Making a muscular triode monoblock amplifier using P-P Eimac 450TH's - diyAudio
Go Back   Home > Forums > Amplifiers > Tubes / Valves

Tubes / Valves All about our sweet vacuum tubes :) Threads about Musical Instrument Amps of all kinds should be in the Instruments & Amps forum

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 18th March 2006, 03:46 PM   #1
diyAudio Member
 
rcavictim's Avatar
 
Join Date: Jun 2004
Location: Next to an open wormhole NW of Toronto
Default Making a muscular triode monoblock amplifier using P-P Eimac 450TH's

As my component gathering and preliminary testing of the output xfmer has more or less reached 'critical mass' it now appears likely that this almost life long dreamt about monster power tube amplifier will actually become a hardware reality.

This high powered (about 1.5 kW RMS output) all valve amplifier will have all the power needed to supply low frequency energy for the finest home reference system or to power the electric monorail at Disneyworld. It will have a 'glow in the dark' quality that is capable of competing with the best fireplace, and will be a comfort on those chilly northern winter nights.

Why am I going to build such an outrageous tube amplifier? Because after decades of collecting parts, I finally have all the parts. These are now getting really hard to find and very expensive. Lemme ask you. If you had all the parts, and the tools, the place, and the time to do it, wouldn't you?

This thread will document my progress and I hope might inspire others to push the corner of the envelope in their own tube audio worlds as well. This is not about a power contest. If I wanted to make a 25 kW ouptut amp I could do that too as I have some pretty big components and tubes stashed away salvaged from retired AM broadcast radio transmitters. That is not the point at all. I want an amp that will look fantastic in a living room, be capable of operating on the power available in the house already, not having to pour concrete and put up chain link fencing in the front yard for a dedicated power substation, and the 1.5 kW output power range is not untypical of what many audio enthusiasts are using presently with sand amps providing the push, since tube amplifiers of this power class are virtually nonexistant in the marketplace. That is the beauty of DIY. You can make almost anything you want that you cannot otherwise obtain.

I hereby declare the 2006 Tube Amp High Power DIY Olympic Sized Passtime Games (timeline unimportant) OPEN!
__________________
"There are more worlds than the one you can hold in your hand." Albert Hosteen, Navajo spiritual elder and code-breaker, X-Files TV Series.
  Reply With Quote
Old 18th March 2006, 04:19 PM   #2
beamnet is offline beamnet  Netherlands
diyAudio Member
 
beamnet's Avatar
 
Join Date: Jun 2004
Location: enschede
Send a message via MSN to beamnet
I will be at the sideline cheering

I am a big power fan too.

There's no bragging to your friends with 400mW triode amps!

i still have a "ceramic puck" amp up my sleeve...
  Reply With Quote
Old 18th March 2006, 04:37 PM   #3
Giaime is offline Giaime  Italy
diyAudio Member
 
Giaime's Avatar
 
Join Date: Oct 2004
Send a message via MSN to Giaime


Could you post WHAT components you have at hand? Maybe even photos

I assume you've find pretty BIG power transformers. But those are easy... what about the output ones? I understand that they don't need to pass DC but... some specs of them?
  Reply With Quote
Old 18th March 2006, 04:47 PM   #4
diyAudio Member
 
mod_evil's Avatar
 
Join Date: Dec 2004
Location: Rio
Send a message via MSN to mod_evil
I wanna see this!

WE NEED SOME PHOTOS!

Oh yeah! 1k5w isn't for anybody... Can you post in here the schematic?

Thanks!
Felipe
  Reply With Quote
Old 18th March 2006, 05:47 PM   #5
diyAudio Member
 
Join Date: Apr 2005
Location: ffx station, va
This is nuts. What will you do for a tranny? How much does it weigh? Won't you need to pour a concrete slab to install it? More details? Can I come visit for the smoke test? I have a Fender Twin you can use as a driver if that speeds up the prototype, assuming that 100 watts is enough drive...
  Reply With Quote
Old 18th March 2006, 05:49 PM   #6
diyAudio Member
 
Join Date: Jan 2005
Location: Østfold
I wanna see this too.
This is totally insane, I love insanity.
Please post pictures as you progress.
Looking forward to see your results
__________________
Note to myself: Never again use fingers to check if there still is voltage left in a capacitor...
  Reply With Quote
Old 18th March 2006, 06:35 PM   #7
Gluca is offline Gluca  Italy
diyAudio Member
 
Gluca's Avatar
 
Join Date: Nov 2004
Location: Back to Italy
0.5MW is not enough

Gianluca
  Reply With Quote
Old 18th March 2006, 10:02 PM   #8
diyAudio Member
 
Brian Donaldson's Avatar
 
Join Date: Jan 2003
Location: Texas, Love it or leave it
No balls....no blue chips


Let the games begin. I'm working on 200W SET 833 based amp.
  Reply With Quote
Old 18th March 2006, 10:42 PM   #9
diyAudio Member
 
mod_evil's Avatar
 
Join Date: Dec 2004
Location: Rio
Send a message via MSN to mod_evil
What do you will drive with this 25kw amplifier?
  Reply With Quote
Old 19th March 2006, 12:20 AM   #10
anatech is offline anatech  Canada
diyAudio Moderator
 
anatech's Avatar
 
Join Date: Jun 2004
Location: Georgetown, On
Hey Rob,
This I'm going to have to see! It's a cinch it won't be stolen with anything less than a flatbed and crane!!

Assuming you survive, we can use it to heat coffee. Tech's run on coffee. And sadly, I don't doubt for a second that you are more than serious.

Guys, look for ball lightning in Ontario.

-Chris
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Class-A Monoblock Amplifier Chassis (qty 2) tstrafford Swap Meet 8 14th February 2009 06:19 PM
KT88 PP-5 Monoblock Amplifier zcables Tubes / Valves 4 26th January 2009 07:09 PM
The Making of a Triode emilesprenger Tubes / Valves 8 21st December 2006 12:49 PM
The making of a 3Amp A5 monoblock jonk Pass Labs 1 24th October 2003 09:54 PM


New To Site? Need Help?

All times are GMT. The time now is 09:54 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright ©1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2