Better if you guys plan a group buy , this will reduce costs and enable others who find difficulty in making double sided PTH[plated through hole] boards, to enjoy the amplifier.
Copper thickness should be 35micron required minimum on both layers and plating in holes is needed as there are Vias in the PCB which connect both layer tracks at some point.
The amp is very easy and required parts are very easy to get.
BC546/556, MPSA42/92, MJE340/350, 2SC5200/SA1943, UF4007, 4N25 OPTO, LM393, NE5532 are some of the main items you need for this, apart from this are usual passive resistors and capacitors.
I will provide construction details after i will see a PCB from anyone of you.
Maybe it is better to supply us as kits so we have no problem colecting parts.
is this some kind of TRADE SECRET?Copper thickness should be 35micron required minimum on both layers and plating in holes is needed as there are Vias in the PCB which connect both layer tracks at some point. VIAS IN THE PCB?
can home made pcb meet this?
if pcb vias not met,will the amp still stable?
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Copper thickness should be 35micron required minimum on both layers and plating in holes is needed as there are Vias in the PCB which connect both layer tracks at some point. VIAS IN THE PCB?
can home made pcb meet this?
if pcb vias not met,will the amp still stable?
There is no Trade secret, This is normal thing in double sided PCB where VIAS are used............to connect one or more layers.
IF Vias are left unconnected, the circuit may not work. This is not you normal single sided pcb.
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Jay, in those PDFs TOP and BOTTOM. The PCB boundary marking is touching the traces, don't include the boundary marking while etching the pcb, other wise a short will occur. The boundary layer is either keepout layer or mechanical layer.
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Jay, in those PDFs TOP and BOTTOM. The PCB boundary marking is touching the traces, don't include the boundary marking while etching the pcb, other wise a short will occur.
Ty for the Info,
Pls check
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TOP AND BOTTOM are Perfect now..........But you can keep boundary in TOP OVERLAY
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