NRGkitz or Veronica 50mW circuit diagram
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- tower block dreamin
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NRGkitz or Veronica 50mW circuit diagram
Just wondering if any of you guys have a copy of either the Veronica or NRGkitz 50mW transmitter design.
- teckniqs
- proppa neck!
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Re: NRGkitz or Veronica 50mW circuit diagram
I haven't but back in the day I heard it was a decent little kit and works very well for what it is.
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- tower block dreamin
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Re: NRGkitz or Veronica 50mW circuit diagram
Had both versions years ago and they were decent units. Just wanted a evening project for a bit of fun.
Remember Kanga had a brief encounter with NRG but just spoken to the guy to see if he had any documentation left but it all went on to guys in London and Blackpool![🤔](https://cdn.jsdelivr.net/gh/s9e/emoji-assets-twemoji@11.2/dist/svgz/1f914.svgz)
Remember Kanga had a brief encounter with NRG but just spoken to the guy to see if he had any documentation left but it all went on to guys in London and Blackpool
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- who u callin ne guy bruv
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Re: NRGkitz or Veronica 50mW circuit diagram
![Image](https://obrazki.elektroda.pl/15_1165781505.jpg)
![Image](https://obrazki.elektroda.pl/80_1165739835.jpg)
Many years ago Polish pirates made their own version called "NRGv6". It's better than original
![Very Happy :D](./images/smilies/icon_e_biggrin.gif)
![Image](https://obrazki.elektroda.pl/6_1212783492.jpg)
![Image](https://obrazki.elektroda.pl/62_1212783530.jpg)
Standard version :
![Image](https://i.ibb.co/DWf0yKL/normal.png)
Micro version :
![Image](https://i.ibb.co/V9bSPcs/micro.png)
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- tower block dreamin
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Re: NRGkitz or Veronica 50mW circuit diagram
1608cc, top man thank you ![👍](https://cdn.jsdelivr.net/gh/s9e/emoji-assets-twemoji@11.2/dist/svgz/1f44d.svgz)
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- proppa neck!
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Re: NRGkitz or Veronica 50mW circuit diagram
done a few years before .two bf494
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- Bton-FM
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Re: NRGkitz or Veronica 50mW circuit diagram
It is in the file
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- proppa neck!
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Re: NRGkitz or Veronica 50mW circuit diagram
I used to build something similar, but using a pair of FETs to really lightly load the tuned circuit. I also experimented with etched coils, but the best results were obtained with a single 12 turn coil, with taps every two turns. The coil was fiddly to make, but when you've made a couple of them, you get the hang of it. The oscillator is remarkably stable and very clean. It's a sort of first cousin of the "Kallitron" oscillator, which I first saw in a G2DAF communications receiver design. The basic version of the circuit was stable to within 100 Hz for an hour at 30 MHz, but adding a "huff and puff" stabiliser was really worthwhile because it would then stay on tune indefinitely.
"Why is my rig humming?"
"Because it doesn't know the words!"![Wink ;)](./images/smilies/icon_e_wink.gif)
"Because it doesn't know the words!"
![Wink ;)](./images/smilies/icon_e_wink.gif)
- Bton-FM
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Re: NRGkitz or Veronica 50mW circuit diagram
where can I buy BF494's?
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- proppa neck!
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Re: NRGkitz or Veronica 50mW circuit diagram
Bf495 bf199 all work
- Bton-FM
- tower block dreamin
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Re: NRGkitz or Veronica 50mW circuit diagram
Thanks radium ![smiley :tup](./images/smilies/me.gif)
![smiley :tup](./images/smilies/me.gif)
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- tower block dreamin
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Re: NRGkitz or Veronica 50mW circuit diagram
Might be missing it on circuit diagram on both but it states VCD1 on standard and on micro it has VC1 & VC2 but what values are theses ?
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- who u callin ne guy bruv
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Re: NRGkitz or Veronica 50mW circuit diagram
VC1 : 22pF green film trimmer (Philips, BC components or now Vishay)
VD1, VD2 : BB809, BB409, BB109, BB329, BB529, KB109 (KV1310 only for ori NRG)
It is described in "wykaz elementów generatora.doc" in nrg6 folder![Wink ;)](./images/smilies/icon_e_wink.gif)
VD1, VD2 : BB809, BB409, BB109, BB329, BB529, KB109 (KV1310 only for ori NRG)
It is described in "wykaz elementów generatora.doc" in nrg6 folder
![Wink ;)](./images/smilies/icon_e_wink.gif)
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- proppa neck!
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Re: NRGkitz or Veronica 50mW circuit diagram
bb105 x 2 facing cathode ,bb204 any vhf varicap will suite .
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- who u callin ne guy bruv
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Re: NRGkitz or Veronica 50mW circuit diagram
Unfortunately not... BBxx9 has higher capacitance... There were tests and You need to put 2 BB105 (even 3 to cover all 88-108 band, if You want to use PLL) in parallel instead one BB809. And also sound quality will drop - only BBxx9 offers the best parameters (same loud on 88 and 108, low noise ratio). Circuit was originaly matched to BB809 not BB105/204.
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- proppa neck!
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Re: NRGkitz or Veronica 50mW circuit diagram
A friend of mine built one of these the other day (as a baby alarm) and just used reverse-biased LEDs for the varicaps. He painted them black to prevent light affecting the frequency (and adding mains hum to the modulation). He had to add a single transistor audio amplifier stage to get enough modulation from an electret microphone. He tuned it to 85 MHz and uses a Japanese band portable to monitor his new daughter!
"Why is my rig humming?"
"Because it doesn't know the words!"![Wink ;)](./images/smilies/icon_e_wink.gif)
"Because it doesn't know the words!"
![Wink ;)](./images/smilies/icon_e_wink.gif)
- Bton-FM
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Re: NRGkitz or Veronica 50mW circuit diagram
I've started building this.What ferrite bead is on the power input?How many turns should I put on it?
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- tower block dreamin
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Re: NRGkitz or Veronica 50mW circuit diagram
People round here are using PMR446 radios on VOX as baby monitors.Albert H wrote: ↑Thu Oct 24, 2019 8:33 am A friend of mine built one of these the other day (as a baby alarm) and just used reverse-biased LEDs for the varicaps. He painted them black to prevent light affecting the frequency (and adding mains hum to the modulation). He had to add a single transistor audio amplifier stage to get enough modulation from an electret microphone. He tuned it to 85 MHz and uses a Japanese band portable to monitor his new daughter!
- yellowbeard
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- Bton-FM
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Re: NRGkitz or Veronica 50mW circuit diagram
thanks yellow beard