Wayne's BA 2018 linestage

[andynor]

Coloured wires are so anti-woke.

 

[rolandong]

Sorry if this was already asked and the answer can be found in 42 pages of this thread.
If I'll use this BA2018 as line stage for DAC or pre-amp (not driving headphone),
do I lost any output/voltage swing if I just retain Q8/Q10 (don't replace alternate output) with bigger TO-126 ?

 

[andynor]

Swing is not affected.

 

[_Bert_]

Hello, I'm very much interested in building Wayne's BA preamp. My question is, what are the specs for the volume potentiometer? I've got a brand new Alps 100k lying around...

 

[william2001]

6L6 has some advice about that <here>

 

[Leeuwarden]

Hello, I'm very much interested in building Wayne's BA preamp. My question is, what are the specs for the volume potentiometer? I've got a brand new Alps 100k lying around...

I used a 10K stepped attenuator first then switched to an Academy Audio muses. Difference was more than huge. Succes met bouwen!

 

[_Bert_]

Okay, 10K it will be, thanks en dankjewel 🙂

 

[gary s]

A question for Jim or Wayne, finally getting around to building this pre, I got an early kit that has 2SK209GR grade Jfets supplied, but I notice the latest schematic in the store page is showing 2SK209BL grade. Had a quick scan of the thread,but did not see any posts on this.

What is the correct Idss grade for the Toshiba 2SK209 for this design?

Thanks in advance guys.