What is the most powerful audio output tube, as far as RMS wattage output? I have gotten some powerful sound from four 6L6 tubes in push-pull parallel. but I want more. I know it's possible to use eight 6L6 tubes, which I believe is called " push-pull parallel - parallel", but I'm looking into other possible tubes. At one time, I thought the 807 tube was more powerful than the 6L6, but after careful research, it's almost identical, but with a different envelope (plate on the top cap). I'm looking to get a full 500W RMS (or more) output (per channel), from all tubes, .... With four 6L6 tubes in PPP, I can only get around 120W RMS (per channel).
What is the most powerful audio output tube?
Started by ●December 8, 2016
Reply by ●December 8, 20162016-12-08
On 12/08/2016 10:19 AM, boomer#6877250@none.com wrote:> What is the most powerful audio output tube, as far as RMS wattage > output? > > I have gotten some powerful sound from four 6L6 tubes in push-pull > parallel. but I want more. I know it's possible to use eight 6L6 tubes, > which I believe is called " push-pull parallel - parallel", but I'm > looking into other possible tubes. > > At one time, I thought the 807 tube was more powerful than the 6L6, but > after careful research, it's almost identical, but with a different > envelope (plate on the top cap). > > I'm looking to get a full 500W RMS (or more) output (per channel), from > all tubes, .... With four 6L6 tubes in PPP, I can only get around 120W > RMS (per channel). >The output tranny required for 500 watts RMS is going to be a huge piece of fuck-off iron that will probably set you back the better part of a grand, at least. 500 watts RMS from four tubes will require you to step up way beyond 6L6es and 807s, I think. You're probably going to want to look at something like RF power triodes or tetrodes, 813s or the GU-13 if you're okay with going ex-Soviet. I am not a pro tube guy though so that's just my guess.
Reply by ●December 8, 20162016-12-08
On 8.12.16 17:19, boomer#6877250@none.com wrote:> What is the most powerful audio output tube, as far as RMS wattage > output? > > I have gotten some powerful sound from four 6L6 tubes in push-pull > parallel. but I want more. I know it's possible to use eight 6L6 tubes, > which I believe is called " push-pull parallel - parallel", but I'm > looking into other possible tubes. > > At one time, I thought the 807 tube was more powerful than the 6L6, but > after careful research, it's almost identical, but with a different > envelope (plate on the top cap). > > I'm looking to get a full 500W RMS (or more) output (per channel), from > all tubes, .... With four 6L6 tubes in PPP, I can only get around 120W > RMS (per channel).807 is the transmitting version of 6L6, so it's no wonder that it looks similar. For the power level you're after, you may need real transmitting tubes, e.g. a pair of 3-500Z's. Please understand that the voltages and currents encountered at those power levels will be lethal in careless hands. -- -TV
Reply by ●December 8, 20162016-12-08
<boomer#6877250@none.com> wrote:> What is the most powerful audio output tube, as far as RMS wattage > output? > > I have gotten some powerful sound from four 6L6 tubes in push-pull > parallel. but I want more. I know it's possible to use eight 6L6 tubes, > which I believe is called " push-pull parallel - parallel", but I'm > looking into other possible tubes. > > At one time, I thought the 807 tube was more powerful than the 6L6, but > after careful research, it's almost identical, but with a different > envelope (plate on the top cap). > > I'm looking to get a full 500W RMS (or more) output (per channel), from > all tubes, .... With four 6L6 tubes in PPP, I can only get around 120W > RMS (per channel). > >Go big or go home. http://www.g8wrb.org/tetrodes/
Reply by ●December 8, 20162016-12-08
boomer#6877250@none.com prodded the keyboard with:> What is the most powerful audio output tube, as far as RMS wattage > output? > > I have gotten some powerful sound from four 6L6 tubes in push-pull > parallel. but I want more. I know it's possible to use eight 6L6 > tubes, which I believe is called " push-pull parallel - parallel", > but I'm looking into other possible tubes. > > At one time, I thought the 807 tube was more powerful than the 6L6, > but after careful research, it's almost identical, but with a > different envelope (plate on the top cap). > > I'm looking to get a full 500W RMS (or more) output (per channel), > from all tubes, .... With four 6L6 tubes in PPP, I can only get > around 120W RMS (per channel).Have a look for a Trix cinema amplifier, they did one that used a pair of 813's at around 500 W rms 100 volt line out. -- Best Regards: Baron.
