Home  UV Torches & Marbles  Bits & Bobs  Nuclear Novelties  Science  Signs & Labels  Nibbles  Sources

 

EXCLUSIVE

GeigerActive pro with meter

£69.99 inc. UK p&p

More information

EXCLUSIVE

GeigerActiv K keyfob detector

£54.99 inc. UK p&p

More information

Emergency

Geiger Counter

£59.99

UV Torches from

£3.50

Atomic Robot

£11.99

Atomic Spark Plugs

From £21.99

Atomic Clock

£6.99

GeigerActiv Personal &

Personal Plus pocket monitors

From £49.00 inc. UK p&p

More information

Radex RD1503

NEW LOW PRICE!

£134.99 inc. UK p&p

More information

NEWLY ARRIVED!

GeigerActiv pro SE

World's first solar powered

Geiger counter

£89.99 inc UK p&p

More information

DRSB-01 pocket detector

£49.99, inc. UK p&p

More information

CDV-700 6B ,1960s classic,

As new condition!

£89.99 inc. UK p&p

More information

CDV-700 Dual Probe Outfit,

Alpha, Beta Gamma detector

£179.99, inc UK p&p

More information

Grade II CDV-700 6 A & B 

£62.50, inc UK p&p

NEW LOW PRICE!

More information

CD-715 Survey Meter,

SOLD OUT

£45.00,inc. UK p&p

More information

NEW CDV-700 Speaker

 £10.00 inc. UK p&p

More information

CDV-700 Headphone Adaptors

£7.99 inc. UK p&p

More Information

CDV-742 Personal Dosimeter and charger

£25.00, inc. UK p&p

More information

Original 1960s CDV-700 manuals

ENI, Lionel, Victoreen

From £1.50 inc. UK p&p

More information

GeigerActiv pro, personal radiation monitor, £69.99. inc. UK p&p

We are proud to present GeigerActiv pro, our newest personal radioactivity monitor. It’s a compact, smart-looking hand-held instrument that can alert you to normal and elevated levels of beta and gamma radiation (minimum sensitivity ≥0.35 Mev). It’s fully self-contained and powered by one or two AAA cells, which keep it running for several days, or weeks, depending on battery type and pattern of use.

 

The presence of ionising radiation is indicated by a flashing red LED, an audible click from the built in piezo sounder and a clear visual indication on the front mounted moving coil meter (with selectable ‘hi/lo’ range). A second green LED remains continuously lit when the unit is switched on, to show that it is functioning.

 

It is a true Geiger Counter and by connecting it to a Windows PC (see note below) the free software, downloadable from our website, shows actual counts per minute (CPM) and total count. Furthermore this can be calibrated to display milliRontgens/hr (mR/hr). The results are also presented on a customisable real-time graph. Additionally the data can be stored to produce a detailed log, providing unlimited integration times, so you can measure very low levels of activity. The program also includes a web server, so results can be monitored remotely via a standard web browser. A PC connecting cable is supplied with the unit.

 

Designed and built in the UK, GeigerActiv Pro measures just 60 x 30 x 105 mm (2.3 x 1.2 x 4.1 inches) and weighs under 90g (3.1 ounces) so it is just a little larger and not much heavier than a pack of cigarettes and slips easily into a coat or jacket pocket. There are only two controls, the on/off power switch and hi/lo meter range selector button so it is extremely easy to use and ideal for some discrete urban prospecting - granite kerbstones can be surprisingly ‘lively’ - checking antiques (old watches, clocks and instruments with radium dials, uranium doped ceramics and glass etc.), and keeping a check on your environment.

 

Please note that GeigerActiv pro is not a calibrated scientific instrument and is not designed for use in safety-critical applications. 

 To hear it in action click   

 

 

Order online or click Here to order by post. We also ship worldwide. click for prices and information.

The software we program presently only runs on PCs with Windows 95, 98, ME, SE, NT4, 2k and XP; a soundcard and Internet Explorer v6 or later is also required; sorry no MAC or Linux versions yet, but wedo now have a workaround for Vista and Windows 7 PC users.


