6n2p

for the DIY ST35, the Dynakit and every other PP EL84

6n2p

Postby cedricb » Sat Jun 07, 2014 6:55 am

If I made an adapter; can I use a 6n2p-ev in place of the 12AX7A? At the moment I'm using a Raytheon 5751 (1960) which has a gain of 70 (instead of 100 for a 12AX7).
cedricb
 
Posts: 89
Joined: Mon Jan 28, 2008 4:49 am

Re: 6n2p

Postby Geek » Sat Jun 07, 2014 11:42 am

It draws double the heater current at 6.3V than a 12AX7, if your transformer can handle that plugging in the 6N2P won't hurt anything.

6N2P, 12AX7, 5751 is one of the most common "tube rolls" in gear.

Makes me as a tech shudder, but all that matters is sound, right? ;)

Cheers!
-= Gregg =-
Fine wine comes in glass bottles, not plastic sacks. Therefore the finer electrons are also found in glass bottles.
User avatar
Geek
KT88
 
Posts: 3585
Joined: Sun Oct 21, 2007 3:01 am
Location: Chilliwack, British Columbia

Re: 6n2p

Postby cedricb » Sat Jun 07, 2014 2:56 pm

Thanks. I'll try to do a little pcb like this, I just need to find the same kind of golden pins...

Image

I think my Trafomatic transformer is rated at 5A (maybe 6A, I can't found my original quote) on the 6.3V windings.
cedricb
 
Posts: 89
Joined: Mon Jan 28, 2008 4:49 am

Re: 6n2p

Postby TerrySmith » Sat Jun 07, 2014 3:27 pm

Yes, the 6N2P will sound great, especially if you have the -EV version. The heater is the only thing that needs rewiring as it takes 6.3v at pins 4 & 5.

I have a PAS-3X that I put 6N2P-EV in all four places, to me it sounds every bit as good as the original Telefunkens !
T. Smith
User avatar
TerrySmith
KT88
 
Posts: 973
Joined: Sat Jan 31, 2004 12:51 pm
Location: Maryville TN

Re: 6n2p

Postby cedricb » Mon Jun 09, 2014 2:55 pm

Do you think it'll be OK if I connect pin 9 to my chassis which is bolt to the safety earth. I don't have access to the PCB circuit ground from the aluminium top plate (that's the "chassis").
cedricb
 
Posts: 89
Joined: Mon Jan 28, 2008 4:49 am

Re: 6n2p

Postby cedricb » Fri Jul 04, 2014 2:40 pm

...could someone review this little PCB please? (this is the bottom side) ...$3.40 for 3 boards with OSH Park!
Otherwise what type of connector/solder crimp/etc, can I use to wire the ground connection; this will be sandwich between the PCB and the tube socket.
Attachments
adapter.png
adapter.png (6.17 KiB) Viewed 6885 times
cedricb
 
Posts: 89
Joined: Mon Jan 28, 2008 4:49 am


Return to stereo 35

Who is online

Users browsing this forum: No registered users and 2 guests