[Drake] Electrolytic Caps inside TR-4C?

[Jeramy Thibodeaux]

Hi Dave,

If you look at the bottom of C145 you will notice that there are four tabs 
in the middle of the capacitor with wires connected and three or four tabs 
around the outside edge that are bent over and soldered directly to the 
chasis.  Upon closer inspection of the bottom of the multi-section capacitor 
that you will also see that three of the four tabs in the middle have 
markings (half circle, square, and triangle).  The fourth tab isn't marked. 
The wires connected to each one of these tabs will get connected to the 
positive end of the replacement capacitor for that section.  The negative 
end of the capacitor needs to be attached (soldered preferred) to chasis 
ground.  The following should be helpful.

C145
40uF half moon
80uF square
10uF triangle
10uF no marking

It's pretty tight in there.  Good luck and I hope this helps!

Jeramy
kg4azt



If you look closely at the bottom Connect the wires


----- Original Message ----- 
From: "David Walker" <vk2na at bigpond.com>
To: <drake at mailman.qth.net>
Sent: Friday, January 08, 2010 11:20 PM
Subject: [Drake] Electrolytic Caps inside TR-4C?


> Hi all,
>
> I need to replace the electrolytic caps C135, C145A, C145B, C145D.  C145
> is a multi cap can inside the TR-4C near the PTO.  I intend to
> disconnect the individual wires to this can and repost the wires to new
> individual caps I have purchased.  I cannot quite figure out which legs
> belong to which capacitor.
>
> Can anyone give me some guidance?
>
> Regards,
>
> Dave
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