completely unknown, never used part
Unknown, new parts that NP likes. Sounds like uncovering a sunken treasure ship.
TO-3 Bipolar Darlington ? https://www.mouser.com/datasheet/2/68/2n6050-6052-1518563.pdf
Soundhappy,
Nelson replied to you, long ago, that remaining transistors are all (supposedly) Sony parts:
Link - https://www.diyaudio.com/forums/pass-labs/307071-2sj28s-31.html#post5462585
He also said that: „The output stage is a follower, and has a socket for different front ends“
Link - https://www.diyaudio.com/forums/pass-labs/307071-2sj28s-35.html#post5638929
So, there were changes in design, as there is no socket on the pictured board.
He also said that this iteration will be closest you could get to SIT-3.
Link - https://www.diyaudio.com/forums/pass-labs/307071-2sj28s-30.html#post5354721
Add to that:
The last round of Sony VFETs will be followers, but special and unique
It’s going to be surprise
You will be amused
So, I’m sure we all will be veeery amused.
Nelson replied to you, long ago, that remaining transistors are all (supposedly) Sony parts:
Link - https://www.diyaudio.com/forums/pass-labs/307071-2sj28s-31.html#post5462585
He also said that: „The output stage is a follower, and has a socket for different front ends“
Link - https://www.diyaudio.com/forums/pass-labs/307071-2sj28s-35.html#post5638929
So, there were changes in design, as there is no socket on the pictured board.
He also said that this iteration will be closest you could get to SIT-3.
Link - https://www.diyaudio.com/forums/pass-labs/307071-2sj28s-30.html#post5354721
Add to that:
The last round of Sony VFETs will be followers, but special and unique
It’s going to be surprise
You will be amused
So, I’m sure we all will be veeery amused.
Soundhappy,
Nelson replied to you, long ago, that remaining transistors are all (supposedly) Sony parts:
Link - https://www.diyaudio.com/forums/pass-labs/307071-2sj28s-31.html#post5462585
You think this amplifier is build with 4 pcs. of Sony in TO-3 package ?
You can re-read again , my question was about other not Vfet transistors Amusing
It’s going to be surprise
You will be amused
Hmmm...
Surprise + amused = Surmused by Nelson Pass
Available soon at a diy store near you!
Last edited:
But not an easy design.
Can't believe :^)
Attachments
Was NP a strip teaser in a past life?
He is a man of many talents and a very busy one. Usually, methods involving pitchforks, torches and camp fires around his residence tend to speed up things a little. Maybe we can ask USA fellows to arrange something?
Was NP a strip teaser in a past life?
nope in past life
in this life !
I still have a couple pairs of salvage VFETs..
Me too, those Vfet's in the drawer screams to do audio work and run's hot inside of the amplifier
Woow the new Papa amp just posted!!
http://www.firstwatt.com/wattsnew.html
http://www.firstwatt.com/wattsnew.html
Woow the new Papa amp just posted!!
http://www.firstwatt.com/wattsnew.html
I do not see anything new on FW since 2019
- Status
- This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
- Home
- Amplifiers
- Pass Labs
- What To Do With Those 2SJ28's