Ludlum model 3, 44-3 calibration+ Ecotest Terra-p testing Radium gauge and tube.

[MultiEnigma31]

Please see email on the Ludlum gamma - beta detector model 44-21 (below): doriansto@aol.com

[MultiEnigma31]

Very interesting. Please could someone tell me the correct way to set the small potentionmeter which is located inside the gamma probe accessed from near the socket. The pot is R1 and is located GAIN ADJUSTMENT BOARD. Your assistance would be most welcom indeed. Please contact me by email: doriansto@aol.com

Thank you so much.

[antiprotons]

Interesting. Remember, you cannot use micro seiverts unless you are calibrated for the exact energy of the source, for the Geiger counter. A scintillator can measure energy and dectect events, but the Geiger counter can only detect events. I just posted a video explain this in detail.

Cheers

[mythhealer]

Once the unit is calibrated... you need to know how to get accurate readings...

You can find my videos here... ... /watch?v=j-2kmw1RfoA

OR

You can also search for: Fukushima Fallout and go to the mythhealer video

OR

watch the two videos on the: mythhealer channel. searching for the mythhealer channel directly...

OR

You can E-mail me at: mythhealer@comcast.net

[RockSteadyRus]

Welcome to Ludlum club

Enjoy =)))))

[ALARAiswise]

@RockSteadyRus Thanks Rus.

It's a very sturdy piece of equipment. I completely stripped it and cleaned it. Other than a nearly frayed wire connection it was fine. I re-soldered the wire and cleaned the switch. Very old school, robust, mostly passive electronics. I think it's a 1980's model 3 as the newer ones have 4 screws holding the meter in place and the very old ones have different calibration pots. The NaI(Ti) crystal is yellowed in some areas but apparently this has little effect in use