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Old 05-14-2010, 11:26 PM
Patnukem Patnukem is offline
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Join Date: Jun 2007
Posts: 60
Wow the B+ was about 45VDC too high on all of them. Would this be from something not putting a big enough load on it or is it drawing too much of a load, or is it something in the power supply area causing these numbers to be high? well at least I kinda know whats wrong now it makes it easier to fix

Also would it be possible to make a solid state rect. to use while repairing so I do not kill my 5u4 tube I would hate to have to buy a new one, I was looking around and found this http://www.k6may.com/CollinsTip2.shtml and wanted to give it a try. I have a ton of the 1N4007 diodes and a base from a broken 5u4 I also have a resistor to put in there. I was thinking of starting off with a 300Ω 2 to 5 watt depending on what I have in the parts box.

My schematic now

and how it would look if I did this just to make sure I set it up correctly?


R88 was at one time replaced with a regular resistor I did not notice it until now so I will replace it with a wire wound one.

One last thing I was looking at your pictures bandersen, and they were a big big help I took some before pictures to reference and troubleshoot and I am very glad I did, I realized the thing i "fixed" moving R66 to the other side of the Horz. Lin. coil as in the schematics was wrong, R66 appears on the opposite side then the schematics in your set, from what I can see in the pictures, as well as mine before "fixing it"

I hope to get these bugs fixed tomorrow.

Last edited by Patnukem; 05-15-2010 at 03:53 AM. Reason: added a question at the end.
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