About an hybrid LM3886 amp using 12AX7 tube

[Mark Allen]

I've bought several kits including a clone of an old but famous US built toobe preamp directly from China and so far no problems at all. The stuff has worked perfectly and quality has been very high. Delivery too has been quick.

Mark

 

[Dxvideo]

I'm using something like this- sounds very clear!


tube is ECC88 ?or you can see it:
http://cgi.ebay.com/E88CC-6DJ8-6N23...66:2|39:1|72:1234|240:1318|301:1|293:1|294:50

Hi Jazzman,

Do you think the Russian 6N6P is suitable for this buffer?
And what about to use the same power supply for the buffer and the power amp? Or if I use the same +/-35v for both buffer and the LM what kind of problems I face?
By the way, I dont understand too much from the tubes

 

[viki_v2]

the amp is very goood !(about my schematics ,you can try it)

as i know 12ax7 and 6n23p have different characteristics and not only the filament conection is not like in 6N23P
your schematics is good too but is beter if you use 4,7u cap as input capacitor

this is my pcb for my amp

hello,
This is nice amp.
I have two modules of BPA150 3 Lm3886 Parelled Pcb.
Please guide how to use the tube input section to work with my pcbs.

Pcb is from-http://www.shine7.com/audio/bpa300.htm.

thank you

 

[Tony44]

PCB-Top and PCB bottom layer

the amp is very goood !(about my schematics ,you can try it)

as i know 12ax7 and 6n23p have different characteristics and not only the filament conection is not like in 6N23P
your schematics is good too but is beter if you use 4,7u cap as input capacitor

this is my pcb for my amp

Please give PCB TOP and PCB bottom layer with a12AX7 in pdf format and schematics for this hibrid audioamplifier.
thanks!