Tubes are good investment. The seem to increase in value.:-))
When dealing with a project such as replacing the original tubes in a rig...I agree with Scott--DON'T. If the unit is working, don't fix it.
If you suspect a problem...Substitute a new tube and see if the problem is cured. If not, remove the substitute and go back to the original.
Complete retubing will, in most cases, lead to some unwanted labor...Like a realignment of the unit. Don't attempt the alignment unless you have the proper equipment.
GL es 73,
Jay/AF2C
At 08:39 AM 8/17/04 -0500, you wrote:
"Freeberg, Scott (STP)" <[EMAIL PROTECTED]> made an utterence to the drakelist gang
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I wonder why you are replacing all the tubes in the R4C and T4XC. It will be fairly expensive and its likely you will be replacing a good performing tube with another good performing tube, not counting finals or driver of course. I speak from experience. Back in 1974 when I got back from the war, I was all excited about getting my station back on the air and so I replaced all the tubes in my Hammarlund HQ-180. I've been chuckling about that all these years :))))))
This is my opinion only. I suggest you consider replacing the finals and driver if they are weak. Leave the rest alone other than the hotrod upgrade you're considering. Good luck. The 4C line is incredible.
73, Scott WA9WFA
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