When you mean loose base are you talking about the physical connection between the tube and socket or is the tube’s base wiggling, is the glass not cemented to the base ?
Wiggle kt170 base
Hello everyone,
The sound on my tube amp was pretty good with the kt170. But I made a mistake. I took out the 4 kt170s and put in kt120 to understand the differences more. Next day I put back the the kt170 each into their exact slot from before.
There is hissing on the right speaker and a rare medium pop now. The very left kt170 has a very slightly loose base. Does this affect sound? I have no more intention of removing the kt170s if the loose base doesn't affect sound I'm fine to leave as is.
Could you teach me more about this hissy sound? I didn't touch any of the pre-amp tubes and they are all mostly nos. The hiss is softer today than it was yesterday.
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- 9 posts total
If the tube is loose in the socket, one way to address the problem is to re-tension the socked holes as mentioned above. There is an easier way to address the problem I have used several times and was recommended by a distributer: using a very small pair of pliers, gently alternate bending every other tube pin in and the next pin out. Less than a hair is all it takes. |
Changing tubes should not cause clicks, pops or hissing. If the socket is loose, get it replaced or repaired ASAP. And if the tube is what is loose @jetter give perfect advice. |
- 9 posts total