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Hello! It's been a very long time since I last signed in.

I've had this on going problem and I could never seem to figure out whats going on.

Problem: Laser pointer will produce 100mw's for a moment and then it dims down and then a high pitched frequency can be heard. It's not the diode dying out or anything because I build two 3405's and same thing happened to both of them. Sometimes after powering on and off it goes back to normal for a moment.

Awhile back my dad told me that the tail caps were the problem but I don't know what to do with him not being around anymore.

Specs.
phr-803t diode in an Axiziz housing.
FlexDrive v5 tuned to 110mA
MDXL 3405 + heatsink
Standard Axiziz lense.
x3 AAA batteries Rayovac


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