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EHX - Holy Grail

Posted: 19 Nov 2007, 23:07
by platinum321
I was wondering if anyone had anything on this particular pedal?

Thanks for any info. :D

Posted: 19 Nov 2007, 23:26
by tuemmueh
Yes. It's DSP-based. Sorry ... Buy one and rebox it, that's the only thing you can dby (do by yourself) to mod this circuit without being in programming-stuff.

Posted: 20 Nov 2007, 01:03
by platinum321
Rrrrrrrrrrrats! :?

Thank you for the info. May as well delete this topic eh?

EHX - Holy Grail  [schematic]

Posted: 12 Sep 2008, 22:12
by echodeluxe
hey, i got a holy grail with a fried resistor and i need the schematic! can anyone help?

Re: EH Holy Grail Schematic?

Posted: 13 Sep 2008, 03:27
by echodeluxe
nevermnind.

Re: EH Holy Grail Schematic?

Posted: 17 Sep 2008, 13:12
by mensur
Here you go!!!.

Re: EH Holy Grail Schematic?

Posted: 17 Sep 2008, 13:46
by analogguru
mensur wrote:Here you go!!!.
Please donĀ“t post copyrighted schematics. They will be removed like in this case.
Feel free to send it your friends instead by e-mail on request.

analogguru

Re: EH - Holy Grail

Posted: 03 Oct 2008, 12:03
by BJF
Hi,

If that's the 47R resistor that sits just before the regulator you can replace that with an 1N4002 diode.
The supplies these come with leave a little too high voltage and these are better driven by a stabilized 9V at least 200mA supply.


Have fun
BJ

Re: EH - Holy Grail

Posted: 03 Oct 2008, 21:34
by Barcode
BJF wrote:Hi,

If that's the 47R resistor that sits just before the regulator you can replace that with an 1N4002 diode.
The supplies these come with leave a little too high voltage and these are better driven by a stabilized 9V at least 200mA supply.


Have fun
BJ
i find that in some units i have worked on or owned, that at least 500mA was required (which is the rating of the stock adapter) to keep the reverb clean.