update on lm3886 /pre-amp

[donald stringer]

http://www.dirk-hendrik.com/ibanez_tk999_us.pdf As I was pondering  as to how difficult or simple this pre-amp would be. I also scanned my small work space and viewing some boxes I had sitting on the shelf gathering dust. Various stomps and among them one of my favorites. Ibanez tube king tk 999 american version, the above address is the schematic. How about marrying the tube with the power amp. In its stock form it sounds ok. but was  thinking while I have it laid open maybe some mods can be done to update it.

• #1 increase volt supply from 9 to 18 volts[ I have 18 volts pre- supply available
• #2 alter C9 the47pf on the gain control

[/#3 Alter tone stack [I would like more control around the midslist] of course a possible tube change from ax to au. and with this version you can change out op-amps......thoughts comments suggestion welcomed  I have another chip that I am planning to design my own pre-amp but in the mean time this stuff gathering dust has got to be used, Its the perfect size board as I have room on the amp face plate to simply drill for the pots and of course any spdt needed for filter shelfs if needed.[/list]