NEW! GeigerActiv pro SE (Solar Edition), £89.99 inc UK p&p

It’s the World’s First Nuclear Powered Geiger Counter. That’s right, this specially developed variant of the GeigerActiv pro (above) derives its power from the biggest nuclear reactor of them all, our Sun. Fitted to the rear of the case is a 30 x 35mm silicon solar panel that charges a NiMh (nickel metal hydride) AAA cell inside the case. Two are supplied with the unit, so it’s always ready for use. The solar cell will even power the GeigerActiv pro SE directly on a really sunny day. If it’s cloudy or you want to do a spot of night-time detecting you can pop in an ordinary non-rechargeable AAA cell. Either way you can expect it to run continuously for between 100 and 200 hours on a fresh battery (depending on the type/state of charge). The outfit also comes with a USB charger, so the cells can be recharged from your PC or a suitable mains adaptor (not supplied). General specification and features are similar to the standard GeigerActiv pro -- see above -- the only significant difference being that it has a red power-on indicator LED.

 

GeigerActiv pro SE is a limited edition and specially built, so get your order in now to avoid disappointment. Please note that delivery to UK addresses may take up to 7 days; overseas orders will also take proportionately longer.

 

.Order online or click Here to order by post. We also ship worldwide. click for prices and information.

 

 

 

Please note that GeigerActiv pro SE is not a calibrated scientific instrument and is not designed for use in safety-critical applications

 


GeigerActiv K Personal key fob radiation monitor, £54.99 inc. UK p&p

GeigerAcitiv K is one of the smallest – if not the smallest – Geiger Tube radiation monitors currently available. As you can see it is no larger than a car alarm key fob and fits happily onto your keying, or you can wear it around your neck using the supplied yellow lanyard.

 

GeigerActiv K is capable of providing continuous around the clock monitoring, and the supplied 1.5-volt battery keeps it running for more than 200 hours; it will last for many months if used intermittently. GeigerActiv K responds to both normal background and elevated levels of Beta and Gamma radiation (sensitivity ≥0.35 Mev) indicating the presence of activity by flashing a red LED and emitting a characteristic discreet ‘tick’ from the built in piezo sounder; the green LED remains continuously lit to show that it is operating. Depending on you location normal background radiation will make it tick between 2 and 20 times a minute.

 

It is very small and unobtrusive and ideal for keeping a constant check on your environment; it’s also very handy for checking potentially radioactive items, such as uranium-doped antique glass and porcelain, old clocks, watches and scientific instruments with luminous radium-painted hands and dials, suspect scrap metal objects and so on.

 

GeigerActiv K measures just 60 x 35 x 15mm and weighs (ex battery) only 25g; it is supplied with a neck lanyard with detachable clip, one LR1 1.5 volt battery and instruction manual.

 

Please note that GeigerActiv K is not a calibrated scientific instrument and is not designed for use in safety-critical applications. 

 

 

Order online or click Here to order by post. We also ship worldwide. click for prices and information.


GeigerActiv PERSONAL and PERSONAL PLUS, Pocket Radiation Monitors and Geiger Counters, £49.00 and £55.00 inc UK p&p

GeigerActiv Personal and Personal Plus are two new, innovative, low-cost, dual-mode radiation monitors and Geiger Counters, designed and built in the UK exclusively for anythingradioactive.com.

 

Geiger Active Personal and Personal Plus (Move your mouse over the picture for a close up) work in two ways, firstly as a portable, self-contained personal radiation monitor and when connected to a PC they become fully functional Geiger Counters. They slip unobtrusively into your pocket so you can keep a continuous check on your environment.

 

GeigerActive Personal and Personal Plus react to normal background levels of ionising radiation (beta and gamma, minimum sensitivity ≥0.35 Mev) by flashing a red LED indicator and generating a distinctive click from the built-in piezo sounder on the rear. Depending where you are this can be between 2 and 20 times a minute. If the background level of radioactivity increases, or you bring the unit closer to a source of radioactivity the clicking and flashing gets faster. This makes them ideal for checking mineral samples and antiques, such as items made from uranium-doped Vaseline glass, clocks, watches, compasses and instruments with Radium painted dials, old gas mantles and so on.

 

GeigerActiv Personal is powered by two standard AA batteries (alkaline cells are recommended) and these can be expected to last for between 12 and 24 hours with continuous use, very much longer with intermittent operation. The Personal Plus model runs from a single AA battery and this lasts between 50 and 100 hours, depending on the ambient temperature etc., so it is better suited to longer-term monitoring. Additionally, Personal Plus has a power on LED that remains on continuously, to let you know that it is operating.

