Hi, Here is one you might remember , it weighs in at about 8 lbs. I had commissioned Mr Crouse to build me a over sized replica of a 20mm shell Host . In it at the time was the NDB7A75 diodes over 5= W's at the time this was the big dog. Enjoy LPF..
Next to it is a 5.56/.223....for comparison.
Lifetime17, now that’s an unusual and truly scary laser!
Here are the two sizes trinh hong phuoc made for me @ 75 and 85 mm lengths, but that can be reduced by removing one section of the battery tube on the end. I wanted to be able to add more batteries in the case I want to run a higher voltage, otherwise it will use several series-parallel 2x2 18650 battery packs which maintain the same 8.4 VDC (fully charged) voltage and when adding more packs adds more mAH capacity instead of more voltage when using 32650 cells instead.
As you can see one host has a smaller diameter head, it has an ID of 120 mm, the larger one has an ID of 135 mm. I will use the smaller one for my projects first, only going to the larger one where the extra room inside is needed:
No problem, Rich. Was just trying to figure out what you had in it. I got the impression you have had this for a long time and, since you didn't specify, I didn't go to the higher power diodes that later became available to us.
I still like the 7A75 with a G2 and c-lens pair, it makes a nice beam and is ready to point and use for fun, also amazing as such plus a beam expander.
This is one of my nubm44 units with a 6X c-lens pair and 3XBE, lost of fun and a substantial heat sink for many minutes of run time, running 3 x 26650 cells.