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In Reply to: RE: Yes,it is very easy to do. posted by Michael Samra on September 28, 2014 at 19:46:50
Is there a preferred type of solder for this application?
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Basic rosin core is fine,either 63/37 or 60/40 and you can use the thinner size or medium.Radio Shack has solder.
Honest amplification is better than excessive 2nd order distortion anytime.
I resoldered the large pins on my 300b's this weekend and it definitely improved their sound. I didn't get the best results as the solder wick I used didn't do a great job of cleaning up the old stuff but I did more research and will try again. The new solder went on easily and looks ok. Not perfect but OK.
Here's the thing. I thought I needed a pin resolder as one tube kept cutting out. After the resolder, the tubes sounded better (especially in the highs) but 1 tube continued to cut out and 1 channel was stronger than the other. I swapped cables and tubes to find the problem. At one point, I had my headphones on with music playing and bumped the output selector switch (headphones/preamp). The dead channel came to life. I played with the rotary switch and found I could make the channel go in and out by pressuring the switch. I am guessing it is a dirty contact in the switch or possibly a bad solder joint.
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