[Amps] IC-718 and AL-811: Icom manual misleading, interface necessary according to Icom technician

[gdaught6 at stanford.edu]

Hi Will,

> I wonder if you got a reply from someone that dont know what they're 
> talking about by the sounds of it. Heck, a small 2N2222A will switch
> the  load there with room to spare. 

The transistor switch is what I use:  I simply installed one in my 
amplifier, so it pretty much doesn't care what the source of the T/R 
switch signal is.

> Surely, they dont have the
> switching coming  straight off an IC? I dont have a schematic of it
> here to look at and see  what they've done, but that just dont sound
> right. Also, if it has an  actual internal relay, even a small reed
> type at that, it sould switch  that amount. 

No, it's not an IC, it's a small relay.  My (contesting) experience 
was that the contacts would begin to stick, even when switching well 
within their specified voltage & current.

> When they said "either" 16
> volts or 2 amps, but not both, is  a bunch of hogwash. It just sounds
> to me like a ploy to get around  warranty work no matter what!

I don't know.  I've had nothing but good experiences with Icom.  But 
the T/R switch output is way happier seeing my 0.6v @ 2ma load than 
it was seeing my 12V relay.

73,

 George T. Daughters, K6GT