Help! My 5U4 Rectifier Tube went out

While admiring my Cary amp I noticed one of my 2 rectifier tubes isn't glowing. It doesn't appear to have had an effect on the sound. I'm still hearing music out of both channels. Am I risking any damage to my amp if I continue to play music? Are these tubes like kidneys? In other words it's better to have 2 but one's ok? It will be several days before I can get a replacement tube shipped to me and I can't bear the thought going without music for a week

Thanks in advance...

Chris

 

Weird. So even though it's cold to the touch it's still working? I guess it must be. Back to my DCC Pet Sounds then

 

Yep. It's completely cold to the touch. It's a Cary SLI-80 I got from Upscale Audio. I'll try to find a diagram...

 

http://www.caryaudio.com/products/audio/sli80.shtml

This is my amp but I don't think there is a diagram of the unit on the web.

 

Plays fine in both channels without it. Carol K is shaking my walls.

 

It out and it's playing fine.

 

It says 5U4 on the tube and they came from Upscale Audio so I'm sure that's what they are. I waiting for my amp to cool so I can switch the tubes. I really appreciate your help Steve! Back in a minute...

 

OK. I put them in reverse order. The tube that didn't light up is now in the other (right) channel and it still plays fine out of both channels So we know that the tubes are fine but something else has gone awry?

 

A 5U4 is a diode, right? I'm kinda on decongestants, so forgive me.

Unless a SS diode is replaced in there and YOU don't know about it, that's impossible. There would be no powah like Steve said.

 

Yes. It lights up. Must be the socket but both channels somehow play fine.

 

now thats a mystery!

 

Correct.

 

I don't think so. I bought it new from Kevin at Upscale Audio and I haven't done anything to it since then.

 

Kinda spooky!

 

Your amp is Christine.