[hpsdr] Munin

[Tom McDermott]

Hi Tony.
 
Here's a couple photos of the suspect area.
000 is a picture of the crater in C27, the second is after replacing C25/C26/C27.
Have not checked for heating in the 4 new capacitors. Would need to setup a fan for the heatsink before starting longer term soak test.
 
https://www.dropbox.com/sh/9tsredh4l7dduv6/gdVyIqC2sl
 
 
-- Tom, N5EG

  

________________________________
 From: Tony Hagen <prosdr at gmail.com>
To: kgshutt at cox.net; tom.mcdermott4 at yahoo.com 
Sent: Friday, January 17, 2014 8:49 PM
Subject: Re: Munin
  


Hi, 

Please do send me a photo of your assembled Board. OH BTW I have not 
installed T5 and all which is marked DNI 

73s
Tony 

From: Tony Hagen  
Sent: Saturday, January 18, 2014 10:01 AM 
To: kgshutt at cox.net ; tom.mcdermott4 at yahoo.com  
Subject: Munin 
 
Hi Ken and Tom 

I am also 
getting identical results with a difference. At 6 metre the capacitors are 
heating. 

I am 
testing in standalone mode with PTT and jumper shorted. I am using a signal 
generator as input to excite. 

Is is 
possible to replicate my test setting at your end at 6 metre continuously with 
at least 10 minutes in PTT mode – keep checking the temperature of 220pf/500v 
capacitor. 

This is my 
2nd munin which I am testing – its not mounted in any enclosure yet so no fan 
yet but I am using two identical heatsink during my test 

73s 
Tony
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