[Elecraft] K2 parts question

2010-01-28 Thread lstavenhagen

Hi all,

Ok, I've called the parts inventory good, except two parts for the RF board
that I couldn't quite figure out and made a guess that they were right. But
not sure:

C33 - this part is listed as a 2.2pf cap which should have a label 2R2 or
2 according to the parts list. I could only find a small disk cap with
what looked like 2.2 on it, not 2R2 or 2. Is that the correct part?

C22 - the Value column just has pf), the description says it should be
labelled 2R7, 3, 3.3, or 3R3. In the end I could only find a small
blue cap with 2.7 on it leftover and assumed this was C22. Is this right?
The schematic shows a 3.3pf cap here...

What say ye folks?

Thanks es 73,

LS
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Re: [Elecraft] K2 parts question

2010-01-28 Thread Don Wilhelm
LS,

Small capacitors are marked in several ways it may have the actual value 
expressed as a decimal, such as 2.2 or there may be an R in place of 
the decimal point, such as 2R2.  It is all the same.  How they are 
marked depends on the manufacturer, and is subject to change from time 
to time.

C33 can be 2 pF, 2.2 pF (also marked with 2R2 - same thing)
C22 can be 2.7 pF, 3 pF or 3.3 pF - the decimal point may be replaced 
with an R in any of these.

It seems you have the correct capacitors located.

73,
Don W3FPR

lstavenhagen wrote:
 Hi all,

 Ok, I've called the parts inventory good, except two parts for the RF board
 that I couldn't quite figure out and made a guess that they were right. But
 not sure:

 C33 - this part is listed as a 2.2pf cap which should have a label 2R2 or
 2 according to the parts list. I could only find a small disk cap with
 what looked like 2.2 on it, not 2R2 or 2. Is that the correct part?

 C22 - the Value column just has pf), the description says it should be
 labelled 2R7, 3, 3.3, or 3R3. In the end I could only find a small
 blue cap with 2.7 on it leftover and assumed this was C22. Is this right?
 The schematic shows a 3.3pf cap here...

 What say ye folks?

 Thanks es 73,

 LS
   
 


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Re: [Elecraft] K2 parts question

2010-01-28 Thread lstavenhagen

Ok, thanks Don and everyone who's responded.

Even tho it's taken two days to do the inventory, it's been a highly
educational 2 days which I consider an integral part of the whole
educational experience I'm intending to have doing the kit. That's probably
reason #1 I've decided to do the Elecraft, right behind #2 which is to end
up with a really good CW rig ;). So I'm glad I've done it. Tho I think I
will skip the Misc. bag inventory, since with a 100% completion rate so far
that's probably a safe bet ;)

Looks like I'll be able to start the build this evening, so i'm sure to post
more questions as I go along.

PS, looking at the boards and components I'm sure glad I got the suggested
1/32 tips for my iron as well as the .02 solder wow, those are some
tiny parts!

But I'm having fun already!

73,
LS
W5QD
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[Elecraft] K2 parts question

2007-12-12 Thread Mike, W9QS
Hello to the group.

This is my first post.  I'm assembling a K2 serial
number 6327.  All is well and I'm working on section 3
of the RF board.  I have a question about Q6.  The
parts list as a number of C2166 but mine is a C5739P. 
Is this a direct replacement or do I have the wrong
part.  

This is the first problem I've encountered and this
kit is the best by far I've ever built.  (I go back to
the '50s first kit was a Heatkit AT-1)



Mike, W9QS


  

Never miss a thing.  Make Yahoo your home page. 
http://www.yahoo.com/r/hs
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Re: [Elecraft] K2 parts question

2007-12-12 Thread Don Wilhelm

Mike,

Go ahead and use the 2SC5739 at Q6.  This is a replacement for the 2SC2166.
The changes to RoHS compliant devices can be blamed for the confusion.

73,
Don W3FPR

Mike, W9QS wrote:

Hello to the group.
Mime-Version: 1.0
Content-Transfer-Encoding: 8bit
Content-Type: text/plain; charset=iso-8859-1

This is my first post.  I'm assembling a K2 serial
number 6327.  All is well and I'm working on section 3
of the RF board.  I have a question about Q6.  The
parts list as a number of C2166 but mine is a C5739P. 
Is this a direct replacement or do I have the wrong
part.  


This is the first problem I've encountered and this
kit is the best by far I've ever built.  (I go back to
the '50s first kit was a Heatkit AT-1)



Mike, W9QS

  

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Re: [Elecraft] K2 parts question

2007-12-12 Thread David Pratt

In a recent message, Mike, W9QS [EMAIL PROTECTED] wrote ...

This is my first post.  I'm assembling a K2 serial
number 6327.  All is well and I'm working on section 3
of the RF board.  I have a question about Q6.  The
parts list as a number of C2166 but mine is a C5739P.
Is this a direct replacement or do I have the wrong
part.


Yes, Mike, this same question was asked a few months ago and it seems 
that the 2SC5739 is now being supplied in place of the original 2SC2166 
for Q6. It is evidently an improved version. You definitely have the 
right part.  Good luck with the rest of the K2. It'll soon be on the 
air.



This is the first problem I've encountered and this
kit is the best by far I've ever built.  (I go back to
the '50s first kit was a Heatkit AT-1)


Like many of us on here, Mike. You have evidently caught the Elecraft 
bug and there'll be no stopping you with other mojo kits from Elecraft.


73
--
David G4DMP
Leeds, England, UK
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