Output transformers for EL84,6V6 single end - Page 6

kevinkr · 18th September 2010, 11:40 PM

Hi Tony,
High praise coming from you guys. Your amplifiers are beautifully constructed with great attention to detail. Mine these days go together very quickly with solid engineering, but no where near the attention to detail you guys do. (Since these days they are all for me that is not an issue as I can tweak to my heart's content)

The rectifier is currently a 5U4G, eventually I will try a 5Y3G, (my original intention was to use a 5Y3G, but I must have given them all away as I have now have none on hand) and have also run the GZ32 - however with my now much improved power supply the higher voltage of the GZ32 is just a bit too high without an adjustment to the screen voltage.

The transformers are key to a successful amplifier design, and this is the best sounding amp of this genre I have yet heard so I think that says a lot about the transformers.

Musik007 · 20th September 2010, 01:49 PM

Hi Kevin,

5U4G rectifier (225 mA) is a bit high for 6V6 single end. 5Y3 and 5Z4 would be better. Power transformer is a basis of power of an amplifier. A good power transformer can provide enough power for tubes and operating voltage and maintain amplifier working in good condition. Output transformer is the last stage of tube amplifier. It is very important to achieve a wide frequency range for output transformer.

Thanks for your comments.

Regards,
Tony.

commstech · 23rd February 2011, 01:54 PM

Dear Tony, are these output transformers and their covers still available for sale? Please pm me cost for shipping to singapore.

Musik007 · 24th February 2011, 06:12 AM

Hello,

The output transformers and the covers are still available for sale. The price is:
US$45+US$10(2 covers)+US$20(air mail cost)=US$75 for a pair.
Can pay through Paypal.

Thanks & Regards,
Tony.

Quote:

Originally Posted by commstech

Dear Tony, are these output transformers and their covers still available for sale? Please pm me cost for shipping to singapore.

kevinkr · 24th February 2011, 12:39 PM

I'm still just as pleased with those transformers as when I posted my last comment.

The amp in question was a big hit at the last hifi get together I hosted.

Hard to imagine anything better for the price. Highly recommended..

commstech · 25th February 2011, 03:36 AM

possible to have have 0-8-16ohm output instead of 0-4-8ohm?

Musik007 · 25th February 2011, 05:16 AM

Hi Kevin,

Thank you for your support.

You are the only one who bought these transformers. Haha.

Tony.

Quote:

Originally Posted by kevinkr

I'm still just as pleased with those transformers as when I posted my last comment.

The amp in question was a big hit at the last hifi get together I hosted.

Hard to imagine anything better for the price. Highly recommended..

Musik007 · 25th February 2011, 05:18 AM

Yes, it is possible to custom make 0-8-16 ohms outputs, but the price will be higher than the existing one.

Quote:

Originally Posted by commstech

possible to have have 0-8-16ohm output instead of 0-4-8ohm?

commstech · 25th February 2011, 09:43 AM

Quote:

Originally Posted by Musik007

Yes, it is possible to custom make 0-8-16 ohms outputs, but the price will be higher than the existing one.

would u please get me a quotation because i would be interested if the price is not too far off. thanks in advance.

AllenB · 25th February 2011, 12:00 PM

I would like a quote too, please for a standard pair plus postage to Australia.

18th September 2010, 11:40 PM	#51
kevinkr diyAudio Moderator Join Date: Sep 2004 Location: Boston, Massachusetts Blog Entries: 6	Hi Tony, High praise coming from you guys. Your amplifiers are beautifully constructed with great attention to detail. Mine these days go together very quickly with solid engineering, but no where near the attention to detail you guys do. (Since these days they are all for me that is not an issue as I can tweak to my heart's content) The rectifier is currently a 5U4G, eventually I will try a 5Y3G, (my original intention was to use a 5Y3G, but I must have given them all away as I have now have none on hand) and have also run the GZ32 - however with my now much improved power supply the higher voltage of the GZ32 is just a bit too high without an adjustment to the screen voltage. The transformers are key to a successful amplifier design, and this is the best sounding amp of this genre I have yet heard so I think that says a lot about the transformers. __________________ "Extraordinary claims require extraordinary evidence." - Carl Sagan

24th February 2011, 12:39 PM	#55
kevinkr diyAudio Moderator Join Date: Sep 2004 Location: Boston, Massachusetts Blog Entries: 6	I'm still just as pleased with those transformers as when I posted my last comment. The amp in question was a big hit at the last hifi get together I hosted. Hard to imagine anything better for the price. Highly recommended.. __________________ "Extraordinary claims require extraordinary evidence." - Carl Sagan

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20th September 2010, 01:49 PM	#52
Musik007 diyAudio Member Join Date: Nov 2009	Hi Kevin, 5U4G rectifier (225 mA) is a bit high for 6V6 single end. 5Y3 and 5Z4 would be better. Power transformer is a basis of power of an amplifier. A good power transformer can provide enough power for tubes and operating voltage and maintain amplifier working in good condition. Output transformer is the last stage of tube amplifier. It is very important to achieve a wide frequency range for output transformer. Thanks for your comments. Regards, Tony.

23rd February 2011, 01:54 PM	#53
commstech diyAudio Member Join Date: Oct 2002 Location: SINGAPORE	Dear Tony, are these output transformers and their covers still available for sale? Please pm me cost for shipping to singapore.

25th February 2011, 03:36 AM	#56
commstech diyAudio Member Join Date: Oct 2002 Location: SINGAPORE	possible to have have 0-8-16ohm output instead of 0-4-8ohm?

25th February 2011, 12:00 PM	#60
AllenB diyAudio Member Join Date: Oct 2008	I would like a quote too, please for a standard pair plus postage to Australia.