|
Tubes Asylum Questions about tubes and gear that glows. FAQ |
|
|
|
Tubes Asylum Questions about tubes and gear that glows. FAQ |
|
In Reply to: Can I use a 5R4GY in an amp made for 5U4G/5U4GB/U52 ? posted by Frihed89 on June 15, 2014 at 05:21:09:
The safe answer is don't do it. The I/P filter cap. limit for a 5R4 is lower than that for a 5U4. Also, the forward drop in a 5R4 is considerably greater than that in a 5U4. A 5R4 drops a whopping 67 V., at the rated 250 mA. of B+ draw.
Simply dropping a 5R4 into a 5U4 "hole" runs the risk of arcing and operating conditions destabilization, due to a B+ rail that's too "short".
Eli D.
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- RE: Can I use a 5R4GY in an amp made for 5U4G/5U4GB/U52 ? - Eli Duttman 07:43:00 06/15/14 (3)
- RE: Can I use a 5R4GY in an amp made for 5U4G/5U4GB/U52 ? - Tom Bavis 10:53:11 06/15/14 (0)
- RE: Can I use a 5R4GY in an amp made for 5U4G/5U4GB/U52 ? - Frihed89 08:21:27 06/15/14 (1)
- RE: Can I use a 5R4GY in an amp made for 5U4G/5U4GB/U52 ? - FenderLover 12:00:25 06/15/14 (0)
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2024, Audio Asylum, all rights reserved ]
