Fosgate Signature Phono Preamp

The original supplied 6DJ8 tubes have no markings on them except 6DJ8 printed vertically in red ink. Musical Surroundings was the distributor for the Fosgate Signature and I believe the only place you will find those tubes, I did buy one from them a number of years ago. The last time I spoke with them it seemed they still sold them, suggest you just give them a call, I always found them pleasant to deal with.

Jim Fosgate recommended not to swap out the supplied 6DJ8 tubes saying you would probably end up with to much bass energy. I have tried a number of different brands of tubes in the V1 and V2 positions and I'm happy with my current setup. I will also say that in my system I found the Mullard CV4024 (12AT7) to be to warm. I believe the Svetlana 12AX7 is the original supplied tube for V3 and V4, the Phillips JAN 12AT7WC was the original supplied tube for V5 and V6.

Gary  

Thanks Gary and tablejockey for the much appreciated support. I talked to Ken at Musical Surroundings and he was Indeed very nice. I ended up getting two EH 6922 and two Tung-Sol 12ax7 to see if this solves the issue. I will post how it turns out! ;)

@ffedde , how did it turn out??

I know this is an old thread, but just wanted to post my comment.

I recently received a used Fosgate Signature preamp and I am very impressed with what I hear. It’s everything that it has been made out to be. And I want to thank @tablejockey for it was his enthusiasm that led me down this path.

Oz

Good old threads should never die. 

I recently acquired a Fosgate Signature phono.  Was very disappointed at first because it was wrought with noise!  Humming, crackling, etc.  

Turns out that one has to perform simple maintenance now and again.  The tube sockets were cleaned and treated with Caig Gold.  No more crackling. 

The hum was very annoying and I was frustrated that I could not figure it out.  I finally pulled the bottom cover off and saw that the load selector switch has open air exposed contacts.  I cleaned and treated the switch and all noise was gone.  Absolute silence.  Now having fun rolling tubes. 

I agree with all of the positive comments - It really is a great stage.