Elecraft K2 RF board

[Rick-94]

Hi all, I am working on assembling my K2 and for component C73, 47uf,
all I have in my kit is a yellow colored cap that has 470 on one side &
330 on the other side. My manual shows a disc type. Some other pics I
have seen show a blue colored cap. I have no means of testing capacitance.
Rick
KC9LDP
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[vk2rq]

C73 should be 47pF, not 47uF, in which case, the marking "470" would mean the capacitor in (in pF) 47 followed by no zeros.
In the manual, it shows that for that group of capacitors, it could be a disc ceramic type OR a monolithic. Most likely it will be monolithic, either yellow or possibly blue.
Not sure why the part you mention has 330 on one side and 470 on the other. One helpful reason to do an inventory at the start is to help work out through a process of deduction/elimination how to interpret the markings in cases where there is ambiguity. Maybe if you posted a closeup picture of both sides we would help identify the part.
73, Matt VK2RQ

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On Sat, Feb 27, 2016 at 9:04 AM -0800, "Rick A." <[hidden email]> wrote:










Hi all, I am working on assembling my K2 and for component C73, 47uf,
all I have in my kit is a yellow colored cap that has 470 on one side &
330 on the other side. My manual shows a disc type. Some other pics I
have seen show a blue colored cap. I have no means of testing capacitance.
Rick
KC9LDP
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[Don Wilhelm-4]

Rick,

Look at that capacitor carefully under good light and magnification.  
See if that "330" isn't really "33G".  If so, it is the 47pF that you seek.
If it is marked "470J" then it is for certain the 47pF.

Sort your capacitors.  You should have 4 33pF and 4 47pF.  Once you have
them all sorted and can compare the markings, it should become obvious.
The manual may show a disc type, but the type of capacitors has changed
to mono in many cases.  The color of the capacitors has changed over
time too.

One thing I can tell you is that you have a 2.2pF capacitor that is now
labeled "229" - the '9' indicting that the decimal should be moved to
the left by one place (9 is a negative 1).  That 2.2pF capacitor used to
be a disc ceramic too, and is likely shown that way in the manual.

Sorry that this is confusing, but component procurement is getting more
and more difficult as the industry moves to surface mount, and the
sources of thru hole components is drying up.

73,
Don W3FPR

On 2/27/2016 12:03 PM, Rick A. wrote:

> Hi all, I am working on assembling my K2 and for component C73, 47uf,
> all I have in my kit is a yellow colored cap that has 470 on one side
> & 330 on the other side. My manual shows a disc type. Some other pics
> I have seen show a blue colored cap. I have no means of testing
> capacitance.
> Rick
> KC9LDP
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]
>

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