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@contesting.com
[mailto:towertalk-bounces@contesting.com] On Behalf Of K1TTT
Sent: Monday, July 18, 2011 5:27 PM
To: towertalk@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@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@nwtcc.com]
> Sent: Monday, July 18, 2011 21:29
> To: towertalk@contesting.com
> Cc: tcg1@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
>
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
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