Hello all.
I am building a preamp and have a hifi 2000 chassis with aluminum front panel.
For volume control, i have chosen the khozmo 64 step attenuator with remote control https://khozmo.com/64_steps_relay_khozmo_attenuator.html - it comes with an LED display board and a little optical reader for the remote
I am wondering what material and installation suggestions people have on how it can be mounted on the chassis front panel. What are my options? suggestions welcome. thank you all in advance!
I am building a preamp and have a hifi 2000 chassis with aluminum front panel.
For volume control, i have chosen the khozmo 64 step attenuator with remote control https://khozmo.com/64_steps_relay_khozmo_attenuator.html - it comes with an LED display board and a little optical reader for the remote
I am wondering what material and installation suggestions people have on how it can be mounted on the chassis front panel. What are my options? suggestions welcome. thank you all in advance!
Ask Khozmo to sell you a faceplate. It was surprisingly cheap. I then clamped it in place, drilled the four mounting holes and then proceeded to use the faceplate as a template for the rest. Worked a treat! Came out perfectly IMHO.
I made a second preamp and it came out as good as the first. Make sure you leave a little extra clearance for the volume shaft bushings. I had to enlarge the bushing holes a bit on the first one so the shafts didn't rub on the circuit board.
I used a dual mono set-up he sells.
Don't forget to ground the body of the unit separately from the ground lug on the PC board. In my case, both hummed until I did that. They didn't ground properly via the mounting nut on the front.
I made a second preamp and it came out as good as the first. Make sure you leave a little extra clearance for the volume shaft bushings. I had to enlarge the bushing holes a bit on the first one so the shafts didn't rub on the circuit board.
I used a dual mono set-up he sells.
Don't forget to ground the body of the unit separately from the ground lug on the PC board. In my case, both hummed until I did that. They didn't ground properly via the mounting nut on the front.
If legibility was the priority, I'd cut out a window, and put the LEDs behind a chunk of blue acrylic.
But the disappearing display effect is cool. You could eliminate the visible mounting screws by attaching the display board to brackets or a subchassis held in place by the knob bushings.
But the disappearing display effect is cool. You could eliminate the visible mounting screws by attaching the display board to brackets or a subchassis held in place by the knob bushings.
Legibility seems fine with this method and I'm not sure if placing the display behind dark acrylic would improve things. Trying to mount the display with brackets or a sub-chassis just added too much complexity for me as I tried to align the bushings and the attenuator units. I agree I could have hidden the screws better.