Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers

Buy Site Supporter Role (remove some ads) | LPF Donations

Links below open in new window

FrozenGate by Avery

Sound card DAC tutorial

paulzimm said:
Ahh, what exactly did he change his signature to get himself banned from here?
Click to expand...

I think he changed it from "Hingednewt.com - The home of Spaghetti" to "laserpointerforums.com - The home of dorks" or something like that...

Plus I don't know what else he might have said to who... A lot of his posts are gone now..
 





He is seriously badmouthing lpf over at PL. Alot of people is agreeing with him ofc based on his spin on this whole deal. He also wrote that he will continue with spaghetti and make it a dongle based solution, oh and he immediately has lowered the price to 89usd. What a ****
 
LaserAdct said:
He is seriously badmouthing lpf over at PL. Alot of people is agreeing with him ofc based on his spin on this whole deal. He also wrote that he will continue with spaghetti and make it a dongle based solution, oh and he immediately has lowered the price to 89usd. What a ****
Click to expand...

Yup that he is... What a great guy :p

I don't really care to get involved with him over there... I said my piece I am done.

I heard that, he said that in the other thread...I like that dongle idea.. The PC locked license is a bad idea.. I don't know why more people don't use dongles.
 
^ cause, for an expert programmer, break a dongle protection is too easy.

Not me, i'm not a programmer ..... but i know that there was a guy that in the past defeated the more strong existent dongle protection of that time in less than a week, after the company that was using it paid like 50.000 $ in developement fees for the protection scheme :p

They had a program with multiple protection levels (once you break one, another intervent, this for 16 levels), and used a flexdrive dongle with self-recursive algorythms with 256 different encrypted keycodes, granted to be "absolutely impossible to crack, read, disassemble or decipher in any way" from the producer ..... that guy wrote a 9Mb program that simply changed the internal registers of the protection module, so each time it search for the right dongle keycode, it simply find the right answer inside itself, without any need to crack or decipher the dongle ..... and in the 9Mb of the crack there was also the self-presentation of the pirate, with animated logo and music, and a message for the protection developement team that was saying, more or less, "hey, i needed less than a week for defeat your protection, working only 8 hours a day, that was not funny, please do a better work the next time" :p :crackup:

(i suppose those guys at flex was really happy reading that, huh ? ..... :p :D)
 
HIMNL9 said:
^ cause, for an expert programmer, break a dongle protection is too easy.

Not me, i'm not a programmer ..... but i know that there was a guy that in the past defeated the more strong existent dongle protection of that time in less than a week, after the company that was using it paid like 50.000 $ in developement fees for the protection scheme :p

They had a program with multiple protection levels (once you break one, another intervent, this for 16 levels), and used a flexdrive dongle with self-recursive algorythms with 256 different encrypted keycodes, granted to be "absolutely impossible to crack, read, disassemble or decipher in any way" from the producer ..... that guy wrote a 9Mb program that simply changed the internal registers of the protection module, so each time it search for the right dongle keycode, it simply find the right answer inside itself, without any need to crack or decipher the dongle ..... and in the 9Mb of the crack there was also the self-presentation of the pirate, with animated logo and music, and a message for the protection developement team that was saying, more or less, "hey, i needed less than a week for defeat your protection, working only 8 hours a day, that was not funny, please do a better work the next time" :p :crackup:

(i suppose those guys at flex was really happy reading that, huh ? ..... :p :D)
Click to expand...


You can do the same thing with a license file... At least a dongle can move around for legit users.
 
Guyfromhe said:
You can do the same thing with a license file... At least a dongle can move around for legit users.
Click to expand...

Dongles are additional overhead for the small time programmer, its a significant cost. Each dongle you have to pay for and they aren't cheap. That cost would be brought right back to the users.
 
Guyfromhe said:
You can do the same thing with a license file... At least a dongle can move around for legit users.
Click to expand...

Yes, but there is a basical difference ..... a built-in protection written as part of the software, during the program creation, is more difficult to be defeated, especially from a compiled executable ..... a commercial dongle usually always use standard libraries and calls to external modules, especially if from a big company that produce them for sale, and all those libraries and protocols can be obtained (just think about a working demo), and can be studied and tracked from dedicated programs, so the cracker have a relatively easy life in finding calls and schemes and defeat them (just think about my previous example, that cracker, knowing the calls and protocols, simply turned the protection calls from "give a code to the dongle, get the reply, manage and compare for validity" to "ask to yourself the right reply and compare it with your own reply" :p :D) ..... if instead you have to defeat a custom protection inside a specifically written code, is more difficult, cause you have nothing to study, and simply don't know what to search .....

Also, as whatsupadrian said, the dongles and related libraries and use licenses don't come for free ;)
 
Last edited:
EF ---
Are pins 14 thru 25 on the DB-25 scanner plug connected to the -ground from the DrLava correction amp?
HMike
There is a lot of "noise" on LPF anymore.
 
Last edited:
That's 100% correct Mike. All negative/ground connections share one ground source on the correction amp, this is manifested by the fact that all the negative connections on the output header on the correction amp board are connected to the boards ground trace.

I hear ya about the SNR.. as LPF grows, so doth the noise.
 
Can anybody tell me where I can obtain a DrLava correction amp, or a layout for the board?

I think I have a newly broken computer which has a VIA 7.1 chip that I should be able to use...
 
Not sure if he's selling the board still, but you can always create the amp from scratch using a breadboard (I've done this and it works just fine). Then you can make it permanent by soldering it to some protoboard. The parts and basic schematic are in the previous posts of this thread.
 
FYI - I am selling my Dr. Lava DAC with upgraded voltage regulator (read: more powerful signal) and soundcard all professionally soldered together and ready to mount onto your projector board. A lot of work (I am a perfectionist) went into this Soundcard DAC and it is already tuned and works perfectly. The only reason I am selling it is because I upgraded to Pangolin QuickShow/Beyond and it is just sitting in my drawer. I am firm on the cost of $100 (includes shipping within USA) and if not sold, I may just use it in another project. Please PM me if interested, here are some photos...
 

Attachments

  • IMAG0525_2.jpg
    IMAG0525_2.jpg
    97.4 KB · Views: 488
  • IMAG0526.jpg
    IMAG0526.jpg
    82.9 KB · Views: 546
  • IMAG0527.jpg
    IMAG0527.jpg
    78.4 KB · Views: 376
  • IMAG0525.jpg
    IMAG0525.jpg
    101.7 KB · Views: 752
Thanks, paulzimm, that's what I was looking for!

I can't even imagine all the fun I'm going to have with this once it's up and running...

Oh, also, is there a PDF or anything that tells me exactly which components I should use? I guess I could get the $40 kit but I could get the parts separately from digikey.

On here I find this list:
(8) 10K ohm 1% resister
(8) 15K ohm 1% resister
(1) 120 ohm resister
(8) 100K ohm trim pot, 15 or more turns
(9) 500 ohm trim pot, 15 or more turns
(6) 10uF tantalum capacitor
(4) 8 pin dip sockets
(4) TLO72 dual op-amp
(1) DC/DC converter (GND, +5) to (+9, GND, -9)
(1) LM337 adjustable negative voltage regulator
(1) copper clad proto-board
and a bunch of pin headers and sockts

I wonder if that's compatible with DrLava's board?
 
Last edited:
If you look back in this thread, I made a list a while ago about all the parts you will need with links. When I tried to order the board from Dr. Lava with all the parts, he refunded my monday because he does not offer that anymore. You can try though...
 
You must log in or register to reply here.





Back
Top