New NRF Single channel transmitter

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RON
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Posts: 682
Joined: 12 Jun 2017, 15:09
Location: Stokesley North Yorkshire

New NRF Single channel transmitter

Post by RON »

Ive just finished my Nrf S/C transmitter,
The case is a hammered finish courtesy of CamdonBoss enclosures.
It's quite a small casing measuring only 63x112mm and about 25mm depth. I had to 3d print a 3mm gasket for it as the meter was just slightly too deep for the case, printed in ivory colour to match the button.
Electronics were straightforward apart from it being really tight for space. No PCB, just wire on the fly and hot melted into place.
I done the usual mod to the meter using a zener diode and a resistor. Thanks to PaulJ for the Futaba meter, works beautifully.
Ive used a different technique to make the nameplates, they are black anodised aluminium business cards that ive laser etched the lettering and graphics on. The difficult part was cutting the plate once etched, not easy to keep flat and get perfectly straight, ive done the best job I can on those but very happy with them, the main advantage of this method is you can't scratch them off and are very nice looking.
Its powered by an 850ma 2S lipo which gives a good endurance.
Antenna bezel and ivory button are both 3D printed

The DS438 switch I had, had a problem, as in the plunger was broken at the top so no button could be attached, Ive managed to 3d print another for it.
Photo and STL file below including the button too

Im very pleased with this build, it feels extremely solid and a quality product, also seems to be well balanced and just feels right in your hand.
Don't you just luv proper single channel? Thanks for reading

Ron

Click images for higher resolution phots
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DS438 PLUNGER2.stl
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DS438 PLUNGERBUTTON2.stl
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G0MBV Class A Radio Amateur, North Yorkshire
HenkB
Posts: 50
Joined: 01 Feb 2019, 11:19
Location: Harderwijk, The Netherlands

Re: New Nrf Single channel transmitter

Post by HenkB »

Nice! Pretty little thing.
What means R.L.B.?
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RON
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Posts: 682
Joined: 12 Jun 2017, 15:09
Location: Stokesley North Yorkshire

Re: New Nrf Single channel transmitter

Post by RON »

Hi Henk

Thankyou for your comments,
R.L.B are my initials


Ron
G0MBV Class A Radio Amateur, North Yorkshire
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tiptipflyer
Posts: 406
Joined: 16 Feb 2018, 22:49
Location: Germany

Re: New Nrf Single channel transmitter

Post by tiptipflyer »

Great transmitter Ron, very nice work.
Frank
Graham G
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Joined: 03 Jul 2022, 08:27

Re: New Nrf Single channel transmitter

Post by Graham G »

Any chance of a picture of the inside or will that give away trade secrets 🤣
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_AL_
Posts: 170
Joined: 17 Feb 2018, 01:09
Location: Sydney Australia

Re: New Nrf Single channel transmitter

Post by _AL_ »

Very very nice.
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Shaun
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Joined: 15 Feb 2018, 21:49
Location: West Yorkshire

Re: New Nrf Single channel transmitter

Post by Shaun »

Cracking job as always .👍
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Shaun
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Location: West Yorkshire

Re: New Nrf Single channel transmitter

Post by Shaun »

Love the labels
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Wayne_H
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Location: Temora, NSW. Australia
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Re: New NRF Single channel transmitter

Post by Wayne_H »

Super job again, well done Ron 👏

When do we see the matching custom storage box?? ;)
Cheers,

Wayne
Once a Retrobate, always a Retrobate............ ;)
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RON
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Joined: 12 Jun 2017, 15:09
Location: Stokesley North Yorkshire

Re: New NRF Single channel transmitter

Post by RON »

Wayne_H wrote: 26 May 2024, 18:17 Super job again, well done Ron 👏

When do we see the matching custom storage box?? ;)
Here you are Wayne, especially for you :lol:

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G0MBV Class A Radio Amateur, North Yorkshire
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