[ICOM] is there some sort of protector on the RX ANT, input of a 756 Pro?

[sdaitch at kuw.ibb.gov]

I can't speak of any Icom unit, as Gary has 
noted, but the R-71 had a small pigtail lead
incandescent lamp in series with the antenna
input and the RF board input.  It is marked 
as DS1 on the RF unit schematic, page 8-2, of
the service manual.  Interestingly, it is not
detailed in the parts list.  

I had one damaged and froma collection of small
similar looking lamps, I picked one with the 
lowest filament voltage and soldered it in the
circuit.  Worked fine.

73
Sheldon
WA4MZZ

----- Original Message -----
From: "Gary P. Fiber" <gfiber at comcast.net>
Date: Wednesday, February 9, 2011 10:04 pm
Subject: Re: [ICOM] is there some sort of protector on the RX ANT, input of a	756 Pro?

> I am not sure of the newest Icom products, but I can tell you the 
> earlier radios, IC-745, 751 / A, 761. 765, 781.... NONE of them 
> had any 
> sort of protection in the receiver input.