Non-repairable? So is that white power supply resin-potted or... What exactly makes it non-repairable?
Making your own mains power supply involves rating and certification costs and time; it likely ended up cheaper, but more importantly, less of a (bureaucratic) hassle.
No, that is 'how they are supposed to be'.Are you sure it's not a fake?
That is quite a surprise -- I've always been led to believe that Neumann made top quality equipment?
Are you sure it's not a fake?
The funny thing is that the 'Chinese' power supply delivers 12 volts (if I remember correctly), but on the PCB there is a switching voltage converter that produces +70/-70/+32 and +5.2 V.
It makes sense, since the most problematic aspect is getting the international certifications for the parts that are connected to mains.The funny thing is that the 'Chinese' power supply delivers 12 volts (if I remember correctly), but on the PCB there is a switching voltage converter that produces +70/-70/+32 and +5.2 V.
It's a mic with a tube in it..., like Behringer does with some of their preamps.they advertise the M149 as a Tube mic and in reality there’s a lot of solid state circuitry used in the circuit, donuts not even a tube mic, it’s an hybrid
It's a mic with a tube in it..., like Behringer does with some of their preamps.
It makes sense, since the most problematic aspect is getting the international certifications for the parts that are connected to mains.
Apart from the use of an OEM switcher, the rest of the construction looks like it was assembled by an amateur hobbyist -- the cable 'looming' looks pretty crude.
I think there was a form of interaction between the power supply and the microphone.Ruud do you remember if to measure the correct PSU output voltages the mic has to be connect to the PSU?
Or can I measure without the mic connected?
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