Crack the Code Amp build 1000 Watt Tube Amplifier

[Bass Battalion]

http://www.chambonino.com/construct/const9.html

Hello,

I need some help in determening which Components were used in the construction of the 1000 Watt Tube Amp plus Power Supply

any help much appreciated

 

[Mr. Foxen]

Probably best talking to John Chambers. Mammothsounds who posts here is a mate of his too. He winds his own transformers, so if you want same components, gonna have to ask him anyway. Plus the schematic is there on the page, along with construction notes.

 

[headband]

Be careful with an amp that uses transmitting tubes - very high plate voltage capped to the top of the tube verses under the chassis. Transmitter tube amps can be awesome but were generally shied away from for commercial use due to the increased danger.

 

[Mr. Foxen]

The SVT did OK though.

 

[BassmanPaul]

I need some help in determening which Components were used in the construction of the 1000 Watt Tube Amp plus Power Supply

any help much appreciated

Have you ever built a tube anything??? I'm seriously scared for your safety!!! I've been working with tube electronics since I was around 13 or 14 and I would not even dream of attempting a build of this scope.

 

[B-string]

The SVT did OK though.

Well the first release had it's share of troubles. The output tubes were changed to a non-exposed anode pretty quickly.

 

[Passinwind]

For another approach to a truly BABA, check out this thread. I've played through it and it works well.

 

[JimiLL]

2 band eq?

 

[Mr. Foxen]

2 band eq?

2 band baxandall stack give more adjustment than the 3 knob fender style typical on most amps.

 

[T-Bird]

Hi.

Welcome to TalkBass Bass Battalion.

I need some help in determening which Components were used in the construction of the 1000 Watt Tube Amp plus Power Supply

Probably best talking to John Chambers.

This would be the first thing that comes to my mind as well.

Transmitter tube amps can be awesome but were generally shied away from for commercial use due to the increased danger.

IMO that's not the main reason.
Up to 50KV is pretty easy to do, even safely.

Transmitter tubes in general cost at least 10x what a general power amp tube does and the availability is 1/100th. Or worse.

An added trouble comes from water- or oil cooling, PITA to substitute with anything less messy that has the same heat transfer capability.

I'm seriously scared for your safety!!! I've been working with tube electronics since I was around 13 or 14 and I would not even dream of attempting a build of this scope.

HUGE +1 for what Paul there said.
I was a hair older when I started though.
I also do have a pair of NOS QE08/200H's waiting for the time to design an amp around them (300W PP) and there's an offer for a quartett of TH5186 tetrodes (1,5KW each) still open .

Be safe and have fun.

Regards
Sam

 

[AlexanderB]

There is definitely a market gap concerning 6kW tube amps, T-Bird!

Storage room could be an issue, though. Not for the amp, but for the 20 or so SVT-810 cabinets that you would hook it up to.

 

[CrashClint]

OMG, what a pair!

Of transformers that is.

 

[Mr. Foxen]

Do wonder how the power section overdrive on this sounds.

 

[Bassmec]

Back in the old days we just built up tube bass rigs by adding reliable 200 watt 4XKT88 slave amps.

Thus nothing weighed more than could be easily carried or powered and the ht voltages where kept within reason.

 

[T-Bird]

Hi.

There is definitely a market gap concerning 6kW tube amps, T-Bird!

Storage room could be an issue, though. Not for the amp, but for the 20 or so SVT-810 cabinets that you would hook it up to.

, quite true on both counts.

In all fairness though, that 1.5KW is acchieved with 100KV on the plates.
If I pull the trigger on those babies and eventualy am able to build the damn thing that hounts my imagination, it'll be "only" between 5 and 10KV on the plates.
Plenty of tube power in any case .

Regards
Sam

 

[Mr. Foxen]

Back in the old days we just built up tube bass rigs by adding reliable 200 watt 4XKT88 slave amps.

Thus nothing weighed more than could be easily carried or powered and the ht voltages where kept within reason.

Also, those were wired up to only work with two cabs attached, because no single cab of the time could cope with 200w.

 

[B-string]

100KV?? I used to build transmitters and our 25KW FM's plate supply was just under 9KV.
Another consideration with transmitting tubes is they are mostly direct heater. Much higher heater current than the 1.9A KT88. I have a pair of 811's hanging around and the heater draw is 4 amps.