he was referring to my offer to make PCBs for said pots
https://www.diyaudio.com/community/threads/alps-black-beauty-pots.395285/page-2#post-7359567
@PierreQuiRoule I got your feedback and increased the spacing. I will make a quick order with Osh-park and see that they work as expected, if so I'll make a larger run and sell that at (pretty much) cost
I would recommend that the ground planes NOT be electrically connected to the mounting holes.
Allow plenty of clearance space for the nut and the metal surface on the other side of the board,
so there is no chance of contact between them and the ground planes on both sides.
Otherwise, ground loops can be formed.
@rayma The mounting holes are not electrically connected (there is no pad there, just a hole in the PCB).
I increased the the clearance sufficiently and I think it should be good now.
I did one additional change though and that is to not connect the GND of both channels, in case the design requires that they be combined elsewhere. (IN/OUT is still connected though)
IN1/OUT1 are the 4-pin Molex KK connectors, for the input and output --
CH1_SIGNAL / CH1_GND / CH2_GND / CH2_SIGNAL
I increased the the clearance sufficiently and I think it should be good now.
I did one additional change though and that is to not connect the GND of both channels, in case the design requires that they be combined elsewhere. (IN/OUT is still connected though)
IN1/OUT1 are the 4-pin Molex KK connectors, for the input and output --
CH1_SIGNAL / CH1_GND / CH2_GND / CH2_SIGNAL
I mean the single pins that are below the 4 pin connectors.
They both connect to the ground planes, and are both labeled: Conn_01x01
For shield connections, perhaps?
They both connect to the ground planes, and are both labeled: Conn_01x01
For shield connections, perhaps?
Got it. Those were additional GND connectors, with the intention to be used if you wanted to connect both channel GND to a single point, but I removed them since I separated the GNDs of each channel
No problem folks. I ordered a small quantity from OshPark to ensure the physical dimensions (I created the footprint using a caliper so could be off potentially).
Once everything is validated I'll make a larger order and post with purchase options
Once everything is validated I'll make a larger order and post with purchase options
OshPark order took a while. I got them yesterday and fit was 95% but not perfect. I made adjustments and ordered a batch from PCBWay (Black PCB with HASL) which I expect to receive in the next week or so. Please PM me directly if you're interested.
PCB's will be $4/ea.
They will go in a bubble mailer so I estimate around $3-$4 for USPS First Class.
I will post pictures of an assembled unit once I receive them.
PCB's will be $4/ea.
They will go in a bubble mailer so I estimate around $3-$4 for USPS First Class.
I will post pictures of an assembled unit once I receive them.
