K3 Assembly, Resistance Checks

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K3 Assembly, Resistance Checks

Walter V. Gilles
Greetings,
 
K3/100 assembly in work.  I just did the four resistance checks that verify the power buses are not shorted to ground.  All R measurements exceeded the minimums specified.  However, that kind of leaves a big range of what constitutes "nominal" values.  Can anybody provide what are typically nominal values for these?  Below are what I measured on my particular K3 with respect to minimums required.
 
1. 12VDC IN connectors.  Required: >50K ohms   Measured: >20M ohms (out of range)
 
2. Between R36 (test point) and ground.  Required: >150 ohms   Measured: 234 ohms.
 
3. Between U12 (test point) and ground.  Required: >500 ohms   Measured: 4.8K ohms.
 
4. Between U13 (test point) and ground.  Required: >150 ohms   Measured: 423 ohms.
 
Thanks much.  Any advice appreciated.
 
Walter, N0DZJ


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Re: K3 Assembly, Resistance Checks

S Sacco
You are fine.

Fire it up.

73,
Steve
NN4X


On Wed, Jan 21, 2009 at 10:04 PM, Walter V. Gilles <[hidden email]> wrote:
Greetings,
 
K3/100 assembly in work.  I just did the four resistance checks that verify the power buses are not shorted to ground.  All R measurements exceeded the minimums specified.  However, that kind of leaves a big range of what constitutes "nominal" values.  Can anybody provide what are typically nominal values for these?  Below are what I measured on my particular K3 with respect to minimums required.
 
1. 12VDC IN connectors.  Required: >50K ohms   Measured: >20M ohms (out of range)
 
2. Between R36 (test point) and ground.  Required: >150 ohms   Measured: 234 ohms.
 
3. Between U12 (test point) and ground.  Required: >500 ohms   Measured: 4.8K ohms.
 
4. Between U13 (test point) and ground.  Required: >150 ohms   Measured: 423 ohms.
 
Thanks much.  Any advice appreciated.
 
Walter, N0DZJ


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Elecraft web page: http://www.elecraft.com


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Re: K3 Assembly, Resistance Checks

AC7AC
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