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Home-Made Random Number Generator [message #115] Fri, 09 November 2012 16:38 Go to next message
RWilliamson3 is currently offline  RWilliamson3
Messages: 4
Registered: January 2012
Member
I have found a project with a hardware random number generator

http://www.jtxp.org/tech/xr232usb_circuit.png

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Re: Home-Made Random Number Generator [message #116 is a reply to message #115] Mon, 12 November 2012 10:56 Go to previous messageGo to next message
FreddoW is currently offline  FreddoW
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Registered: January 2012
Location: Barcrest Group
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I looks like an op-amp generator.

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Re: Home-Made Random Number Generator [message #117 is a reply to message #115] Tue, 13 November 2012 08:55 Go to previous messageGo to next message
TRNG98 is currently offline  TRNG98
Messages: 21
Registered: January 2011
Location: Lund
Senior Member
We manufacture professional true random number generators, and some use a similar configuration with operational amplifiers. We always build these generators using a sheild against external (intentional) noise, to prevent the generator to be controlled by external means.
An example would be the TRNG9815.

TRNG98 We sell hardware random number generators

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Re: Home-Made Random Number Generator [message #118 is a reply to message #117] Wed, 14 November 2012 00:04 Go to previous messageGo to next message
EllaDerward is currently offline  EllaDerward
Messages: 2
Registered: January 2012
Member
Isn't it an unstable oscillator? There is no feedback on the last op-amp, that work like a comparator?

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Re: Home-Made Random Number Generator [message #120 is a reply to message #118] Sun, 18 November 2012 14:37 Go to previous message
RWilliamson3 is currently offline  RWilliamson3
Messages: 4
Registered: January 2012
Member
There is BIG difference between just "random" and a professional generator. The stakes are also a bit different. Game servers run in some kind of vault in Malta, so you can not just knock your screwdriver against it if there is a glitch. Very Happy Very Happy

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