Recent Posts

21

Tube Amp Building - Tweaks - Repairs / Re: Standel 25L15-Do you like it as is or would you like to change something

« Last post by shooter on March 11, 2026, 02:12:33 pm »

would that affect the sound that I really like.

just guessing, but..
pretty sure 90% of that sound you like, came from the mans fingers n soul...

22

Tube Amp Building - Tweaks - Repairs / Standel 25L15-Do you like it as is or would you like to change something

« Last post by wsscott on March 11, 2026, 02:08:43 pm »

I've always been a great fan of Chet Atkins, and loved the sound of his Gretsch's and his Standel 25L15 studio amp.  When I was a teenager, they were a rarity, but considered as the Holy Grail where I lived.  So I've recently been thinking of building a replica.  I've found what I think to be is a pretty accurate schematic, and the circuit looks pretty simple.  The amp just has 1 channel, 25 watts, 15" JBL P130 speaker, and Volume, Bass and Treble pots.  I don't play gigs, but I have a couple friends that do, and so I would be building this for the fun of doing it, but also making it available to buddies to use.

So I'm hoping I can get some input from those who own or have used this amp, and can give me some thoughts on things they like, or would like to change or have added to the amp.  It's designed for 807 power tubes, and I've never seen those in an amp.  I've read that 6L6's could be used instead.  But would that affect the sound that I really like.

If it was going to be used by someone who has a studio for an amp that players could use when recording, would it be an attractive addition to the studio, and is there something more that the amp needs or should have that would make it even more attractive for a studio.

Thanks for your comments.

23

Other Topics / Re: Meme of the day

« Last post by shooter on March 11, 2026, 12:40:23 pm »

...

24

Tube Amp Building - Tweaks - Repairs / 5879 amp favorites?

« Last post by mountainhick on March 11, 2026, 10:12:12 am »

There's been many builds here using 5879s. I've been perusing quite a few schematics with jschem.

I just got my hands on a conn strobotuner that I'll repurpose as guitar amp. It's tube compliment is really good, 6x4, a pair of 6AQ5, a 12AU7, a 12AT7 and a 5879. I am happy to use a 6N2P anywhere a 12AX7 would be better.

So wondering about 5879 input stage, perhaps another gain stage, 12AT7 PI etc.

I've built one dual channel amp with one channel a 5879 input into paraphase Gibson GA-40 style, though different power amp. Quite like it. Would like to do something different.

So the range of 5879 designs? I am open to other suggestions. What are your favorites using this tube and why?

Not in any way focused on this, but one idea, wondering about 5879 instead of EF86 for matchless/vox kind of thing.

25

Tube Amp Building - Tweaks - Repairs / MOVED: Options on reparing/ replacing integral baffle?

« Last post by Willabe on March 11, 2026, 08:18:47 am »

This topic has been moved to Cabinets-Speakers.

https://el34world.com/Forum/index.php?topic=33340.0

26

Tube Amp Building - Tweaks - Repairs / Re: Tube ID

« Last post by pbman1953 on March 11, 2026, 07:04:09 am »

Thanks for the help, I'll go with Philips

27

Cabinets-Speakers / Re: Options on reparing/ replacing integral baffle?

« Last post by vintasonic on March 10, 2026, 05:34:00 pm »

So in looking around the internet and trying to find a real site about Gorilla vs Titebond, it seems they are about the same, the Titebond may have a little more holding strength with heavy loads. 

This site seemed to be real info so either should work https://ralphsway.com/gorilla-wood-glue-vs-titebond/

I don't have a glue syringe but I do have some small plastic bottles with metal syringe tips, about 1/2 long.  I may thin the glue a little to help it run down in the layers, then clamp it in a few places.

Thanks for the input, if it fails then I will have to put in a new baffle but I am pretty confident this should work.

28

Tube Amp Building - Tweaks - Repairs / Re: Revisiting Sears Silvertone 1484/85 Piezo Tanks.

« Last post by DummyLoad on March 10, 2026, 04:35:54 pm »

...I can post pictures later if you like...
Greg

Would love to see that work. On that note, I did same when experimenting, if the tank return was closer to the PT, the hum was fairly pronounced, rotated away it was better, but to me, still unacceptable. You resolved that issue with a some added space and fabrication; I'd rather not walk that path, as this amp has the original speaker cabinet, and the head stows in the bottom of speaker cabinet. I suppose that I could modify the cabinet's back panel to accommodate a taller head cabinet, but I'd rather keep as much stock as possible.

--Pete

29

Tube Amp Building - Tweaks - Repairs / Re: LOW Output from 50's GA20

« Last post by Yeatzee on March 10, 2026, 03:34:21 pm »

Almost 9w clean with a 5e3 OT subbed in.

30

Tube Amp Building - Tweaks - Repairs / Re: Revisiting Sears Silvertone 1484/85 Piezo Tanks.

« Last post by SoundmasterG on March 10, 2026, 03:06:39 pm »

With my brother's 1484 that I modified years ago, I added a Fender circuit and reverb driver circuit to the amp, along with a Fender type reverb tank. I mounted it above the amp chassis on a steel plate, and made a new head box for it that is taller. It works fine one way around, but the other way around it makes noise. I can post pictures later if you like. The original reverb tank was missing when he bought it, so that was my solution. Obviously it sounds great as it is basically a Fender BF setup as far as the reverb is concerned.


Greg