https://guitarnoise.forum/live-sound/tube-replacement-questions-from-a-beginner/ Guitar Noise Discussion Board en-US Thu, 04 Jun 2026 18:17:53 +0000 wpForo 60 https://guitarnoise.forum/live-sound/tube-replacement-questions-from-a-beginner/paged/2/#post-186321 Wed, 28 Jun 2006 22:44:45 +0000
One thing you could do is to add a cab and some sort of jack so that you can cut out the internal speaker when you plug into that jack. I've been thinking about doing this to my Galaxie 10 -- basically, build a small 1x12 cab and use it as an external speaker. But, I've been following the "why break it when it's not .." policy :-)]]> Live Sound vink https://guitarnoise.forum/live-sound/tube-replacement-questions-from-a-beginner/paged/2/#post-186321 https://guitarnoise.forum/live-sound/tube-replacement-questions-from-a-beginner/#post-186102 Wed, 28 Jun 2006 01:09:49 +0000
On my HRD it was really pretty easy. I removed the six screws that held the head and pulled it out. This gave me clear access to the speaker which was held in by four screws. The speaker terminals were clip on, I did have a little trouble pulling one off. But the old speaker came right out, and the new Celestion fit perfectly. Took seconds.

But then the hard part...

I did have a little trouble getting the head back in. It was an extremely tight fit. There was shielding tape on the inside of the cab, some of this tore and doubled back. Took a minute or two, but I got the head back in and was able to push the tape pretty much back where it had been. But if I sent my amp in under warranty they would know I was in there because of the torn tape. I used a long punch to line up the chassis with the screw holes in the cab, put the screws back.

Took me about 30 minutes total. But I went real slow. Other than the super tight fit of the head, it was really easy. I'd do it again no problem.]]> Live Sound Wes Inman https://guitarnoise.forum/live-sound/tube-replacement-questions-from-a-beginner/#post-186102 https://guitarnoise.forum/live-sound/tube-replacement-questions-from-a-beginner/#post-186038 Tue, 27 Jun 2006 20:13:34 +0000

For sure, speakers make a far bigger tonal difference than tubes. Or pickups.]]> Live Sound Ricochet https://guitarnoise.forum/live-sound/tube-replacement-questions-from-a-beginner/#post-186038 https://guitarnoise.forum/live-sound/tube-replacement-questions-from-a-beginner/#post-185965 Tue, 27 Jun 2006 12:19:18 +0000 http://upload4.postimage.org/487465/Alamo_Back.jpg
As you can see, the speakers are situated behind the chassis - to get them out, you need to take the chassis out (otherwise you have no access to the screws at the top of the speaker.
As far as I can tell, the Epi Valve Junior is very similar.
http://upload4.postimage.org/487518/ValveJunior_Back.jpg
You may also be unlucky and have a new speaker that has screw-holes set differently to the old speaker.
Apart from those problems, the speaker only has two connections to desolder and resolder.]]> Live Sound greybeard https://guitarnoise.forum/live-sound/tube-replacement-questions-from-a-beginner/#post-185965 https://guitarnoise.forum/live-sound/tube-replacement-questions-from-a-beginner/#post-185951 Tue, 27 Jun 2006 07:11:40 +0000 Live Sound duffmaster https://guitarnoise.forum/live-sound/tube-replacement-questions-from-a-beginner/#post-185951 https://guitarnoise.forum/live-sound/tube-replacement-questions-from-a-beginner/#post-185924 Tue, 27 Jun 2006 03:48:49 +0000
As far as recommending JJs, I had originally read where some customers were very happy with the improvements these tubes made to the drive channels on the Hot Rod Deluxe. I liked my HRD stock, but the Drive channels were a little boomy and muddy. I wanted spare tubes anyway because I gig, so I took a chance on these tubes. The prices were very good as well.

And these ECC83Ss really did improve the Drive channel on my HRD. They also rolled off just a little of the highs as well. My HRD could be ice-pick piercing. So I liked this too.

But I am in no way saying these are the greatest tubes out there. I wouldn't have any way of knowing, I have only experimented with a few makes of tubes. But they were good, the price was right, and the service was great. So I would recommend Eurotubes to anyone looking for tubes.

I also fully retubed my Marshall DSL401 with JJs. I am even happier with the improvement these tubes made to my Marshall than my Fender. My clean channel is far louder and absolutely beautiful tone now. I cannot say enough how pleased I am with that. The overdrive channels sound really good too. Very thick and full sounding.

I also changed the speaker in my HRD just for experimentation. I put in a Celestion G12T-75, the speaker Marshall uses in many of it's cabs. I was looking to get more big bass, but controlled, out of my HRD. And it really seems to have worked. The amp has a little more of a Rock tone now as opposed to Blues. I have really been happy with this speaker. I have thought of trying a Vintage 30 as well, they are a great and famous speaker.

But changing the speaker had a far more dramatic change than tubes.

I also have to admit that I just plain like experimenting with my amp. It is fun to swap tubes and speakers and listen to the results. :D]]> Live Sound Wes Inman https://guitarnoise.forum/live-sound/tube-replacement-questions-from-a-beginner/#post-185924 https://guitarnoise.forum/live-sound/tube-replacement-questions-from-a-beginner/#post-185812 Mon, 26 Jun 2006 18:27:29 +0000 Live Sound quarterfront https://guitarnoise.forum/live-sound/tube-replacement-questions-from-a-beginner/#post-185812 https://guitarnoise.forum/live-sound/tube-replacement-questions-from-a-beginner/#post-185756 Mon, 26 Jun 2006 11:44:30 +0000 http://www.angelfire.com/blues/rockinjohn/skylark_ga_5.html]]> Live Sound greybeard https://guitarnoise.forum/live-sound/tube-replacement-questions-from-a-beginner/#post-185756 https://guitarnoise.forum/live-sound/tube-replacement-questions-from-a-beginner/#post-185746 Mon, 26 Jun 2006 09:33:10 +0000
Things are a lot clearer now!
You know perhaps I got confused with the power and preamp tubes, but this is what stands right in the manual...

"The preamp and power stage signal paths are both 100% tube. The combination of a single ECC83/12AX7A based power amp and a single 6BQ5/EL84 based preamp yields 5 watts RMS output."

I'm not planning to change the tubes any time soon, it was just a general question I never thought about since it wasn't necessary.
If it's time to replace anything I'll probably go and take it to the shop where I got it.

Thanks again!]]> Live Sound VampireKiller https://guitarnoise.forum/live-sound/tube-replacement-questions-from-a-beginner/#post-185746 https://guitarnoise.forum/live-sound/tube-replacement-questions-from-a-beginner/#post-185699 Mon, 26 Jun 2006 04:43:41 +0000
I'm kinda old fashioned and out of step with the heavily tube-salesmen-influenced guitarists of today, but I don't replace a tube till it's not doing its job right and I also don't believe that there are certain brands of tubes that have "The Sound" while others don't.]]> Live Sound Ricochet https://guitarnoise.forum/live-sound/tube-replacement-questions-from-a-beginner/#post-185699