Extron case

There has been a bit of discussion on the list about Extron cases.  These are aluminium cases that can be found with a search on eBay that come with other componentry that may be useful for a uBITx builder.

Vince Vielhaber KA8CSH found one that was big enough for a Bitx and would be a good fit. The BITx40 fits quite comfortably in it (after moving the power supply), but the only way the uBITx will fit is if the raduino is detached.  As you can see in the attached pics, it has plenty of BNCs for other projects and a power supply. Being 12v and 5v, the 7805 on the raduino could potentially be eliminated (provided, of course, the supply puts out over 1 amp).


Lowering the height of the uBITx

Sajeesh VU3PSZ  felt that the height of his case could be reduced further as there was lots of space to spare.

He soldered a separate connector below the PCB and straightened the leads on the Raduino board so that it plugs in horizontally underneath the main board.   This saves around half an inch in the required height of the enclosure.

Reference #1      Reference #2

A nicely presented Hammond 1402 case

Dave WI6R shows off his Hammond 1402DV (V for Vented since the heat sinks are inside).

It’s tight with the Volume Control mounted in between the display and the extrusion. So the PCB is mounted as close as you can get to the right side extrusion, then mark for the display and pot, with the encoder centered between the display and right side.

Dave used his own connectors for Mic, Headphones and Paddle and a Power Pole power connection on the rear panel.  On the far left is the stock BNC antenna connector.

There was room to later mount a USB cable as show.   Dave thinks he should have centred the Power Pole connector with the USB rear panel connection, but that’s what happens when you add things in later …


You’ve got mail: a mailbox enclosure

Scott K2CAJ  was looking for a suitable metal case for his uBITX and ended up wandering down the mailboxes section of the local Lowes (a large hardware supplier to the domestic market in the US).

“They had a slim upright letterbox, the Gibraltar City Classic, for under $13.  The letterbox has a recessed back panel that limits the interior thickness to 2.5″, but all you have to do is pop the panel it off and turn it around, and you get the full 3″ of space. I added some rubber feet and used some scrap metal to hold the jacks and knobs on the same side as the board. The front lid neatly flips open to reveal the goods”, Scott said.

These cases are available in bronze and black, without any “US MAIL” detail on them.  There is a snap-on plastic fleur-de-lis if you want it, but beyond that it’s just a case.

Scott says “Now I can tell people that I got my uBITX in the mail, wah wah wahhhhh….”

An Origami Case for the uBITX

Mitani Misaru JE4SMQ’s ubitx has been built in an ORIGAMI paper case (15 cm square) which cost just 100JPY(about US$1).

Mitani did not use an Encoder with a push switch but substituted a separate push switch for the encoder button switch.

Ver1.00R software has been installed and modified as follows:

1. The uBITx transmits on the Japanese Amateur bands only.   If you tune out of the band the PTT/CW Break In simply doesn’t work. This is required to meet Japanese regulations.

2. The BAND Select mode follows the Japanese Band Plan.

3. In CW mode the Mic PTT is used for keying. This is always in straight key mode. If a Paddle is connected the keyer can be used by adjusting the menu menu setting.


Nice looking case

Sajeesh VU3PSZ shows off his new uBITx case design alongside his older BITx40.   A nice pair of rigs.   His blog item shows all the details, including a home made jig to achieve the folds in the aluminium.   This is definitely worth a look if you are considering a home-brew aluminium case for your uBITx.


Front panel layout ideas

Vic WA4THRI always enjoy seeing how others have built their BitX’s and has pointed out ideas that others might find useful:

1. Almost everyone places their tuning control to the right, but if you place the Raduino to the right you can easily update and play with the software by just plugging your computer into the USB port [EDITOR:  With a penetration on the right hand side wall of the enclosure for insertion of a mini-USB-B connector.]

2. It is hard to beat the value of the Banggood EF01 instrument case. If you turn it upside down and eliminate attaching the hard plastic feet you have a smoother mounting surface for circuit boards and can use the vent holes for a speaker grille.  Add some stick-on soft plastic feet on the “new” bottom.

3. Using the second line of the BitX display to label switches and controls saves having to find a way to place labels on the front panel.



A nice looking aluminium enclosure


And another aluminium case suggested by wishbone_aaa:


Jim Sheldon, W0EB says:

“I’ve got one on backorder for my third uBITX. The uBITX should ship pretty soon, so I hope the case backorder doesn’t take too long.  I’ve used the smaller versions of this case on other projects and it’s really nice to work with, but the aluminum front and back panels are really soft aluminium. Be careful drilling holes and cutting out the LCD window.”