shielding enclosure for prototyping
Posted: Sat May 18, 2019 8:31 pm
Now this is turning into "over thinking" for me....lol
Recent threads here about the phono preamp and noise abatement for measurements stirred up months/years ago memories.
Recent discussions also involved using pots and pans from the kitchen for shielding!
Back to my earlier thoughts. Find a decent sized metal box with a cover plate. Poke holes on one end of the box for some XLR's and TRS jacks, as well as some binding posts for power supply. Inside of the box, break out those connectors onto Phoenix screw terminal blocks.
Concept is the ability to stuff a solderless breadboard or a "crackerboard" proto or an actual PCB proto into a shielded enclosure with I/O connections into the rest of the test bench.
I had thought about using a Hammond cast AL box (specs hopefully linked later in this missive), but after Wayne's comments recently, I'm now pondering use of a 10" x 10" x 4" NEMA screw cover pull box because the 16 ga steel should also add some magnetic shielding.
In either case, use the powder coated version for a bit of minimal protection against short circuits inside the box, and concoct a plastic insulator in the floor of the box for better protection against wire nubs stabbing into the bottom of the metal box.
Comments?
Bri
Recent threads here about the phono preamp and noise abatement for measurements stirred up months/years ago memories.
Recent discussions also involved using pots and pans from the kitchen for shielding!
Back to my earlier thoughts. Find a decent sized metal box with a cover plate. Poke holes on one end of the box for some XLR's and TRS jacks, as well as some binding posts for power supply. Inside of the box, break out those connectors onto Phoenix screw terminal blocks.
Concept is the ability to stuff a solderless breadboard or a "crackerboard" proto or an actual PCB proto into a shielded enclosure with I/O connections into the rest of the test bench.
I had thought about using a Hammond cast AL box (specs hopefully linked later in this missive), but after Wayne's comments recently, I'm now pondering use of a 10" x 10" x 4" NEMA screw cover pull box because the 16 ga steel should also add some magnetic shielding.
In either case, use the powder coated version for a bit of minimal protection against short circuits inside the box, and concoct a plastic insulator in the floor of the box for better protection against wire nubs stabbing into the bottom of the metal box.
Comments?
Bri