Light house flashing circuit

My neighbor brought over his garden light house and asked me to fix it. He then asked if I could make the light do a "real" light house flsh with dim to bright flash, then to dim and out, repeat. After researching a LOT, I found this circuit.

http://www.discovercircuits.com/PDF-...OUSEFLASH5.pdf

My problem is, I can't find a LMC6442 op amp. Low voltage, low power. Punching in the data at Mouser got no hits and no substitutions. Any ideas?

Also I'd like to power this circuit with a single AA nicad recharged by the solar cell. I saw a link here for a voltage increasing single AA battery holder with a 5v output. I lost that link. Does anyone have a link to something similar?

Thanks

http://www.jameco.com/webapp/wcs/sto...eeText=LMC6442

This link will sell you an op amp that you are looking for.
Don't know about the 1.5V to 5V or the solar, happy hunting for those.

Regards.

AA battery holder with step up to 5 volts:

http://www.sparkfun.com/commerce/pro...oducts_id=8248

Description from SparkFun:


5V DC to DC Step Up - 1xAA
sku: PRT-08248

Description: The is a wonderfully simple 5V power source from Bodhilabs. This unit uses a single AA battery and generates 5V using a DC to DC step up circuit. A jumper is provided on the unit to disconnect power and includes a terminated (right is red) connector. Perfect for all those 5V applications that need to be small, and run on less than 100mA.

Specifications:

•Voltage regulation: +5V +/-3%
•Typical current: 100mA or less.
•Typical ripple: 150mV peak-peak (*) @ 135kHz

THANKS! it took a long time to find that circuit. Tons of On/Off circuits, but this is the only dim to flash bright, them dimming circuit out there that I could find.

Great circuit... :)

About the only way I could think of to reduce your current draw would be to use an ultra low power microcontroller to drive a FET with PWM for dimming.

Steve