Boosting Current capacity in "Ultra Clean" Power Supply

[bdevlin]

My circuit (see link below) yields about 50 mA of DC.  I need about 100 for a certain circuit.  My common sense tells me that decreasing R2 will yield more current capacity but it does not and it also drops the voltage too much.  Anyone have any thoughts?
http://www.generalguitargadgets.com/diagrams/ultra_clean_ps_sc.gif

By the way, the 100 mA is for a PT-80.  My ammeter showed it drawing ~90 mA.  It does have a charge pump attached to it as well.  Not sure how much the charge pump vs. the actual PT-80 draws.

[Cliff Schecht]

I'm confused here. The LM317 can provide up to 1.5A (the amount of current available lowers as you increase the voltage drop), so where is the problem?

[bdevlin]

Well I need 9 volts.  Right now I got it but the current available is only 50mA.  This PT-80, which works fine, draws 100mA.  I suspect much of that is the charge pump??

[slacker]

Where are you getting the idea that the circuit will only supply 50mA? Like Cliff said an LM317T set up like that will provide up to 1.5 amps.

[bdevlin]

Where are you getting the idea that the circuit will only supply 50mA? Like Cliff said an LM317T set up like that will provide up to 1.5 amps.

I hooked the PT-80 up to an ammeter with a battery as the power source and got 100mA.  I then hooked it up to my LM317 Power Supply and it was drawing only 50mA.  The assumption (my assumption) then of course is that the LM317 circuit, as it is now, is tapped out at 50mA.  I know the LM317 is capable of more supply, but the question is what tweaks to the circuit are needed to untap more current? 

[Sir H C]

What did the output voltage read?  If it read 9 volts, everything is good, if it read lower, then there is something really limiting the current, possibly the power transformer.

[bdevlin]

What did the output voltage read?  If it read 9 volts, everything is good, if it read lower, then there is something really limiting the current, possibly the power transformer.

It is 9 volts.  The transformer is Mouser 41PG006.  I just looked at its specs. and sure enough it is rated at .060 amps.  Bummer, there's my problem.  I sure would like to get that PT-80 current draw tamed though down to 50 mA.