PRI 106 B. 'LUCKY STRIKE' Geiger Counter With A Good IB85 Internal Geiger Tube, US $95.00 – Picture 0

PRI 106 B. 'LUCKY STRIKE' Geiger Counter With A Good IB85 Internal Geiger Tube, US $95.00 – Picture 1

PRI 106 B. 'LUCKY STRIKE' Geiger Counter With A Good IB85 Internal Geiger Tube, US $95.00 – Picture 2

PRI 106 B. 'LUCKY STRIKE' Geiger Counter With A Good IB85 Internal Geiger Tube, US $95.00 – Picture 3

PRI 106 B. 'LUCKY STRIKE' Geiger Counter With A Good IB85 Internal Geiger Tube, US $95.00 – Picture 4

PRI 106 B. 'LUCKY STRIKE' Geiger Counter With A Good IB85 Internal Geiger Tube, US $95.00 – Picture 5

PRI 106 B. 'LUCKY STRIKE' Geiger Counter With A Good IB85 Internal Geiger Tube, US $95.00 – Picture 6

PRI 106 B. 'LUCKY STRIKE' Geiger Counter With A Good IB85 Internal Geiger Tube, US $95.00 – Picture 7

PRI 106 B. 'LUCKY STRIKE' Geiger Counter With A Good IB85 Internal Geiger Tube, US $95.00 – Picture 8

Pri 106 B. 'lucky Strike' Geiger Counter With A Good Ib85 Internal Geiger Tube

US $95.00

Eugene, Oregon, United States
Jan 30th

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PRECISION RADIATION INSTRUMENTS WAS THE MOST PROLIFIC MANUFACTURER OF RADIATION DETECTION EQUIPMENT DURING THE URANIUM RUSH OF THE EARLY TO MID 1950s. This model and it's companion, the 107 were the most popular of their product line. During the half decade these models were produced they went thru three major design changes designated the 106 and 107, then the 106 and 107 B and finally the 106 and 107 C. This is an example of the middle design. In all cases, the 106 models had an internal GM tube (the detector' ) and the 107 an external probe. They all used a thin wall, metal tube designated an IB85, a fragile tube prone to imploding due to air pressure changes sometimes as harmless seeming as slamming the trunk lid of a car. Even if the body survived, the tubes have a limited lifetime and few of the originals reman functional today. This unit is one of the few! It has an original, tested and functional IB85 tube as well as the original headphones and check source . The radium check source has cracked a bit over the years and has been stabilized by a covering of two layers of clear packing tape. Despite being over 60 years old the battery holders show no sign that they ever held batteries and the interior components (as well as the exterior) look like they just left the factory yesterday . There is a very little bit of surface rust on the inside of the case bottom as the only hint of age. It came to me in the handmade prospectors box that people heading out to the desert sometime made to keep the parts organized . Despite the appearance and the tested tube there is no guarantee that this will function because older components sometimes failed due to age only however, this is the best situation to be in to begin a restoration project . The high voltage 'B' batteries are available online as well as more info. A good place to start is the ORAU instrument museum. Please keep in mind that this Geiger tube is worth $45-55 alone so the price for this lot is reasonable. If you do not want the wooden case I can ship in a medium flat rate box but I think it is worth a bit more shipping for the sake of history.

Condition	For parts or not working : An item that does not function as intended and is not fully operational. This includes items that are defective in ways that render them difficult to use, items that require service or repair, or items missing essential components. See the seller’s listing for full details.
Seller Notes	“Since I do not know for sure if it is functional this category must be used”