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| Re: R-179 car saga... The entire fleet is Out of Service! AM rush hour...haha (1534803) | |||
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Re: R-179 car saga... The entire fleet is Out of Service! AM rush hour...haha |
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Posted by zac on Thu Jan 9 09:38:34 2020, in response to Re: R-179 car saga... The entire fleet is Out of Service! AM rush hour...haha, posted by Train Dude on Thu Jan 9 08:13:18 2020. I still use tube audio and it is pretty well known among the tube gear users that it is the socket-pin interface that causes 99% of the problems that people have, not the tubes themselves nor the circuits. The connection oxidizes and the sockets loosen over time and repeated insertion. Since audiophiles are notorious for never leaving their stuff alone and always tweaking, they are always swapping tubes, which causes them to loosen, and then when issues like popping occur, they think they have a bad tube, which leads to more swapping. But the act of swapping will solve the problem sometimes by making a good contact, except it doesn't last and a week later you have the same problem. On and on it will go until you take care of the real problem which is to deoxidize the socket and pins, and bend the pins to account for the loose socket. Guitarists don't tweak as much so tube guitar amps don't have as many problems even though they are pressed a lot harder.Before the internet, only service people really knew this and would take advantage of the easy fix and also clean out the insides of dust but would charge as if they did a full rebuild. Cleaning volume knobs and switches also had a similar result and they would do that too. It wasn't so much they were padding the bill but the minimum charge would more than cover it. |
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