltage on the
> keying line.
> 
> Many thanks for all your comments and your expertise, Adam.
> 
> =====
> Larry, W3UIO