[DTB300]

I will be receiving my modded player back shortly with the external PS.  I looked on the site but could not determine what is the current Rectifier Tube used in the PS.  After listening to the player in stock form for a month or so, I plan on rolling some tubes to see the differences.  I already have some additional 5687 tubes for the player to try out and wanted to pick up another rectifier tube or two for rolling.  I do not want to purchase a second of the same tube, hence my question.

Thanks
Dan

[woodsyi]

Dan,

I am pretty sure it's 5AR4s on all his tube PS.  I got some extra Mullards you can try -- no need to spend a ~$100 just to find out. 

[DTB300]

Dan,I am pretty sure it's 5AR4s on all his tube PS.  I got some extra Mullards you can try -- no need to spend a ~$100 just to find out. 

Woodsyi...Thanks for the reply.  I know about the 5AR4's but wondered which brand they were using.  Sovtek, Amperex, Mullard, etc.

I do not want to purchase an additional tube to roll and get the same brand

[Philistine]

When I had a 999ES with external PSU I believe the tube was a Sovtek.
My tube rolling resulted in a Mullard NOS 5AR4 giving the best combination with 5687's.

[MarkR7]

I've also been using a Mullard 5AR4 (NOS, F31 date code) for a while now with great success on the tubed p/s for my Modwright 9000ES.  Recently, after reading the threads here, I have picked up a Tung-Sol 5U4G which I have to admit sounds very, very good.  More swapping is needed, but heck, I think I prefer it at this time, and it was substantially cheaper.  I also picked up a bunch of different 5U4G, 5U4GB NOS tubes to play with.....

[DTB300]

So Sovtek is the stock brand of rectifier tube the PS comes with.... ?????????

Do any of you run dampeners on your Rectifier tube? 

I personally like Herbie's for my other tube usage and plan on ordering a couple for the 5687, and might as well order one for the 5AR4 while I am at it.

[JG2]

Herbie's new 'Sonic' line are pretty good and REALLY hold on tight compared to his previous versions.

The Sovtek 5AR4 are no longer the stock rectifier supplied with the Sony 999/9100 PS.

[DTB300]

The Sovtek 5AR4 are no longer the stock rectifier supplied with the Sony 999/9100 PS.

Okay...so what is the brand?

[JG2]

I believe it is 'Ruby'.

It is Chinese made, sounds good & has been very reliable.