Building tube poweramp

[fdesalvo]

Here's the deal, fellas. I have simplified my touring stage rig and have left the Boogie/JSX heads and ginormous pedal board home for my overseas touring. I am now bringing my PodXT Live for obvious reasons.

I am looking to build a diode rectified tube power amp in the 120-200w range to amplify my PodXT Live. I want clear and transparent power with balls, so maybe I am describing the power section of a bass amp? Whatever it is must be able to crank without breaking a sweat.

Are there any good schematics out there of suggestions from you guys as to what I am after in terms of tube selection? I'm thinking a quad of KT88s would pull off the job. Any opinions of thoughts on the matter?

By the way, the damn PodXTL is an amazing piece of gear once you have it dialed in. The presets are horrendous, but once you get into deep editing, you can have any tone you want with no digital artifacts in your sound. More importantly to me, you can ever capture the feel of what you are modeling.

..for a guy who has to endure 17-25 flights/tour this is a Godsend.

Best Regards,

~F

[Alexander]

Hey Frank-

All you likely need is a Twin Reverb power section with an input level control.
You could even (non-permanently) mod an old Showman head; Mojo sells a relacement Twin OT with 4,8 ohm taps. Also multi-voltage PT's are available too. What cabs do you want to power? If you're using efficient speakers 100W is PLENTY to drive one or two cabs no matter what they are.

If you have the time to invest in a new build, great! but a Showman head is already very close to the solution to your problem.

now lose that extra unneccessary kidney and you'll be even happier :-)

Alexander
Retrodyne Amplification
2003 kidney donor, livin' large & mountainbiking all the time!

[Satamax]

http://cgi.ebay.fr/ws/eBayISAPI.dll?...ADME:B:SS:FR:1

Something like dis????

[tubetonez]

Another plug & play solution is the Peavey Classic tube power amp series, you can find them reasonably priced on Ebay. Were it me I'd grab one and use a pair of cabs for the stereo FX of the PODXT.

http://cgi.ebay.com/Peavey-Classic-S...QQcmdZViewItem

[mooreamps]

I want clear and transparent power with balls

Hmmm, I didn't think there are any more market for the high power stuff. I have a prototype Raptor amp on my bench. I got side tracked prototypeing pre-amps on VJ chassis half way through building it. My solution for this kind of power range was a 140 watt power amp using two RCA 813 Beam Power Pentodes in push-pull. I don't have the print released. Otherwise, there are other layouts out there that use the KT88's as mentioned above.

-g