Seven Cell Magnum Star lamps

[Pellidon]

I got my hands on some 7 cell Mag-num-Star krypton lamps for a dollar each. I am presently running one in a 2C Mag modded to run three CR123s. I am running it with three LI-Ion 16340's I get about 0.81 amps draw with a fresh set of batteries. It is not driving it that hard. How much abuse can I heap on this lamp?

I drove it in a PT40 with three 14500 cells and a dummy but it is horrible in that reflector setup. The tiny lens in the end of the lamp casts the beam on the wall in a long string :green: A seven cell PR20 lamp does not look that much better over a standard PT40 and four alkalines.

I guess the next logical step is to sacrifice one to four 18650's

 

[kavvika]

Interesting. I'm running a 5-cell stock Mag krypton bulb in my dads 2C w/ 3x CR123A's. I've put 4 hours on the bulb already and turned it on and off hundreds of times. I'd say a 7 cell xenon bulb is pretty underdriven and could stand one more CR123A at most. Or try running it on 3x 3.7V rechargable lithiums.

 

[Pellidon]

The 16340's are 3.7 volts. I was using the light similar to your setup with primaries.

 

[carbine15]

I'd love a 7 cell bulb.. I keep blowin 6 cell bulbs with my 8aa eneloops. Got an extra? It's my B-day!!!

 

[Pellidon]

Happy B day. :drunk: I don't have any extras but if you know someone in Norwich New York, there is a dollar store that should have about 15-20 on the shelf for a buck each. I won't get back there for about six months.

The Mag-Num Star has a lens in the tip of the lamp that makes it kind of crappy for small reflectors like a PT 40. It needs something large like a Mag size or better.

The PR20 lamp, 8.63 volt .5 amp, 4.3 watts nominal is what I first used, It is not terribly bright even driven at 12 ish volts but it doesn't flash out. It is better than a 2C lamp on normal batteries.

 

[big beam]

Which dollar store in Norwich? (there are 3).I'll be down there on the 23rd and will pick them up if anybody wants them.I don't use them but would be glad to get them and send them out at cost+ shipping.
DON

 

[rcnuk]

I'd be in for few or more. Let me know if it works out.
Thanks for the offer!

Which dollar store in Norwich? (there are 3).I'll be down there on the 23rd and will pick them up if anybody wants them.I don't use them but would be glad to get them and send them out at cost+ shipping.
DON

 

[big beam]

I'll pick up all they have and we'll over them later.

carbine 15 and rcnuk get dibs

DON

 

[Icebreak]

Is the lens frosty looking?

This lamp sounds similar to a Carley Xenon Star CA 717.

 

[Archangel]

Put me on the list for some, please.

 

[Pellidon]

Lens is clear, Big Beam has the location of the store.

 

[big beam]

I have about 20 of these lamps.I'm keeping a few for myself they work very well in an old tekna 8 cell light I have.
ON THE PKG IT SAYS
MAG-NUM STAR
KRYPTON LAMP
FOR ALKALINE BATTERIES
7 CELL
on the back
MSA-7 7 cell 9.0 volt .70 amps 6.3 watts BCP 14.812
date 1986
Lamps will be $1.10 each
S&H will be $2.50 for any amount(con us)regular mail
PP [email protected]
PLEASE PM ME WITH YOUR ORDER AND SHIPPING ADDRESS
WILL SHIP SAT MORNING
DON

 

[rcnuk]

Hi,

For 5 bulbs.

Thanks

 

[big beam]

I still have a few more of these left.

MIKE & ROSS yours were shipped

DON

 

[Pellidon]

I just saw some of these brand new in a Batteries Plus in Terre Haute, Indiana. New package style and everything. Odd they had brand new ones for a very limited production rare light.

 

[big beam]

Hi PELIDON,
Yeah that is odd
BTW thanks for the heads up in Norwich.I don't know what you do for a living but you must put a lot of miles on a car!!!:naughty:

DON

 

[Pellidon]

The company I work for makes equipment for the pharmaceutical industry. No samples Actually we will make anything for a buck. We have modded weenie wagons (hot dog vendor carts) to making sculptures for state parks.

Sometimes I wish I was driving to some of these places. Longer to get there but less hassle.

 

[rcnuk]

DON,
I received my Bulbs.

:thumbsup:

Thanks!

 

[big beam]

Hi carbine 15
Yours will be shipped Sat. am.
Thanks DON

I shipped them out this morning(Fri. am)
DON

 

[griff]

I'll try anything once almost