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Broken Tube Socket (Read 240 times)
thethanimal
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Posts: 52
Broken Tube Socket
03/14/23 at 01:21:57
 
Iíve already emailed Steve, but checking here for feedback too. I removed my 8-pin to 4-pin adapter that lets me run a globe Type 80 rectifier so I could go back to my 5U4G, and the connector for pin 3 came out of the tube socket attached to the adapter. The connector for pin 5 is loose too. Iím assuming this is a tube socket replacement that means shipping back to Decware? When I opened the amp a while back I seem to remember that socket soldered in, and thus beyond my expertise for this amp.
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CAJames
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Re: Broken Tube Socket
Reply #1 - 03/14/23 at 02:12:06
 
I would certainly do whatever Steve suggests, but technically pins 3 and 5 are not used by any rectifier (at least none that I know of) so it is possible you can just keep on keeping on.
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thethanimal
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Posts: 52
Re: Broken Tube Socket
Reply #2 - 03/16/23 at 14:31:26
 
Thanks. That gives me hope, but Iíll keep it plugged until I get word from Steve.
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thethanimal
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Re: Broken Tube Socket
Reply #3 - 03/23/23 at 02:19:07
 
I had the time to pull the bottom off the amp yesterday. You can see on pins of the sockets for the input and power tubes from the inside, but the rectifier tube socket is obfuscated by a PCB that holds the fuses between it and the power transformer. Unfortunately, that leaves me no closer to enjoying my amp again.
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thethanimal
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Re: Broken Tube Socket
Reply #4 - 03/24/23 at 02:26:28
 
You can tell Iíve been preoccupied with work, a clothes dryer repair, and two young kids with consequent sleep deprivation. I just pulled out the iPad to Google rectifier tube schematics while listening with my cheap class D amp, and all schematics for 5U4G, 5AR4, GZ31, and 5Y3GT tube power supplies skip pins 3 and 5. So I went over to just give my 5U4G and 5931 tubes a try in the ampÖ lo and behold! neither tube even has pins 3, 5, or 7!

I am now happily listening to Frank sing to only the lonely.
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