gemini86

Fabio's 2520 boards
« on: November 06, 2011, 02:57:42 AM »
I have a couple each of Fabio's 2520BC and 2520R1, is there a specific schemo for the R1 version (the upside-down component one) or are they both just the regular 2520 schemo that everyone has?

google is making it increasingly difficult to retrieve old threads from the prodigy/groupdiy domain change... They used to have the url listed below the link, but that is no more...  :'(
- Rodney

"...you better call Kenny Loggins, 'cause you're in the danger zone."


Davo

Re: Fabio's 2520 boards
« Reply #1 on: November 06, 2011, 03:11:36 PM »
It looks like the site where Fabio put all his files is no more.....
in any case, I've got a few schemos which I believe are Fabio's (R1, BCR1, R2.68...  it just looks like transistor choices are subbed throughout the different variants)
I'll post the first R1 here, if you want the others just PM me... I've got a layout and a bom as well

cheers

gemini86

Re: Fabio's 2520 boards
« Reply #2 on: November 06, 2011, 03:33:32 PM »
Thanks Davo!

I've got the schem for the 2520BC, but no BOM for either version, so if you could share those that would save me some time.

Thanks again!
- Rodney

"...you better call Kenny Loggins, 'cause you're in the danger zone."

Davo

Re: Fabio's 2520 boards
« Reply #3 on: November 06, 2011, 03:58:01 PM »
Hi Gemini,

Sure thing, here ya go... I'll post the layout as well

Cheers

Davo

Re: Fabio's 2520 boards
« Reply #4 on: November 06, 2011, 03:58:42 PM »
hmmm... well this is the bc layout anyway

gemini86

Re: Fabio's 2520 boards
« Reply #5 on: November 06, 2011, 04:26:49 PM »
ah yes... the original R1 was just a 9 transistor. I see in his notes on the schem where he added the current source, but other than that the BOM should be the same for the R1 and the R.268

Thanks again, Davo.
- Rodney

"...you better call Kenny Loggins, 'cause you're in the danger zone."


 

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