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Old 9th April 2020, 09:49 PM   #2541
dBel84 is offline dBel84  United States
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Congrats to Mike for the publication in AudioXpress - great to see this work being recognized beyond our community.

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Old 10th April 2020, 12:56 AM   #2542
Zen Mod is offline Zen Mod  Serbia
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Old 10th April 2020, 11:49 AM   #2543
Michael Rothacher is offline Michael Rothacher  United States
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Old 11th April 2020, 04:55 PM   #2544
audiodesignguide3 is offline audiodesignguide3
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Default Starting now with Hammond 195T5

I am starting now the experiments with Inpol / Mofo using a very good choke the Hammond 195T5 100mA 5A
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Old 11th April 2020, 10:17 PM   #2545
jostwid is offline jostwid  Switzerland
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Looking forward to your results
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Old 11th April 2020, 10:56 PM   #2546
vdi_nenna is offline vdi_nenna  United States
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Old 12th April 2020, 03:22 PM   #2547
Cpan is offline Cpan  Italy
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Hi, what should be the input voltage in order to achieve the max power output from big MoFo and small MoFo?

Thanks, Claudio
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Old 12th April 2020, 03:27 PM   #2548
Zen Mod is offline Zen Mod  Serbia
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Old 12th April 2020, 06:00 PM   #2549
ekosis is offline ekosis  Turkey
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Default MOFO style with LATERAL MOSFETS

Hi all,
I built sth like MOFO with 2SJ162 four parallel. Inductor is handmade 75 MH wire diameter 1.40mm. Psu voltage 36v, I=4.0 amps. Both measurements and sound are stunning. Also the psu reversed as required.
My question is that: Iron core or air core is better ?

Regards,
Mehmet.

Last edited by ekosis; 12th April 2020 at 06:17 PM.
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Old 12th April 2020, 09:20 PM   #2550
TungstenAudio is offline TungstenAudio  United States
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I have had some disappointing results with the power supply for my MoFo. I am using the MeanWell RSP-150, 27V. It was sufficient to establish a 2.4 or 2.5 Amp quiescent current at 26V, but has excessive ripple when the amp is being driven by a 1 kHz test signal. I am seeing high levels of distortion (>3%) on the output even with very low power levels. The amp clips badly at 1 Watt. I expected a 150W supply to be better behaved than this.
Adding a 70 uF motor run capacitor to the output of the SMPS made the distortion a little worse. I already have a 100 uF aluminum polymer cap at the power input on the MoFo board, but that is all right now. Looks like I need to build a CapMx if I want to use these SMPS.
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