It remains to make a balanced input and get a balanced amplifier.Need to? I don't know. Can try it in microcap / LTC spice .
The entrance to the OPA1632 , then symmetric channels
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These 2 op-amps are not in anti-phase, they are parallel, outputting the same signal (more or less).
By using two of them, there is no problem with taking care of the fluctuations at the 'joint' point that you were trying to fix/improve with previous symmetrical models.
By using two of them, there is no problem with taking care of the fluctuations at the 'joint' point that you were trying to fix/improve with previous symmetrical models.
I connected the LMK module to the OPS on IRFP240/9240, vozbud terrible up to 1V! at a high frequency.Connected 120 pf capacitor to collector Q5 and 47pf to collector Q6. Both on GND. Didn't really help. Completely got rid of vozbuda installing a capacitor Panasonic BP 100 uf 16V parallel to the capacitor c7 200 pf. You. guys, something here is flawed, most likely the case in the ground loop. All transistors is matching. DC offset 3mv!
Sorry!!!!
Now everything works perfectly, the BIAS current of 115ma. in the headphones is absolute silence.full
Now everything works perfectly, the BIAS current of 115ma. in the headphones is absolute silence.full
Russian-American version of LMK. LMK MM .
I'm shocked . throw off the photo,I'll save it on my forum.
I'm shocked . throw off the photo,I'll save it on my forum.
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Why you are shocked? 🙂
It's an LMK (or is it Wiederhold ?) + your's (Maxim's) voltage shifter/buffer (or whatever it's called) + Quasi output + Steve's novel LED quasi voltage biasing of the lower half 🙂
Improvements adding up since 1977, from all continents except Antarctica 🙂
It's an LMK (or is it Wiederhold ?) + your's (Maxim's) voltage shifter/buffer (or whatever it's called) + Quasi output + Steve's novel LED quasi voltage biasing of the lower half 🙂
Improvements adding up since 1977, from all continents except Antarctica 🙂
I was afraid that the wires would whistle.Although the stability margin is decent. There were doubts about success.
>How is crossover distortion? Did you check on the oscilloscope?
Actually, what was built is not quasi, right?
Your OPS is complementary?
Actually, what was built is not quasi, right?
Your OPS is complementary?
But Prohodimez wrote that he connected IPS to pre-existing OPS with complimentary hexfets.
So what he tested is not exactly schematic from #1048.
He just tested input + VAS....
>I connected the LMK module to the OPS on IRFP240/9240
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Но Проходимез написал, что подключил IPS к уже существующим OPS с дополнительными шестигранными полями. Так что то, что он тестировал, не совсем схема из # 1048. Он только что проверил вход + VAS
So what he tested is not exactly schematic from #1048.
He just tested input + VAS....
>I connected the LMK module to the OPS on IRFP240/9240
===================
Но Проходимез написал, что подключил IPS к уже существующим OPS с дополнительными шестигранными полями. Так что то, что он тестировал, не совсем схема из # 1048. Он только что проверил вход + VAS
Oh, about that. He checked the most important thing. The scheme works . we will be waiting for photos and information.