ICL7660 sub for MAX1044 ?

[petemoore]

  I have no need for feeding batteries to the SCR, except for testing. I don't think it'd/they'd last 1 gig.
  DC Jack, battery, Input Power Supply Switching...all this 'schtuff' is needed if a SCR user intends to buy lots of batteries. I don't, and would recommend to anyone intending to actually use the SCR much, to use a supply that eliminates all things related to battery/Switched Jacks/2n3906?/etc.
  What I could really use is a simple schematic showing how to hardwire up a MAX1044 to supply the SCR with +9V/-9V supply, converted from a DC WW.
  Or an explanation...perhaps verify which diagram on the pdf data sheet link I should be looking at.

[Fret Wire]

http://www.generalguitargadgets.com/index.php?option=content&task=view&id=114&Itemid=160
This has both the GEO articles and the GGG layout.

[petemoore]

  I see a 2n3906 and some related items on the GGG board with the MAX1044 on it, the GEO article shows this as a 'better' way to use input jack power switching.
  And that earlier statements I read about MAX1044's inability to supply adequate current for the driver section is:
B  not an issue?
  [because It looks like the +Supply/pin8, and the -supply/pin5 connect directly to the SCR Circuit and the 2n3906 is doing something other than helping the MaxChip supply current].
  so:
  Can the MAX1044 chip supply power to the SCR as shown on the original GEO page's diagram "+9v* and* /-9V from one 9V battery"?
  I checked and found I have an NE5532 in what is the driver section, a current hog...
  The Supply Converter chip I'll be trying on a "MAX1044" circuit board for +9/-9v ing the SCR is a "TC1044SCPA", from what I understand, it's 'beefier'.

[TheBigMan]

Mine were Intersil ICL7660CPAZ to be precise.

There's your answer.  Only the ICL7660S chips have the frequency boost feature like the MAX1044.  Connecting pins 1 and 8 together on any other ICL7660 will make no difference at all.  The ones I'm using have the full part number ICL7660SCPA.

[simon111]

Just got some MAX1044's today. Plugged them in my booster.....

No squeal.

Perfect.