Author Topic: Brick'R'Knowledge electronic education & R&D  (Read 12005 times)

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Offline rdklein

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Re: Brick'R'Knowledge electronic education & R&D
« Reply #25 on: November 28, 2014, 06:52:36 am »
Thanks, yes looks like my team had corrected it already.
 

Offline rdklein

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Re: Brick'R'Knowledge electronic education & R&D
« Reply #26 on: November 28, 2014, 05:02:21 pm »
The new connectors and printed circuit boards arrived. With the P-SMP from Rosenberger we can reach higher frequencies with our brick system. The P-SMP connectors were designed for up to 10 GHz and 300 Watts. They are connected via small bullets, so we can have a similar feeling like with the hermaphrodite system. First bricks use FR4 boards which might llimit the upper frequency to 2.x GHz. With Roger 4350 Material we can get higher for special applications (I think for the 10GHz band used also for HAM radio). Next comes a RF RMS power detector with a theoretical limit to  6GHz - to be measured...Have to check for all S Parameters etc.
Also an adapter to SMA is shown.
« Last Edit: November 28, 2014, 05:04:02 pm by rdklein »
 

Offline Sigmoid

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Re: Brick'R'Knowledge electronic education & R&D
« Reply #27 on: November 28, 2014, 05:17:26 pm »
Hm... I wish they were better at coming up with a name for their product. ;)
 

Offline rdklein

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Re: Brick'R'Knowledge electronic education & R&D
« Reply #28 on: November 28, 2014, 06:05:17 pm »
Indeed we think about this.
 

Offline rdklein

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Re: Brick'R'Knowledge electronic education & R&D
« Reply #29 on: November 29, 2014, 01:14:51 pm »
We just finished a new brick, the RMS measurement brick for 10MHz-6GHz (LT5581), using the FR4 material shows in the below measurement series, that we can reach a linearity till about 2.7 GHz. Then loss is increasing. But till 10 GHz, a signal goes through.
 

Offline rdklein

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Re: Brick'R'Knowledge electronic education & R&D
« Reply #30 on: November 29, 2014, 01:16:44 pm »
As the attachments overflowed, here a low frequency example.


AM Modulations can be measured till around 100 kHz.

Eine Anzeige von 0.2V entspricht ca <= -34..-40dBm  im nichtlinearen Bereich des Sensors.

Bereich -34 dBm bis 6dBm mit 31 mV/db (noch nicht genau calibriert bei uns),  also ca. 0 dBm bei 1.32V unter Berücksichtung laut Datenblatt LT5581 ablesbar (frequenztoleranz...).
« Last Edit: November 29, 2014, 01:29:20 pm by rdklein »
 

Offline rdklein

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Re: Brick'R'Knowledge electronic education & R&D
« Reply #31 on: December 05, 2014, 06:38:54 am »
 

Offline rdklein

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Re: Brick'R'Knowledge electronic education & R&D
« Reply #32 on: December 08, 2014, 08:52:30 am »
Now the result of the yesterday event: we received the "Master of Excellence" for the innovative tool- system- and hardwaresolution "Brick'R'Knowledge". This is the highest possible award from this jury.
 

Offline coppice

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Re: Brick'R'Knowledge electronic education & R&D
« Reply #33 on: December 08, 2014, 09:57:21 am »
It's been driving me crazy.  Denshi Blocks!  http://searle.hostei.com/grant/ElectronicKits/index.html has pictures of a few versions.  The SR-1A has the clearest picture of the blocks.  I had something like the SR-3A deluxe.  That brings back some memories.
There are so many kits on that page, yet the only ones I remember clearly are the Philips ones with the springs. They were promoted quite a bit around Christmas time. Those springs were really frustrating. They held one or two wires well. Add a third or forth and and a previous wire would spring out.
 

Offline rdklein

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Re: Brick'R'Knowledge electronic education & R&D
« Reply #34 on: December 16, 2014, 08:52:25 am »
Yes I had a phillips system in my child days, also kosmos, braun and many more... my father had a company producing teaching systems for schools (also for military)...

we just got the Award "Best Lerningsystem" see attachment. Our bricks now extend into the GHz range, below an image with our demstration of a 10 GHz VCO and divider for the little oscilloscope to view the waveform. On the right side is the spectrum analyzer.
« Last Edit: December 16, 2014, 08:57:30 am by rdklein »
 

Offline rdklein

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Re: Brick'R'Knowledge electronic education & R&D
« Reply #35 on: December 20, 2014, 09:20:26 am »
Today is the lst day for the campaign, which will fail if we dont get a last minute sponsor. But nevertheless we continue the system and already have good response in germany. Hope we can make it also a fully open system.
 


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