of course!
generally ....regarding availability ... feel free to make your own pcbs , if you are enjoying in that ; if there is any problem , I will help , naturally (I mean with everything else except pcb troubleshooting - I'm pretty much unable to do that , due to fact that I'm Holmes in that area almost every day in my work , so I'm sorta fed-up
)I will make offer - similar to SissySIT and Babelfish M25 - meaning - at least two kit levels
#1 should be bare pcb with presoldered SMDs , including 4pcs/channel input 2SK2145BL buggers
#2 should be pcb with presoldered SMDs , including 4pcs/channel input 2SK2145BL buggers, plus all parts for populating pcbs , including IRFP150 outputs
0 series pcb done its duty - changed few details , fixed one mistake , so development finished from that point
today , funny day , tests with Semisouth down , and after that - listening tests ....... in both interesting iterations - SJEP down , and IRFP down
edit: I'm positive that I'm going to bring at least 5 sets of #1 for BAF raffle
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Babelfih J2 , SJEP120R100 down
Ha , surprise!!!!
(or not )
with already presented iteration with both output positions occupied with mighty IRFP150 , we are having nice Pleasure Machine , with nice and cozy low THD ...... but! - when SJEP120R100 is introduced in lower output position, we got Pinpoint Machine
Ha , surprise!!!!
(or not )
with already presented iteration with both output positions occupied with mighty IRFP150 , we are having nice Pleasure Machine , with nice and cozy low THD ...... but! - when SJEP120R100 is introduced in lower output position, we got Pinpoint Machine
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same , 4R load
just to state - I have no intention to play with MOX values in output vertical , to invoke 2nd harmonic above 3rd ; I have what I intended with poor man's iteration and that's it
just to state - I have no intention to play with MOX values in output vertical , to invoke 2nd harmonic above 3rd ; I have what I intended with poor man's iteration and that's it
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exactly
though , let's wait to listening test .......... even if I can be sure at least 90% in prediction
So it looks like you are deliberately mismatching output transistor types in a P-P output stage. And the results for 1Watt out indicate that the H2 has fallen to the same level as H3 from the previous configuration.
Interesting
Edit: Or is this actually a single-ended output stage with the IRFP150 as the current source?
Interesting
Edit: Or is this actually a single-ended output stage with the IRFP150 as the current source?
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well , it's pretty much all clear from schematics and graphs
also , from few intention notes in post #1 , it's clear what I wanted to achieve
regarding question what it is - name of the game is J2 Babelfishing , and J2's OS is stage loaded in drain with sorta active CCS , in form of Mu Follower ....
also , from few intention notes in post #1 , it's clear what I wanted to achieve
regarding question what it is - name of the game is J2 Babelfishing , and J2's OS is stage loaded in drain with sorta active CCS , in form of Mu Follower ....