Reply by ●December 8, 20162016-12-08
Den torsdag den 8. december 2016 kl. 16.49.20 UTC+1 skrev Tauno Voipio:> On 8.12.16 17:19, boomer#6877250@none.com wrote: > > What is the most powerful audio output tube, as far as RMS wattage > > output? > > > > I have gotten some powerful sound from four 6L6 tubes in push-pull > > parallel. but I want more. I know it's possible to use eight 6L6 tubes, > > which I believe is called " push-pull parallel - parallel", but I'm > > looking into other possible tubes. > > > > At one time, I thought the 807 tube was more powerful than the 6L6, but > > after careful research, it's almost identical, but with a different > > envelope (plate on the top cap). > > > > I'm looking to get a full 500W RMS (or more) output (per channel), from > > all tubes, .... With four 6L6 tubes in PPP, I can only get around 120W > > RMS (per channel). > > > 807 is the transmitting version of 6L6, so it's no wonder that it looks > similar. > > For the power level you're after, you may need real transmitting tubes, > e.g. a pair of 3-500Z's. Please understand that the voltages and > currents encountered at those power levels will be lethal in careless > hands. >first hit on google for 500w tube amp http://www.chambonino.com/construct/const9.html
Reply by ●December 8, 20162016-12-08
On 12/08/16 07:19, boomer#6877250@none.com so wittily quipped:> What is the most powerful audio output tube, as far as RMS wattage > output? > > I have gotten some powerful sound from four 6L6 tubes in push-pull > parallel. but I want more. I know it's possible to use eight 6L6 tubes, > which I believe is called " push-pull parallel - parallel", but I'm > looking into other possible tubes. > > At one time, I thought the 807 tube was more powerful than the 6L6, but > after careful research, it's almost identical, but with a different > envelope (plate on the top cap). > > I'm looking to get a full 500W RMS (or more) output (per channel), from > all tubes, .... With four 6L6 tubes in PPP, I can only get around 120W > RMS (per channel). >you'd probably do well with 6550, or KT88 (or maybe 8417 if you can find them) - I think you'd need 6 of them for 500W. Output transformer might be a bit more difficult. this page shows the 1650W for 280W and 6 to 8 output tubes http://www.hammondmfg.com/1608.htm if you're desperate, you could just bridge two of them to get 560W, or tweek the circuit and use the 8 ohm output on 4 ohms and run the risk of frying the transformer at some point...
Reply by ●December 8, 20162016-12-08
> > What is the most powerful audio output tube, as far as RMS wattage > > output? > > > >You want a pair of 6427's like WABC used to run http://hawkins.pair.com/wabc.shtml (RMS watts is a misnomer) m
Reply by ●December 8, 20162016-12-08
On 8.12.16 18:10, Lasse Langwadt Christensen wrote:> Den torsdag den 8. december 2016 kl. 16.49.20 UTC+1 skrev Tauno Voipio: >> On 8.12.16 17:19, boomer#6877250@none.com wrote: >>> What is the most powerful audio output tube, as far as RMS wattage >>> output? >>> >>> I have gotten some powerful sound from four 6L6 tubes in push-pull >>> parallel. but I want more. I know it's possible to use eight 6L6 tubes, >>> which I believe is called " push-pull parallel - parallel", but I'm >>> looking into other possible tubes. >>> >>> At one time, I thought the 807 tube was more powerful than the 6L6, but >>> after careful research, it's almost identical, but with a different >>> envelope (plate on the top cap). >>> >>> I'm looking to get a full 500W RMS (or more) output (per channel), from >>> all tubes, .... With four 6L6 tubes in PPP, I can only get around 120W >>> RMS (per channel). >> >> >> 807 is the transmitting version of 6L6, so it's no wonder that it looks >> similar. >> >> For the power level you're after, you may need real transmitting tubes, >> e.g. a pair of 3-500Z's. Please understand that the voltages and >> currents encountered at those power levels will be lethal in careless >> hands. >> > > first hit on google for 500w tube amp > > http://www.chambonino.com/construct/const9.html >The maximum plate dissipation of a 813 is 100 W, which is a bit too little for continuous 500 W out. 4 * 813 will stand 400 W on plate, but 2 * 3-500Z will stand 1 kW. -- -TV PS. Been there, done that. I still have a scar due to a transmitter built with 813's.
Reply by ●December 8, 20162016-12-08
On Thu, 8 Dec 2016 18:43:02 +0200, Tauno Voipio <tauno.voipio@notused.fi.invalid> wrote:>On 8.12.16 18:10, Lasse Langwadt Christensen wrote: >> Den torsdag den 8. december 2016 kl. 16.49.20 UTC+1 skrev Tauno Voipio: >>> On 8.12.16 17:19, boomer#6877250@none.com wrote: >>>> What is the most powerful audio output tube, as far as RMS wattage >>>> output? >>>> >>>> I have gotten some powerful sound from four 6L6 tubes in push-pull >>>> parallel. but I want more. I know it's possible to use eight 6L6 tubes, >>>> which I believe is called " push-pull parallel - parallel", but I'm >>>> looking into other possible tubes. >>>> >>>> At one time, I thought the 807 tube was more powerful than the 6L6, but >>>> after careful research, it's almost identical, but with a different >>>> envelope (plate on the top cap). >>>> >>>> I'm looking to get a full 500W RMS (or more) output (per channel), from >>>> all tubes, .... With four 6L6 tubes in PPP, I can only get around 120W >>>> RMS (per channel). >>> >>> >>> 807 is the transmitting version of 6L6, so it's no wonder that it looks >>> similar. >>> >>> For the power level you're after, you may need real transmitting tubes, >>> e.g. a pair of 3-500Z's. Please understand that the voltages and >>> currents encountered at those power levels will be lethal in careless >>> hands. >>> >> >> first hit on google for 500w tube amp >> >> http://www.chambonino.com/construct/const9.html >> > >The maximum plate dissipation of a 813 is 100 W, which is a bit too >little for continuous 500 W out. 4 * 813 will stand 400 W on plate, >but 2 * 3-500Z will stand 1 kW.<http://www.radiowrench.com/sonic/so02017.html> ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | STV, Queen Creek, AZ 85142 Skype: skypeanalog | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | There is no fool quite like an audiphool.
