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Mezmerize B1 Buffer Preamp
Mezmerize B1 Buffer Preamp
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Old 3rd February 2019, 09:02 PM   #321
batty is offline batty  Australia
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The pre has a look of Copland about it I think. The power amp will be the M2X when all the parts arrive.
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Old 4th February 2019, 07:13 AM   #322
Stuey is offline Stuey  Australia
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Hi Salas, I have a blue Mez board built up with 10R current setting resistors and wanted to briefly test the PSU section before soldering in the 4 matched fets...can I get away with not sinking the IRFP's for this test? Or will they heat quite quickly?
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Old 4th February 2019, 12:30 PM   #323
Salas is offline Salas  Greece
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Mezmerize B1 Buffer Preamp
Because they are big you can get away for 30 seconds. Have your probes ready, power up, check, power down quickly, move your hands fast like Colibri wings
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Old 4th February 2019, 01:22 PM   #324
Stuey is offline Stuey  Australia
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Cheers, thank you for the quick reply!
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Old 13th February 2019, 06:29 PM   #325
rookakoma is offline rookakoma  Hungary
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Why is the 20k pot impedance ideal for DCB1?
Is the gate capacitance the reason?
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Old 13th February 2019, 09:39 PM   #326
Salas is offline Salas  Greece
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Mezmerize B1 Buffer Preamp
Certainly interacts, it's a bit less transparent with 50k pot in my experience. But still not bad at all.
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Old 14th February 2019, 08:18 AM   #327
rookakoma is offline rookakoma  Hungary
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Thanks Salas.
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