[Hallicrafters] HALLICRAFTERS S-77

[Jim Wilhite]

This is a basic question but I have seen several situations that it applied.

Sometimes component placement is the problem.  Did you put everything back 
as you found it?  Especially any wires or bypass caps and such.  I have seen 
this type of thing when replacing capacitors components must be moved to 
reach connections of those needing replacement then the components that were 
moved were not put back.  That caused hum in the output.

Jim
W5JO

-----Original Message----- 

GOOD  MORNING GROUP HAVE A TECHNICAL QUESTION
I HAVE CHANGED OUT THE CAPS AND IT  HAS MADE A VAST IMPROVEMENT
THERE IS ONE ISSUE THAT SEEMS TO REMAIN
WITH  THE VOLUMN CONTROL TURNED DOWN THERE IS A LOW VOLUMN HUM COMING
FROM THE  BUILT IN SPEAKER
ANY IDEA'S?

AND THERE WERE 2 CAPS WRONG IN THE  HAYSEED KIT
THERE IS A ,05 MF MISSING AS WELL  AND THEY GAVE ME  A  .0047 MF
AND THE CORRECT VALUE SHOULD HAVE BEEN .047

A  SIMPLE CORRECTION

MORE INTERESTED IN THE HUM

THANKS SCOTT  W4SO