idiot proof mono push pull 6l6gc schematic wanted

jasondace2b · 29th September 2011, 02:44 PM

i need a very basic schematic, that is easily readable with either a 6sn7 or a 6sl7 doing input and phase inversion duties. i have pairs 5k and 3.8k hifi output transformers. i have four sockets on these chassis and dont want to add anymore 1 input 2 power 1 rectifier. 30 watts or there abouts is what iam after in power output.
thanks

brucetassin · 29th September 2011, 04:44 PM

Try this one.

Boozhound Laboratories

check out the rest of his site also, much good stuff.

jasondace2b · 29th September 2011, 06:55 PM

thanks Bruce. if anybody has one in the cooler you could send it to me at jasondplacetobe@yahoo.com

iam serious and will build it with pics toight. iam awsome at soldering and laying out, just not at getting things to work great LOL. figure i will get one right, one of these days by accident.

tomchr · 07:23 PM

A google search turns up the following:

a 6L6 power amplifier

DIY Audio Projects Forum • Williamson 6SN7 - 6L6 (KT66) Tube Amplifier

The EF86+6SN7+6L6 push-pull circuit - Amplifier_Circuit - Circuit Diagram - SeekIC.com

Not surprisingly, Pete Millett has a 6L6 design as well:
Push-pull KT88 class A amp with "universal" driver PCB

Rather than expecting everybody to bend over and hand you a schematic, how about looking at what's already out there?

~Tom

aardvarkash10 · 29th September 2011, 07:38 PM

excellent. Another paint-by-numbers job...

The boozehound link is SE, not PP.

IMO, 4 bottles is not going to get you enough gain and split and grid drive if you intend to use one of the spaces for a rectifier and still get 30W. I'd look at ss rectification, and that frees up your gain stage and phase splitter options.

costis_n · 29th September 2011, 07:54 PM

Unfortunately, Push-Pull amplifiers are definitely not for idiots. Believe me, I have tried.

jasondace2b · 29th September 2011, 08:35 PM

Quote:

Originally Posted by costis_n

Unfortunately, Push-Pull amplifiers are definitely not for idiots. Believe me, I have tried.

thanks for relating. i have spent 2 mos on 2 different builds, and they both suck. something that would get my confidence going again would be nice.
the boozehound site does have some good reading at least. i need more theory so maybe i can figure some of this stuff out myself. learning this is harder than a golf swing.

samer0214 · 29th September 2011, 09:14 PM

Quote:

Originally Posted by tomchr

A google search turns up the following:

a 6L6 power amplifier

DIY Audio Projects Forum • Williamson 6SN7 - 6L6 (KT66) Tube Amplifier

The EF86+6SN7+6L6 push-pull circuit - Amplifier_Circuit - Circuit Diagram - SeekIC.com

Not surprisingly, Pete Millett has a 6L6 design as well:
Push-pull KT88 class A amp with "universal" driver PCB

Rather than expecting everybody to bend over and hand you a schematic, how about looking at what's already out there?

~Tom

If you decide to go with Pete Millet's KT88 build as suggested, check out my revived thread entitled "Building my 1st tube amp". I am on the way to building 2 of them, and they are not cheap. From all I've read they sound awesome, but they are definitely not an easy build, at least not for a newb like me.

aardvarkash10 · 29th September 2011, 09:51 PM

Jason, this is THE definative thread on the 25W 6L6gc pp subject...

6L6GC AB2 Amp

vinylkid58 · 29th September 2011, 09:56 PM

Quote:

Originally Posted by jasondace2b

i have spent 2 mos on 2 different builds, and they both suck.

Care to elaborate. Inquiring minds and all that.

jeff

29th September 2011, 02:44 PM	#1
jasondace2b diyAudio Member Join Date: Jul 2011	idiot proof mono push pull 6l6gc schematic wanted i need a very basic schematic, that is easily readable with either a 6sn7 or a 6sl7 doing input and phase inversion duties. i have pairs 5k and 3.8k hifi output transformers. i have four sockets on these chassis and dont want to add anymore 1 input 2 power 1 rectifier. 30 watts or there abouts is what iam after in power output. thanks

29th September 2011, 07:21 PM	#4
tomchr diyAudio Member Join Date: Feb 2009 Location: Greater Seattle Area	A google search turns up the following: a 6L6 power amplifier DIY Audio Projects Forum • Williamson 6SN7 - 6L6 (KT66) Tube Amplifier The EF86+6SN7+6L6 push-pull circuit - Amplifier_Circuit - Circuit Diagram - SeekIC.com Not surprisingly, Pete Millett has a 6L6 design as well: Push-pull KT88 class A amp with "universal" driver PCB Rather than expecting everybody to bend over and hand you a schematic, how about looking at what's already out there? ~Tom __________________ "50 % of the game is mental and the other 50 % is being mental. I've got that part down, no problem." http://www.neurochrome.com/audio Last edited by tomchr; 29th September 2011 at 07:23 PM.

29th September 2011, 07:38 PM	#5
aardvarkash10 diyAudio Member Join Date: Mar 2007 Location: Auckland, NZ	excellent. Another paint-by-numbers job... The boozehound link is SE, not PP. IMO, 4 bottles is not going to get you enough gain and split and grid drive if you intend to use one of the spaces for a rectifier and still get 30W. I'd look at ss rectification, and that frees up your gain stage and phase splitter options. __________________ Yes, conservatism thrives on low intelligence and poor information. But the liberals in politics... continue to back off, yielding to the supremacy of the stupid. It's turkeys all the way down. - George Monbiot, guardian.co.uk, 6 Feb 2012

29th September 2011, 09:51 PM	#9
aardvarkash10 diyAudio Member Join Date: Mar 2007 Location: Auckland, NZ	Jason, this is THE definative thread on the 25W 6L6gc pp subject... 6L6GC AB2 Amp __________________ Yes, conservatism thrives on low intelligence and poor information. But the liberals in politics... continue to back off, yielding to the supremacy of the stupid. It's turkeys all the way down. - George Monbiot, guardian.co.uk, 6 Feb 2012

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29th September 2011, 04:44 PM	#2
brucetassin diyAudio Member Join Date: Dec 2005 Location: Loganville, GA	Try this one. Boozhound Laboratories check out the rest of his site also, much good stuff.

29th September 2011, 06:55 PM	#3
jasondace2b diyAudio Member Join Date: Jul 2011	thanks Bruce. if anybody has one in the cooler you could send it to me at jasondplacetobe@yahoo.com iam serious and will build it with pics toight. iam awsome at soldering and laying out, just not at getting things to work great LOL. figure i will get one right, one of these days by accident.

29th September 2011, 07:54 PM	#6
costis_n Tinkerer diyAudio Member Join Date: Aug 2008	Unfortunately, Push-Pull amplifiers are definitely not for idiots. Believe me, I have tried.

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