Deepdark
Well-known member
Hi
A friend of mine have 8 Tascam preamp strip, taken from a Tascam M-35. They are in good shape, minus the fact the previous owner sells all the input transformer. Anyway, they are 1:5 mic transformer, Not that hard to find. I'll take a look at Edcor. What he want to do is mounting all those strips on a wooden custom rack. The box is easy to do, finding the rack strip to bold all the card is easy, too. But, what I Wonder is about the shielding, grounding, etc.
What I had in mind was to bolt metal sheets on all wooden face and once bolted together, it would make a king of faraday cage. And, we could even bolt the rack strips to one of the metal sheets, so once all preamp strip will be bolted on the rack, theire will be contact with the rest of the metal. Am I overthinking or it's a good idea? Any better one?
Secondo, I will need to make a PSU. So far so good, the Tascam is about 30W for the complete mixer, something about 60VA. I only have the 8 preamp strips, so maybe something like a 50VA power transformer would be ok. But, how do people manage to power up and ground all cards with these kind of construction? The psu will be made in a separate box. I could make an XLR connection between the rack to the psu. once Inside the rack, what is the easiest, or "better" way to feed all cards with voltages and ground?
A friend of mine have 8 Tascam preamp strip, taken from a Tascam M-35. They are in good shape, minus the fact the previous owner sells all the input transformer. Anyway, they are 1:5 mic transformer, Not that hard to find. I'll take a look at Edcor. What he want to do is mounting all those strips on a wooden custom rack. The box is easy to do, finding the rack strip to bold all the card is easy, too. But, what I Wonder is about the shielding, grounding, etc.
What I had in mind was to bolt metal sheets on all wooden face and once bolted together, it would make a king of faraday cage. And, we could even bolt the rack strips to one of the metal sheets, so once all preamp strip will be bolted on the rack, theire will be contact with the rest of the metal. Am I overthinking or it's a good idea? Any better one?
Secondo, I will need to make a PSU. So far so good, the Tascam is about 30W for the complete mixer, something about 60VA. I only have the 8 preamp strips, so maybe something like a 50VA power transformer would be ok. But, how do people manage to power up and ground all cards with these kind of construction? The psu will be made in a separate box. I could make an XLR connection between the rack to the psu. once Inside the rack, what is the easiest, or "better" way to feed all cards with voltages and ground?
