[TowerTalk] ICE 419B schematic

[James C. Hall, MD]

Hi David:

Thanks for the reply. I could deconstruct one set of them and basically
'reverse engineer' the thing. I can get the capacitor values, of course, off
the component itself. I wonder if a pair of half value capacitors in
parallel with high voltage ratings would improve the 'survivability' of
these capacitors ? Recently I had to deal with a blown 8.215 MHz trap on my
K3 after Field Day. Both the inductor and capacitor were fried from loading
into a not-too-matched load on RTTY. I heavier duty toroid and a pair of
capacitors in parallel were supplied to replace these components. The fried
capacitor had a 1.6 kV rating.

It appears I need a decent LC meter as well.

73, Jamie
WB4YDL 

-----Original Message-----
From: towertalk-bounces at contesting.com
[mailto:towertalk-bounces at contesting.com] On Behalf Of K1TTT
Sent: Monday, July 18, 2011 5:27 PM
To: towertalk at contesting.com
Subject: Re: [TowerTalk] ICE 419B schematic

I just had to repair the 10m and 20m sections on my 419b.  The capacitors
had apparently changed value enough that those sections were really bad.  I
just bought replacements for all the values on those 2 from digikey and
replaced them all... Now its working fine again.  There isn't much else that
could go wrong except for bad relay contacts.


David Robbins K1TTT
e-mail: mailto:k1ttt at arrl.net
web: http://www.k1ttt.net
AR-Cluster node: 145.69MHz or telnet://dxc.k1ttt.net
 

> -----Original Message-----
> From: James C. Hall, MD [mailto:heartdoc at nwtcc.com] 
> Sent: Monday, July 18, 2011 21:29
> To: towertalk at contesting.com
> Cc: tcg1 at googlegroups.com
> Subject: [TowerTalk] ICE 419B schematic
> 
> 
> Hello:
> 
>  
> 
> I sent an email to ICE inquiring about their ability to 
> repair my ICE 419B's
> which have a couple blown filters. I got a response that 
> since Mike died,
> they can't repair anything right now.
> 
>  
> 
> I asked about a schematic of these 2-stage filters and they 
> came back with
> 'they don't have them either', which I found rather strange. 
> At any rate,
> does anyone have a schematic or parts list of the 419B so 
> that I may attempt
> to fix them myself ?
> 
>  
> 
> This may or may not be the correct forum to send this, so if 
> not, please
> advise and I'll redirect this.
> 
>  
> 
> Thanks.
> 
>  
> 
> 73, Jamie
> 
> WB4YDL
> 
> _______________________________________________
> 
> 
> 
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> 


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