|
Tubes Asylum Questions about tubes and gear that glows. FAQ |
|
|
|
Tubes Asylum Questions about tubes and gear that glows. FAQ |
|
In Reply to: To TnT: Your Fuse Blowing Response posted by BamaCraig on September 2, 2003 at 04:58:44:
HI Bama,
This may be a problem with the amp also. I have been working with, modifying, upgrading, repairing the Jolida amps for several years and have come across this in the past.
One possibility is that you could have bad grid resistors (opening when they get too hot) which would cause exactly what you describe. I know this because I had forgotten to install them once and my tubes looked like you could see them from the moon.
Another possible is something in the power supply. This is more far fetched as it would cause a continuois problem and not every few months.
Last possibility.....bad Svetlana tubes. I've been there many times but mostly with their EL34s and not with the 6550. Are you using new tubes are older pieces you had lying around.
Last question (I know it's simple but you would be amazed of how many people overlook this). Do you have the bias set properly and have you been checking it when the tubes start to get hotter than usual? i.e., starting to glow. I always run the bias at about 46/47mV on the 502.
Happy Listening,
Bill
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- Re: To TnT: Your Fuse Blowing Response - Response34 09:41:59 09/02/03 (1)
- Followup - Response34 09:57:08 09/02/03 (0)
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2024, Audio Asylum, all rights reserved ]
