Langstone Discussion Forum

[G1BVI]

Looking on ideas to box a Langstone.

I am going to use an official Rpi 7 inch screen (when they become available again)

Google shows a few interesting ideas but the ones I like are housed in an enclosure that looks about 12inches wide X 5 inches high x ?? deep. with a very large tuning knob to the right.

I messaged one builder with such a design to determine the enclosure dimension and source to no avail.

Could any builders with a similer design please let me know what box they used.

I have access to a CNC M/c at work so my preference is metal rather than go the 3D printed route.

Also unclear (until I get the display how it is mounted.)

Some builders reccomend a VOGAD, is there a reccomended circuit design?

Thanks all in advance

73

Nick

[g0mjw]

Remember - any box you initially choose will be too small. Ask me, ask Dave, ask almost anyone.

This is what I used. An old case

Langstone.jpg (1.29 MiB) Viewed 19020 times

I suppose it is about 10x12x5 and a squeeze. If you look on my web page projects section, you might find the PCB I made for this useful. You will have to order your own though. http://www.mike-willis.com/projects.html

Mike

[gm1mfn]

....
Some builders reccomend a VOGAD, is there a reccomended circuit design?

...

There are lots of very cheap designs on eBay using the SSM2167 which might be worth looking at.

[G1BVI]

Thanks both
You are right about the size of box Mike, but bench space is limited.

Just been notified that after a long wait display is on its way.
Trying to decide what I will use it for.
Considering multiple switched outputs at the moment with filters in the box.
I have neither yet.

My Portsdown 4 used a Smartpi case but that is too small.

Your pages have been bookmarked tks.

Re the mike amp, I tried one of those a few years back on my FT818, and its a pre amp.
Still got it somewhere so might re purpose it.

73

Nick

[radiogareth]

Nick, I have two PD4's one in a sloping front instrument case mounted upside down, 7" screen and another which is just a 5" DXRobot screen and a passive heatsinked PRI4 with all the USBs on one side plus a RPI camera and a SMPSU for the 5V. That way I can plug in whatever I need, so mouse, audio dongle and a Pluto/Lime and it becomes a Langstone. Add a C920 and it becomes a PD4.
Pictures if you want.....
Gareth

[G1BVI]

Hi Gareth
I had assumed that the Langstone was stand alone initially but now I see its also been integrated into the PD4.
My Only PD4 is mounted in a Smartpi Case with a lime mini.
kike you I plug USB into the side for camera and audio dongle.
What I want to do is make something that contains and hides the majority of the wiring.

The langstone needs a pluto (someone is always quicker than me at grabbing any that come up for sale hi hi) but from what you have just said the penny has just dropped and what I need to build is actually a PD4 with a pluto in a larger box.. so I can add my preferred rotary knob and left right buttons etc for a Langstone but this would then have dual functionality of being a PD4 or a langstone. plus.........

I saw some of your pics on here, and I did wonder why you had included a picam on a langstone.
Now the fog has lifted.I

I will pm you my email address if you could send me some pictures would be appreciated.

PS Rpi 5 turned up last week

73

Nick

[G4FRE]

i use an SL6270 in mine circuit as per the g4jnt PWM Radcom article

I use the same circuit to modulate the 6cm FPV WBFM Voice transmitter

Dave
G4FRE

Some builders reccomend a VOGAD, is there a reccomended circuit design?

Nick

[gm1mfn]

i use an SL6270 in mine circuit as per the g4jnt PWM Radcom article

I use the same circuit to modulate the 6cm FPV WBFM Voice transmitter

Dave
G4FRE

Some builders reccomend a VOGAD, is there a reccomended circuit design?

Nick

The SL6270 was a great chip and I used it in several designs about 30 years ago. Sadly it has been unobtanium for quite a long time now.

[G8GKQ]

The SL6270C is available from a number of eBay sellers for about £7.00. They might not be genuine, but I have used 2 and they seemed OK.

Dave, G8GKQ

[G4FRE]

I got my Initial SL6270 from G3AAF at a microwave round table

Having used them all, I got 4 more from ebay from china with no issues

Dave
G4FRE