6V6 SET amp with 6SN7 driver

camotecue · 23rd April 2004, 01:47 AM

this is my first time posting here. i have a pair of 6SN7GTBs and a pair of 6V6GTY tubes. i want to try building a SET amp preferably tube rectified using 5U4G. i'm looking for good schematic i can use. can anyone please help me?

Roscoe Primrose · 23rd April 2004, 03:19 AM

See: 12at7->6aq5 amp the 6AQ5 is electrically very similar to the 6V6, just can't handle quite as much plate voltage... Also 6SN7 -> 6550 amp

Neither of these is exactly what you're looking for, but there a good starting point...

Peace

camotecue · 23rd April 2004, 03:35 AM

thanks for the reply. can't seem to open the suggested sites though.

Eli Duttman · 23rd April 2004, 04:16 AM

What sort of speakers are you planning to use the amp with? SE and triode strapped, a 6V6 will yield about 3 W. IMO, 98 dB. SPL speakers are indicated for 3 WPC amplification.

You could squeeze about 5 W. out of a 6V6 if it's wired UL SE. 95 dB. SPL speakers enter the picture at 5 WPC.

Cascaded common cathode gain blocks will give you plenty of drive. Don't forget a decoupling filter in a 3 stage amp. Perhaps a DC coupling expert will help in setting up the 'SN7s; that would leave only 1 cap. (between the driver and 6V6) in the signal path.

BTW, I tried the links Mr. Primrose provided. I get a page unavailable notification.

fdegrove · 23rd April 2004, 04:48 AM

Hi,

Quote:

I get a page unavailable notification.

Just the way the thing is coded so use the frontdoor:

MATHIJS

Cheers,

camotecue · 23rd April 2004, 05:12 AM

Quote:

Originally posted by Eli Duttman
What sort of speakers are you planning to use the amp with? SE and triode strapped, a 6V6 will yield about 3 W. IMO, 98 dB. SPL speakers are indicated for 3 WPC amplification.

You could squeeze about 5 W. out of a 6V6 if it's wired UL SE. 95 dB. SPL speakers enter the picture at 5 WPC.

Cascaded common cathode gain blocks will give you plenty of drive. Don't forget a decoupling filter in a 3 stage amp. Perhaps a DC coupling expert will help in setting up the 'SN7s; that would leave only 1 cap. (between the driver and 6V6) in the signal path.

BTW, I tried the links Mr. Primrose provided. I get a page unavailable notification.

thank you for the replies. i'm currently using an 8" single full range driver in a voigt pipe. my current amp which is a 2A3 can easily drive it to loud levels. just wanted to utilize these spare tubes. i already have a 6V6 push-pull amp so i wanted to build a another 6V6 amp but in a SET config.

zobsky · 23rd April 2004, 05:21 AM

http://www.boozhoundlabs.com/howto/

others here can comment on the optimum bias / load values

cheers

planet10 · 23rd April 2004, 06:12 AM

found on my hard drive...

planet10 · 23rd April 2004, 06:14 AM

more... 12AX7 + 6V6

SHiFTY · 23rd April 2004, 07:17 AM

If you are into experimentation (!) maybe try it in pentode mode with a little negative feedback. I made one sound very good using this method.

6V6s are great tubes, better than those christmas-tree-light 6AQ5s! And they can easily handle 12W or more dissipation (5W audio in pentode mode)

23rd April 2004, 01:47 AM	#1
camotecue diyAudio Member Join Date: Apr 2004 Location: pampanga	6V6 SET amp with 6SN7 driver this is my first time posting here. i have a pair of 6SN7GTBs and a pair of 6V6GTY tubes. i want to try building a SET amp preferably tube rectified using 5U4G. i'm looking for good schematic i can use. can anyone please help me?

23rd April 2004, 04:16 AM	#4
Eli Duttman diyAudio Member Join Date: Apr 2004 Location: Plainsboro, NJ	What sort of speakers are you planning to use the amp with? SE and triode strapped, a 6V6 will yield about 3 W. IMO, 98 dB. SPL speakers are indicated for 3 WPC amplification. You could squeeze about 5 W. out of a 6V6 if it's wired UL SE. 95 dB. SPL speakers enter the picture at 5 WPC. Cascaded common cathode gain blocks will give you plenty of drive. Don't forget a decoupling filter in a 3 stage amp. Perhaps a DC coupling expert will help in setting up the 'SN7s; that would leave only 1 cap. (between the driver and 6V6) in the signal path. BTW, I tried the links Mr. Primrose provided. I get a page unavailable notification. __________________ Eli D.

23rd April 2004, 05:21 AM	#7
zobsky diyAudio Member Join Date: Mar 2002 Location: Dallas, Tx, USA	http://www.boozhoundlabs.com/howto/ others here can comment on the optimum bias / load values cheers __________________ "Any fool can know. The point is to understand" - Albert Einstein

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23rd April 2004, 03:19 AM	#2
Roscoe Primrose diyAudio Member Join Date: Jan 2004 Location: Virginia, USA	See: 12at7->6aq5 amp the 6AQ5 is electrically very similar to the 6V6, just can't handle quite as much plate voltage... Also 6SN7 -> 6550 amp Neither of these is exactly what you're looking for, but there a good starting point... Peace

23rd April 2004, 03:35 AM	#3
camotecue diyAudio Member Join Date: Apr 2004 Location: pampanga	thanks for the reply. can't seem to open the suggested sites though.

23rd April 2004, 07:17 AM	#10
SHiFTY diyAudio Member Join Date: Jul 2002 Location: New Zealand	If you are into experimentation (!) maybe try it in pentode mode with a little negative feedback. I made one sound very good using this method. 6V6s are great tubes, better than those christmas-tree-light 6AQ5s! And they can easily handle 12W or more dissipation (5W audio in pentode mode)

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