Lionel CDV-700 Model 6b Geiger Counter

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Lionel Electronic Labs CDV-700 This is a fully functional low range (millirem per hour) gieger muller (GM) radiation survey instrument. As you can see from the picture it comes with a sidewall GM. The side wall GM has a sliding shield that twists to open and to close a 'window' that reveals the detector (a brass colored cylinder). As you can see from the picture, with the window 'open' the meter has a reading of approximately 1mR/hr on contact with the check source on the side of the scaler bottom. This operability reading was taken with the open window of the GM probe centered over the check source and in contact with the meter bottom. This survey meter requires two (2) D-cell batteries. The advantage of having a sidewall GM with a sliding shield is that you can determine whether or not you are in a plume (radioactive cloud) if there is a release of radioactive gasses: if the closed window reading and the open window reading is the same then you are not immersed in the plume. If the open window reading is higher than the closed window reading then you are in the plume. The increased reading is because beta radiation emitted by some of the radionuclides in the plume only travel a few feet and are attenuated by the probes sliding shield. Gamma radiation travels much further than beta radiation and is less attenuated by the probes sliding shield. Note: this meter is not designed to monitor alpha radiation and I doubt it's much good in a neutron field either. Both of those types of radiation require specialized equipment which is impractical for fallout shelter use. This instrument was designed and distributed by civil defense authorities for use during a nuclear accident or attack. This is a used instrument and is in very good shape. It may have some paint scrapes, rust spots, oxidized aluminum, or other marks from use. It comes with two pairs of headphones (not pictured) that attach to the meter (the connection is under the yellow plastic cap affixed to the handle with a bead-chain). Only one headphone can be used at a time, but this gives you a spare to play with.The nitty gritty details: Payment is expected by PayPal within five days after the date I invoice you after the auction closes. Typically I invoice within 3 days (excluding weekends) after the close of the auction. Please wait for the invoice and you will save on shipping costs if actual shipping costs are less than $15.00. E-mail me if you run into unexpected difficulties paying. Don't bid if you can't pay. Don't bid on multiple auctions unless you can pay for all of them in case you get lucky (or unlucky). I do follow up on non-paying bidders. Sorry, I cannot accept credit card payments except through Paypal, checks or cash. Domestic Shipping, Hawaii, Alaska, is via FedEx or UPS and is at the Buyers expense. Shipping charges will be determined at the end of the auction and will be based upon actual costs to ship to the Buyer's shipping address. I do not charge a packing charge. The Buyer will be provided with the tracking number upon shipping. International Shipping is via FedEx, UPS, or USPS and is at the Buyers expense. Shipping charges will be determined at the end of the auction and will be based upon actual costs to ship to the Buyer's shipping address. I do not charge a packing charge. The Buyer will be provided with the tracking number upon shipping. The Buyer is responsible for any VAT or import taxes in addition to actual shipping costs. These costs are considered part of the shipping charge if they are due upon offering the package for shipping. Note: there are some parts of the world where it is just too much of a hassle for me to ship to. E-mail me if you have any questions BEFORE bidding. Insurance is required and is part of the shipping cost if the winning bid exceeds the amount covered automatically by the shipping method chosen. Generally, FedEx and UPS shipments are automatically covered up to $100US, while for USPS insurance is an extra charge for any amount of coverage... read more

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