F6 Amplifier

THere are folks in both camps, from what I understand. JBL tends to like higher power amps to sound best, where as Altec, with lightweight cones and lower power handling like FW style amps. I don't dispute your thoughts. Too new to do that. Just relaying what I have heard. Pop over to Horn/TL combo to discuss. I would thoroughly enjoy the company. I have JBL LE15 and have been watching for 2235, which is considerd king, by many.
 
I was staring at the schematics today trying to decide how I will proceed with this after receiving Mike's pcbs.
One thing that I was thinking was where to get the 2sj74 and then it kind of occurred to me that perhaps we could use a 2SK170 in a DCB1 kinda way?
That would perhaps offer better symmetry in the buffer section and would also be in the spirit of F6 part of which is not using complementary parts :)
Not to mention one less semi-dodo to worry about :)
 
Official Court Jester
Joined 2003
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I was staring at the schematics today trying to decide how I will proceed with this after receiving Mike's pcbs.
One thing that I was thinking was where to get the 2sj74 and then it kind of occurred to me that perhaps we could use a 2SK170 in a DCB1 kinda way?
......)

certainly yes

.......
That would perhaps offer better symmetry .......


not certainly


....... be in the spirit of F6 part of which is not using complementary parts :)
.........

certainly yes

.........
Not to mention one less semi-dodo to worry about :)

certainly yes


but - do not forget that same sex Jfet buffer is having sort of double output impedance , comparing to complementary version


why not double Jfets in it ?

;)
 
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Joined 2009
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may be I was not precise enough, sorry....!

I meant the phase change that happened when I choose another value in the FFT window!
 

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