Well, sort of, but there is another option.
http://www.diyaudio.com/forums/pass-labs/290776-50w-single-ended-baf2015-schade-enabled.html
I do not follow this tread, but I'm always interested in this amp. Has anyone actually completed this amp?
I'm still gathering parts and it will be a scaled down version. Output around 15w to 20w.
Just need the power transformers.
Just need the power transformers.
Schematic
Now that the SIT-1/2 is apparently out of production (at least according to Reno-discontinued), will the schematic be available? Is another part similar to the PASS jfet?
Now that the SIT-1/2 is apparently out of production (at least according to Reno-discontinued), will the schematic be available? Is another part similar to the PASS jfet?
No point really, as the mosfets are a one off batch never to be manufactured again.
Just build one of the other single ended circuits Papa has published, there are many to choose from.
Just build one of the other single ended circuits Papa has published, there are many to choose from.
With Mr Pass you get solution to subscribe in near future
to buy new SIT-3 pcb's or kit with Sony vfet's.
http://www.diyaudio.com/forums/pass-labs/307071-what-do-those-2sj28s-21.html#post5108495
Kindest regards
It seems to me that the schematics of these have been around for a long
time, in fact I think the owner's manual has enough detail. It's a very simple
circuit - the SIT is biased by either a CCS or some big resistors. Since you
don't have a SIT-1 transistor anyway, the exact resistor values and such
would not be very useful.
The basic circuit of the SIT-3 will accommodate other devices, and I intend
to make the circuit and the Sony VFETs available for DIY. This will be
a Common-Drain application. Those who want Common-Source should
look at projects already in this forum.
Jeez, I take a just few months off from the forum and there are all kinds of exciting projects in the works! 😀
We must be experiencing Bucky's Knowledge Doubling Curve in action!
We must be experiencing Bucky's Knowledge Doubling Curve in action!
Thanks.
It seems like the essential difference between SIT-1 and SIT-3 is the presence of the transformer in the SIT-3 -- would this give more of an "M2" sound to the SIT-3 compared with SIT-1?
I was going to get a SIT-1 from Reno but Mark talked me into the J2 and it sounds so great ... but I have a stash of N100 and R085 ... so could theoretically build my own ... I guess I'd have to build a J2ish and then buy a SIT-1 ...
It seems like the essential difference between SIT-1 and SIT-3 is the presence of the transformer in the SIT-3 -- would this give more of an "M2" sound to the SIT-3 compared with SIT-1?
I was going to get a SIT-1 from Reno but Mark talked me into the J2 and it sounds so great ... but I have a stash of N100 and R085 ... so could theoretically build my own ... I guess I'd have to build a J2ish and then buy a SIT-1 ...
He is running a rescue for stray SITs. Shhh don't tell him about all the stray capacitors 😉
:bowdown:
The difference in sound would be two-fold, it is a Common-Drain circuit and
uses a transformer, but a different one.
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