Tube Amp Archive

I have always thought the Fender Narrow Panel style cabs were very cool. Thought I'd use this design as a cab for a Supro 1688TN build. I was thinking all ash, with a natural finish, but my local hardwoods dealer had very little to choose from. So I went with plywood, 3/4" for the cab using blind rabbet joints with Gorilla glue, and 1/2" for the speaker and rear baffles. Covered in a baby blue tolex adhered with Weldwood original contact cement and some hefty ventilation. It will house a Eminence 15" Big Ben speaker.

I've had it assembled prior to covering it and it sounded pretty good. The cleans are - well... clean - and as the volume is brought up the distortion becomes chewy. No metal with this amp, but electric blues to hard rock very doable - what I was aiming for.

Sorry, I posted this in the wrong forum - meant to post in speakers and cabinets.

Very nice work!! That looks really sharp.

Love the color! I've moved the thread to the speakers and cabinets subforum.

~Phil

Impressed...with the cabinet, of course! But your carpet! Good sawdust collection system?

Sawdust, bits of fret wire, solder splash. Wonder what future archeologists will think when they find that rug?

That you were a wood chewing heavy metal worshiper of course.

Very nice looking cab. Please post it assembled too.

Russ

Here it is assembled. I am chasing down some intermittent hash that has emerged in the normal channel. If I were to build this again, I'd skip the normal channel and add in reverb.

And if you use this grillcloth from AES https://www.tubesandmore.com/products/g ... ite/Silver be careful when cutting it to size. The wire shards are like razor blades. I wondered why the cloth was turning red....

That is a great looking build! Nice finish out and attention to details.

Russ

Thank you for the kind comments. My son thinks I need a daphne blue strat w/maple neck to go with it.

Still chasing the hash. What a mess; these terminal strips should be called criminal strips. I have no idea why I used them when I have several eyelet boards laying around .

I'll poke around with the scope and see what I find.

Well I finally got a chance to diagnose the hash, and it turned out it was the guitar . Bridge P/U soldering was a little wonky. Took me a while to find it since I usually play with the toggle switch in the middle position, both P/Us out-of-phase. Once I placed the P/U in the neck position, problem went away. I must have reflowed about a dozen or so soldering joints in the amp with no luck only to find the problem was with the signal generator.

Great job tracking that down! Not an easy task.

I love the color of that cabinet. Very nicely done!

statorvane wrote: ↑Wed Feb 12, 2020 9:45 am Well I finally got a chance to diagnose the hash, and it turned out it was the guitar . Bridge P/U soldering was a little wonky. Took me a while to find it since I usually play with the toggle switch in the middle position, both P/Us out-of-phase. Once I placed the P/U in the neck position, problem went away. I must have reflowed about a dozen or so soldering joints in the amp with no luck only to find the problem was with the signal generator.

Congrats on a great looking cab! I had a similar issue and it was also guitar. A Gibson. I plugged in my strat and a few other guitars and amp was perfect. Its funny how we can sometimes over look the most basic things and think the problem is so much more involved than it really is.

Congrats

Cheers

Guy