6e5p & 6c41 tube amplifier

Ralllo · 1st November 2012, 02:10 PM

hello,
I have decided to build an amplifier SE with a 6e5p as driver and a 6c41 (1/2 6c33) as a power tube.
I already have the tube as well as many athers but i need a schematics already tested or reliable that i can build.
Can someone help me?
thank you

mwiebe · 1st November 2012, 03:20 PM

I've had this up and running for years.
Matt

Ralllo · 1st November 2012, 04:23 PM

thank you,
very nice, i suppose that the output is arround 5watts, right?
do you have also the power supply schematics?

enzoastro · 1st November 2012, 06:08 PM

Apoligys for going off topic....
I use 6e5p as an input/driver on my gm70 amp, has it been ok at that bias/ Va? had a feeling max Va was 150ish, mine run at 180v, they are so cheap i wasn't worried running them at 30v over but if they are ok at 270 i'll be able to get more swing out of them:-)

enzo

mwiebe · 1st November 2012, 06:34 PM

I build on separate chassis so I use whatever power supply can offer about 400mA easily, those 6S41S are thirsty. I have a few power supplies built around a Signal Transformer DU-1/2 that can supply the necessary current easily, but I do not have any schematics to pass on sorry.

Enzo
You caught me pushing voltages, but the tubes are cheap. I have not had any problems with tube life.
Matt

Ralllo · 1st November 2012, 07:49 PM

thank you

i try to figure out how to build a power supply, i don't have much space so everything must be on the ampli frame.

LinuksGuru · 07:28 PM

Quote:

Originally Posted by mwiebe

I've had this up and running for years.
Matt

May I ask you why you have chosen 6E5P plate choke circuit instead of plain tetrode or triode connection?

6E5P is HF tube, is it possible plate choke parasitic stray capacitance and leakage inductance may lead to instability and oscillation? Its just my guess, please correct if I'm wrong here.

Thanks.

Ejam · Today, 12:06 AM

Why are you running 27mA through a 15mA rated choke?

azazello · Today, 07:47 AM

I will post my schematic, that you need later today.

1st November 2012, 02:10 PM	#1
Ralllo diyAudio Member Join Date: Feb 2012	6e5p & 6c41 tube amplifier hello, I have decided to build an amplifier SE with a 6e5p as driver and a 6c41 (1/2 6c33) as a power tube. I already have the tube as well as many athers but i need a schematics already tested or reliable that i can build. Can someone help me? thank you

Today, 12:06 AM	#8
Ejam diyAudio Member Join Date: Aug 2004 Location: Queensland	Choke is Overloaded Why are you running 27mA through a 15mA rated choke?

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1st November 2012, 04:23 PM	#3
Ralllo diyAudio Member Join Date: Feb 2012	thank you, very nice, i suppose that the output is arround 5watts, right? do you have also the power supply schematics?

1st November 2012, 06:08 PM	#4
enzoastro diyAudio Member Join Date: Oct 2010 Location: se england	Apoligys for going off topic.... I use 6e5p as an input/driver on my gm70 amp, has it been ok at that bias/ Va? had a feeling max Va was 150ish, mine run at 180v, they are so cheap i wasn't worried running them at 30v over but if they are ok at 270 i'll be able to get more swing out of them:-) enzo

1st November 2012, 06:34 PM	#5
mwiebe diyAudio Member Join Date: Apr 2004	I build on separate chassis so I use whatever power supply can offer about 400mA easily, those 6S41S are thirsty. I have a few power supplies built around a Signal Transformer DU-1/2 that can supply the necessary current easily, but I do not have any schematics to pass on sorry. Enzo You caught me pushing voltages, but the tubes are cheap. I have not had any problems with tube life. Matt

1st November 2012, 07:49 PM	#6
Ralllo diyAudio Member Join Date: Feb 2012	thank you i try to figure out how to build a power supply, i don't have much space so everything must be on the ampli frame.

Today, 07:47 AM	#9
azazello diyAudio Member Join Date: Aug 2008 Location: Bulgaria	I will post my schematic, that you need later today.