jose

130K ... nice paperweight. ?

Happy Birthday!

I think you're not being "fair". I means: My favorite amplifiers are the BH/GG but comparing them with the CFAe is like comparing apples with oranges. I always try to make a comparison with something that has a certain similarity (in this case, solid state amps, not hybrids) so I think of the Carbon more than the BH / GG. Finally, I think that this amplifier is new and it has had less "development time" than other designs by Kevin, (although Joachin has done an excellent job with his modifications) I don´t know exactly why . Perhaps it is not very showy ot too exotic... I hope not to offend anyone.

I prefer "Revolver" ( IMO the best album of the boys of Liverpool) but "Abbey Road" is no bad.

We haven´t talked much about this amplifier. ? I usually need some time to adjust to the sound of a push-pull amplifier. Once time passes (hours) I feel very comfortable with him. Honestly, I don´t see any flaw: it has a fairly defined and balanced sound, enough power... to put something negative, the only problem I see is that not all adapt to the sound of a push-pull amplifier (paradoxical) ... But that's what Carbon is for.

These people from Pitchfork usually show good groups. I have been subscribed to your channel for some time.

Here Joachin explains how to do this in the simplest way.

Happy birthday!

Descansa en Paz Niki

"So ya Thought ya Might like to go to the show..."

I rotated the Jfets. I don´t notice any change. Good opportunity to check Bias, voltage, tighten connectors ... everything is correct. The only thing I have noticed is that the plates have lost a bit of bright green due to the heat.

Yes, I checked my amps and mi notes and i was wrong. I've been using them like that for a while. Now, we know empirically that it works inverted. I found this photo. It was the one that confused me: What a shame!!!!

Happy Birthday!!!

Sorry Michael. Last night was very late when I answered I believe that the Drain pin is correctly connected to the Collector pin. Edit: Maybe I'm confused ... I need to look again at the transistor meter to be able to identify the pins. To be connected to the opposite, what makes clear is that they work

In my Dynalo. I think you can see it better here: Yes, you are right I rotated the photo when inserting it in the post.

N channel on bottom (2SK170) P channel on top (2SJ74) Emitter – (E) >> Source – (S) Base – (B) >> Gate – (G) Collector – (C) >> Drain – (D)

Finally, at home.?

Off topic: Very interesting. For a while I thought it was some kind of writing like the one used in the movie "Predator"

Thanks for share. ?

For Jfets Idss measures I prefer use this:

They are something different from yours. 2SJ74GR bought in AMB: LSJ74 grade B bought in DIYAudio Store: 2SJ74GR bought from a member of DIYAudio: I have measured some units of each group and they all very similarly.

me too!!!

Very interesting. I had not noticed until now. I have reviewed some J74 of my inventory (including a Linear Systems LSJ74) with several transistor testers and S and D appear reversed as well. Edit: If they are all symmetrical, could you connect them to the opposite?