I've been considering a design for an amp that is so over the top that it might be completely useless. My idea is inspired by the Mesa Mark Coliseum 300. The coliseum 300 used six 6L6 output tubes and was rated at roughly 180watts.

I was thinking of doing a similar design but using 807s instead of 6L6s. The 807s have similar specs to the 6L6 but they're transmitting tubes that can take 600 V on the plates. I think I could get 250 - 300 watts.

For the cabinet I would use two 15" speakers mounted back to back.

I'm thinking the total weight would be around 150lbs. It'll definitely have casters.

To be honest I'd never actually build such a monstrosity but if it keeps tickling my brain I might at least come up with a schematic...then a layout...then a parts list....

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In my opinion Leo Fender had essentially perfected the guitar amplifier by 1964.

Cool.

Wondered if Suzuki still makes the #122s :

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you can save the world with your guitar one love song at a time it's just better, more fun, easier with a fender solid body electric guitar or electric bass guitar.

Hmmm... A plexiglass cabinet?

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In my opinion Leo Fender had essentially perfected the guitar amplifier by 1964.

wiki - Leslie speaker.
If I could make a cabinet, but if Suzuki, owner of the Leslie brand, still makes them that would be easier.
Your cabinet idea is cool still.

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you can save the world with your guitar one love song at a time it's just better, more fun, easier with a fender solid body electric guitar or electric bass guitar.

Hi mhowell: wow, amp and matching forklift truck - I like it!

You didn't actually mention the forklift truck bit yet, but I know it's coming.

Good luck with that circuitry.

Cheers - C

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Take a look at the Fender Studio Bass amp, a massive combo: (6) 6L6's, (3) 12AX7, 12AU7, 12AU7, 15" speaker, 200 WATTS,
and a whopping 101 lbs....it's a b*tch to move even with the casters.


[

My Dual Showman Reverb head with 2 6L6 at 100 watts is 70lbs by itself and the 2X15 cab that went with it was 110lbs. You do the math. The beast you want to make I'm sure would weigh in close to this.

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...I for one, sure would appreciate the return of intelligent conversation, spirit of assistance and the simple yet effective ignoring of those who can't seem to hang with that...
Best regards,
rob

Maybe I'll build it as a head only. I'll arrange the tubes in a circle and call it Stonehenge.

Wonder how that'll affect parasitics?

Here's an 807. I love the top caps but it's definitely not for consumer electronics.

I've been told they sound pretty good.

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In my opinion Leo Fender had essentially perfected the guitar amplifier by 1964.

Looks like somebody beat me to the punch - at least as far as the amp it concerned. My vision was not nearly as complicated.

Dogzilla

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In my opinion Leo Fender had essentially perfected the guitar amplifier by 1964.

That's tight!

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...I for one, sure would appreciate the return of intelligent conversation, spirit of assistance and the simple yet effective ignoring of those who can't seem to hang with that...
Best regards,
rob

How about 1000watts?

That amp uses 4 813 transmitting tubes. See the comparison to KT88s. The KT88, on the left, is considered a 6L6 on steroids but it's a mini compared to the 813.



2500V on the plates!

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In my opinion Leo Fender had essentially perfected the guitar amplifier by 1964.

How about this one?

http://www.positive-feedback.com/Issue28/kronzilla.htm



This is my friend Brad showing a Kronzilla T1610 tube.

Cheers

David

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"Humans think they are smarter than dolphins because we build cars and buildings and start wars etc...and all that dolphins do is swim in the water, eat fish and play around. Dolphins believe that they are smarter for exactly the same reasons."

Can you imagine the heat that sucker generates?

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Good Vibes To Y'all!



Screamin' Armadillos
Texas Roadhouse Music
Guitar/Slide Guitar/Harp/Vocals

Yikes! I never heard of the T1610 before. I did a search and it is amazing. One place is selling them for $2499. Another site says they were designed specifically for audio.

Thanks for sharing this.

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In my opinion Leo Fender had essentially perfected the guitar amplifier by 1964.

I didn't think this would get to where guys are wippin' 'em out and comparing sizes.

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...I for one, sure would appreciate the return of intelligent conversation, spirit of assistance and the simple yet effective ignoring of those who can't seem to hang with that...
Best regards,
rob