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Musik007 12th August 2010 03:17 PM

2A3 Single End Class A amplifier
This is our 2A3 single end class A integrated amplifier which is designed and made on the basis of the classic 2A3 circuit, 6SN7 double triode drives 2A3 in class A single end with 5U4G rectifier. The output power is 4W. 2A3 is a direct heated triode, but unlike 300B, the sound of 2A3 is more transparent, dynamic and fast...

Musik007 13th August 2010 02:31 PM

2 Attachment(s)
Full Music 6SN7 and Shuguang 2A3C.

Musik007 15th August 2010 03:12 PM

1 Attachment(s)
Shuguang 2A3C and RCA 5U4G rectifier.

Musik007 17th August 2010 04:37 PM

1 Attachment(s)
This is the hand-made power transformer which was particularly made for 2A3 single end.

Musik007 22nd August 2010 04:34 PM

1 Attachment(s)

Ben cvt 4th March 2012 03:04 PM

Pm me price

Musik007 5th March 2012 12:05 PM

Please check PM. Thanks.

Originally Posted by Ben cvt (
Pm me price

HPH 17th March 2013 03:06 AM

Hi Mr.Tony,
Can you pm price og 2a3 amp

Musik007 18th March 2013 04:47 AM


Please check pm for reply.


Originally Posted by HPH (
Hi Mr.Tony,
Can you pm price og 2a3 amp

HPH 19th March 2013 11:30 AM

Hi Mr.Tony,
can you please advice more infos of 2a3 amp such as chassis, transformer,..

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