NRG Pro 4 build instructions

[Bazz]

Hello, looking for some help
I have an NRG PLL PRO 4 PCB but no build instructions.
Dose anyone have them ? Can’t find a thing on the internet... would really like to get this built...
Many thanks

[Albert H]

Pro 4? Did that come from New Zealand?

[teckniqs]

Pro 4? Did that come from New Zealand?

I think I've seen just the PCB for sale from other sellers on eBay.

[MiXiN]

Andrew_kits used to sell the boards on eBay about 2 or 3 years ago, and they were decent. Gold coloured traces.

These used rotary type switches to set the frequency if I recall correctly.

Edit - I tell a lie. They were being sold over 6 years ago. How time flies eh guys! viewtopic.php?t=142
viewtopic.php?t=859

[Bazz]

Brought the pro 4 PCB off eBay years ago. Been collecting dust since... it was just the PCB and no paperwork !

[nrgkits.nz]

I supplied build instructions for the Pro4 to customers who purchased it from me. I designed the upgrades/mods for the Pro4 which Andrew Kits then just copied.

I have since gone on to release new versions, the Pro 5 and now the Pro6 - the Pro4 is no longer available.

[radium98]

an old building , miss some components as the output transistor .NRG kits very clean sound , if i had the wa yto buye an original i will.

[mpx]

If there's any built NRG PRO 3/4/5/6 available, let me know. Would be interested in a few boards, plus any PAs or whole built TX. Cheers

[MiXiN]

If there's any built NRG PRO 3/4/5/6 available, let me know. Would be interested in a few boards, plus any PAs or whole built TX. Cheers

Not 4W like the NRG Pro3, but Zozo, a member of this forum, is selling some decent ready built drivers on here & they're compact unlike the old NRG boards.

Check the "buy & sell" subforum on here.

[yellowbeard]

Gareth is selling the PLL pro 6 for around £120 assembled:
https://nrgkits.co.nz/index.php/product ... tter-kits/

[shorty]

I have a copy of the nrg pro4 instructions in pdf, i've tried posting them here for you, but it won't let me i get an an invalid instruction message.

[shorty]

Bazz, i've pm'd you with a pdf attached of the nrg pro4 instructions

[MiXiN]

Bazz, i've pm'd you with a pdf attached of the nrg pro4 instructions

Shorty,

I was cleaning up my phone memory earlier & came across loads of old files from Katruud, NRG, & all sorts. Amongst them, I found the Pro4 instructions.

Are yours the same as this - https://docdro.id/udLpqdM

[shorty]

Mixin, yes they are the same pro4 instructions.

[radium98]

it is easy to assemble from the version 3 , not complicated with some experience , all the same principle.Also without any document .That sad to see again you have to tune manually the vco , where the pll part is luxury with rotary encoder , but the vco is manual and if the variable capacitor fail , it will sprog harmonics .

[radium98]

i saw a pcb layout or .lay for version that have bcd , anyone can drop it again

[Albert H]

it is easy to assemble from the version 3 , not complicated with some experience , all the same principle.Also without any document .That sad to see again you have to tune manually the vco , where the pll part is luxury with rotary encoder , but the vco is manual and if the variable capacitor fail , it will sprog harmonics .

Nope. If the trimmer capacitor failed (very unlikely), the VCO just wouldn't lock, and there would be no output, because the Out-Of-Lock circuit wouldn't allow the signal through the drive stage. When Stephen Moss came up with that VCO, he made sure that even the most ham-fisted dingbat shouldn't be able to get it to misbehave!