Henri, don't assume the GG is DOA. A splinter group is going to try a different road, but the original is still a good item for sure. Lets hope for several offshoot from the GGV1 over time.

Geo

--- henribecq@... wrote:

From: "henribecq" <henribecq@...>
To: GeigerCounterEnthusiasts@yahoogroups.com
Subject: [GeigerCounterEnthusiasts] [GammaSpectrometry] Re: 2012 project
Date: Sat, 28 Jan 2012 01:32:23 -0000

Hi,

I´m really sad about hearing that GGv1 will be dropped and there will be no PCB´s available. It will be a good kit even when DSO Nano will not be available on the market any more - things change fast. GGv1 seems an unfinished project by now, our Guinea pigs tested for nothing?.

However, can the developers release the Eagle/Gerber files for the PCBs then so I can produce me an own one? I´m very hot getting this thing running, a Pickit3 I ordered arrived some days ago and a display is still on it´s way to me. Too late to change things completely for me...

Best,

Henri



--- In GeigerCounterEnthusiasts@yahoogroups.com, "lrpingel" <safelyiniowa@...> wrote:
>
> Discussion over on Gamma Spectrometry has changed things a bit with Gamma Grapher. The DSO Nano oscilliscope looks to be a better hardware platform for a MCA then GG V1. At least that's my opinion and I believe shared by others. Personally I've decided to start drop GGV1 work and develop software to convert the Nano into a MCA. GGV1 will still be up on source forge for anyone to build their own, software binary files included. I might be wrong but I doubt new pcb's will be made for GGV1.
>
> The contribution of GGV1 designers and testers can not be underestimated. They proved a low cost amateur design could match expensive commercial products. And it proved that hardware such as small BGO crystal and miniature PMT's are up to the job.
>
> The Nano is an open source design, hardware and software. It is made commercially and sold by many. The schematics show it so simple anyone could build one. It consists of a powerful STM32 MCU, a color LCD, analog switch chip for input scaling, power supply, and a few buttons. The STM32 has a 12 bit ADC capable of 1 million samples per second, possibly even twice that. It is fast enough that a peak hold circuit is not needed, a 5 us pulse is enough for shape recognition in software. If production stopped tomorrow we could quickly produce it ourselves. They are from $50-$90 USD complete. You can't get the parts for GGV1 for that. All that is needed is software, probe, HV supply, signal separator from HV, and pulse stretcher. It's much simpler than it sounds. That hardware has already been developed for GGV1 and other projects. It should fit into a box the similar in size to Nano. You could attach it to back of Nano with velcro. Most of the software is already available as open source or parts of open source software. Tune in to Gamma Spectrometry for more news.
>
> These opinions are only mine and do not reflect the opinions or plans of other Gamma Grapher developers.
>
> Lee
>
> --- In GeigerCounterEnthusiasts@yahoogroups.com, "Happynewgeiger" <torre.wtc@> wrote:
> >
> > GAMMA GRAPHER MCA IS ALIVE!!
> > OINK OINK FROM ITALIAN GUINEA PIG
> >
> > ----- Original Message -----
> > From: Happynewgeiger
> > To: GammaSpectrometry@yahoogroups.com
> > Sent: Saturday, January 21, 2012 6:03 PM
> > Subject: Re: [GammaSpectrometry] Re: 2012 project
> >
> >
> >
> >
> > Today I started to populate the MCA pcb. The Pcb is very nice and professionally built and projected. Very useful during the assembly the BOM list with all the detail and warning. My test is interesting as I'm using material not new and taken from my scrap basket.... So not all values are precise. LEt see
> >
>




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