[dsavitsk]

Hammond makes a cute little enclosure, the 1455C802, which is just right for holding a 50mm x 80mm circuit board. However, it is very thin (23mm outside), so a board with any components that stick up more than about 15mm won't fit. This, sadly for my purposes, includes Panasonic EJV pots.

So, I am looking for another enclosure that will hold the same size board, but that is slightly thicker allowing slightly taller components. In an ideal world, I'd like another extruded aluminum one like the hammond, but I'd be happy to find a plastic case that would also hold the boards. There are not mounting holes in the board, so being able to slide in like in the hammond, or having some system to hold it in place would be good. Also, there are board mounted connectors on the front and back, so there need to be flat drillable panels on both sides. Ideas?

As a side note, a shorter pot might also work, if there are any good suggestions, and a way to easily obtain them in the U.S., though there are various TO-220 chips that are also too tall, so this is not the best option.

Thanks.

-d

 

[Windchill]

This might be ok, it's a bit wider but about twice as high: Box Enclosure

 

[ATAT]

x2 on boxenclosures. looks quite nice and Allied carries em.

 

[cetoole]

Is this for your latest portable NOS dac with built in headamp? Why not use an Alps RK09 pot, switched or unswitched, if you can source that, or maybe the 9mm Alpha carbon pot that some have raved about, which is available from Jaycar I believe. Is there space to topple the TO220 parts, or could you use something else, like sot223, without too much compromise? That box enclosure looks ok to me, but not nearly as pocketable, both because of size and shape.

 

[MASantos]

I have some boxes available in my local electronics shop. I'll go there next week to get some parts and I'll check the boxes for you.

 

[dsavitsk]

Quote:

Originally Posted by cetoole Is this for your latest portable NOS dac with built in headamp?

Yes. Prototype boards showed up last week. i am still waiting on some parts to find out if it works..

Quote:

Originally Posted by cetoole Why not use an Alps RK09 pot, switched or unswitched, if you can source that, or maybe the 9mm Alpha carbon pot that some have raved about, which is available from Jaycar I believe.

I was hoping for something from digikey/mouser to make sourcing easier, but I'll look into those. I used an alpha once and it was terrible, but maybe i'll have to give it another shot. With a little more fiddling, it seems the EJV can be coaxed into the hammond, but it requires some pushing and the pot touches the top of the case, which I think is okay.

Quote:

Originally Posted by cetoole Is there space to topple the TO220 parts, or could you use something else, like sot223, without too much compromise? That box enclosure looks ok to me, but not nearly as pocketable, both because of size and shape.

There is only one and I think it can be bent over. One the next revision I may try a different part that is a bit smaller.

Agreed that the box enclosure is a little big. It is just wide enough that the pcb won't slide on the rails.

Thanks for the suggestions, if anyone comes across any others let me know.

-d

 

[joostoo]

Im pretty sure the panasonic pot would fit. the panasonic pot is used in the super mini moy, which is fited into that enclosure:

http://www.shellbrooklab.com/mini.html

look at the 4th picture.

 

[dsavitsk]

I had already emailed drew about that, actually, to see if he had some trick. It really is a very tight fit. However, on the side tabs of the pot right where it touches the board there are some extra little metal tabs/bumps (about .5mm tall) that can be snipped off. This helps a bit, but there is still some shoving involved.

-d

 

[ppl]

hammond has some new enclosures you may not have hread about

Data sheet

 

[tomb]

Holy Cow! That 1455"A" series is flat as a pancake!