If you can't find a Mk2 it is easy enough to either buy the Illusion unit from Japan or convert a normal bias SRD-7 to Pro status with a new bias circuit. I would also rewire the thing directly to the windings of the transformers with some nice wire.
The Mk2 is rather rare but I try to snap them up every one I can find them and I even had 3 sitting in a row once waiting to be shipped out...
That is true enough so just get a Blue Hawaii. Easy to bias (unless you just had to get the Black Gates like I did...) and beats the pants of every other amp.
Sounds like a plan. I know that the current SR-Lambda price is all my fault...
The stand and cover are about 40$ used, the phones can be had for 1k$ in Japan, the amp for less and the 5m extension costs 90$ new. Considering it isn't a gray import the price is quite good.
I'm working on it!! I'm going to order some custom made transformers soon and find somebody to laser cut 4mm copper sheets. The tubes are in the mail so I am working on it...
The T2 is a bunch of good ideas thrown in with some bad ones. I do think it will be on par with a stock Blue Hawaii with basic parts but after that it should be surpassed. I'm going to buy one when I find it but it's not a matter of life and death or anything like that.
There is one design available but it doesn't use them for the output stage. There you can use either a 6SN7 or some transistor. I was in some data sheet for an opamp but I forget which.
The Lundahl transformers should be quite good but there are other options such as the what this guy sells.
Just get some 16AWG solid core silver wire and connect them up. Leech the bias from some other amp and you are all set.
It's my experience that the tiny transformers in the SRD-7's can't deliver enough grunt for the SR-007, no matter the amp. I really think you should be the guinea pig for that Lundahl unit...