[Yaesu] XF-112C filter

[David Robbins]

Two examples on the schematics show 30pf to ground on the input and output
of the crystal, and both show resistor attenuation networks with different
resistor values, those might be chips on the bottom.

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


-----Original Message-----
From: Yaesu [mailto:yaesu-bounces at contesting.com] On Behalf Of Earl Morse
Sent: Saturday, March 07, 2015 15:29
To: Tom Osborne
Cc: yaesu at contesting.com
Subject: Re: [Yaesu] XF-112C filter

Sounds like a capacitor.

Here's the photo showing the part.  If I wasn't color blind I would tell you
the value for sure.

http://forums.qrz.com/showthread.php?425409-YAESU-FM-747-amp-XF-112C-FOR-FT-
840-and-others

Here's the color code.

http://www.smartdraw.com/examples/content/examples/10_engineering/engineerin
g_diagrams/basic_capacitor_color_code_diagram_l.jpg

Earl
N8SS

--- w7why at frontier.com wrote:

From: Tom Osborne <w7why at frontier.com>
To: yaesu at contesting.com
Subject: [Yaesu] XF-112C filter
Date: Fri, 06 Mar 2015 20:26:39 -0800

Hi All

I have a XF-112C filter that I took out of an FT-840.  In doing so, I broke
the part that is labeled 'C02'.  It looks like a small diode.  Is that what
it is?  I can't find the schematic anywhere on the 'net for the filter.
Thanks and 73 Tom W7WHY _______________________________________________
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