 

Using free FREE software that you can download from our web site GeigerActiv Personal and Personal Plus become fully fledged Geiger Counters, displaying the results on your PC or laptop screen. The counting and data logging program shows actual counts per minute (CPM), total count, and this can be calibrated to display milliRontgens/hr (mR/hr). The results are also presented on a customisable real-time graph. Additionally the data can be stored to produce a detailed log, providing unlimited integration times, so you can measure very low levels of activity. The program also includes a web server, so results can be monitored remotely via a standard web browser.

 

Both models measure 138 x 40 x 26 mm and weigh approximately 90g (ex batteries) and come with a PC connecting lead and instruction booklet with information about the software download.

GeigerActiv PERSONAL

Colours

GeigerActiv PERSONAL PLUS

Colours

 To hear it in action click   

 

 

Please note that GeigerActiv Personal is not a serious scientific instrument nor is it meant to be used in safety-crtitical applications.

 

Order online or click Here to order by post. We also ship worldwide. click for prices and information.

 

The software we program presently only runs on PCs with Windows 95, 98, ME, SE, NT4, 2k and XP; a soundcard and Internet Explorer v6 or later is also required; sorry no MAC or Linux versions yet, but wedo now have a workaround for Vista and Windows 7 PC users


Limited Edition -- Emergency Geiger Counter (EM01) £59.99 inc.UK p&p

Here at anythingradioactive we are the first to admit that a Geiger Counter is not your everyday sort of gadget. Nevertheless, there may well come a time when you’ll be really glad that you have one and what better way to make sure yours is always on hand than to hang it on the wall?

 

That’s right, this exclusive special edition white GeigerActiv Personal is fully functional and has been encased within a stylish wooden box, where it will be instantly ready to alert you to abnormal levels of radioactivity, or just reassure you that everything is still okay. When not in use it makes a fascinating and decorative conversation piece to impress friends and neighbours that you are ready for just about anything!

 

The glass panel on the front bears the legend ‘In Case of Nuclear War Break Glass’ but that’s for emergencies only; you can easily take it out by removing the five screws on the back of the case. Inside the case there’s some handy hints and tips on how to disarm nuclear weapons, using basic tools and kitchen utensils.

 

 

Order online or click Here to order by post. We also ship worldwide, please click for prices and information.


Radex RD1503 Geiger Counter Outfit, £134.99 inc. UK p&p

This is the most sophisticated personal geiger counter/radiation monitor in our current range. It is extremely sensitive, easily registering natural background radiation, and highly accurate, with the 42mm backlit LCD panel giving constantly updated and averaged readings (in 10 second cycles) of exposure to a wide range of Beta and Gamma radiation. It is calibrated  in micro Sieverts or micro Rem per hour, switchable using the on-screen menu. This also controls the variable volume bleeper and setup options, plus a level control which lets you program the bleeper threshold to 0.3, 0.6 or 1.2 uSv/hr (30, 60 or 120 uRem/Hr).

 

The RD 1503 is sturdy, very well built, and remarkably easy to use, with just three buttons, for switching the unit on and off, switching the backlight on and navigating the on-screen menus. It’s compact too, measuring just 100 x 60 x 24mm – around the size of a pack of 20 cigarettes -- and it weighs just 90 grams, so it slips easily into shirt or trouser pockets. It is powered by one or two AAA cells, which can run the unit continuously for up to 550 hours (over 3 weeks!).

 

For the technically minded the range of measurement is from 0.05 to 9.99uSv/Hr (5 – 999 uRem/hr) and the gamma range is 0.1 to 1.25MeV.

 

 

 

For a limited period we will also include a carry case. The carry case design may vary from that shown

 

Order online or click Here to order by post. We also ship worldwide. click for prices and information.

To hear it in action click   

SAVE! SAVE! SAVE!

Now you can own a Radex 1503 for only £125.00, inc UK p&p.  We have managed to secure a very limited number of the original Russian version of the Radex 1503.  These are operationally identical to the English version (see above) but the on-screen menu is in Russian, hence the lower price. However, this does not affect their working in any way and the digital readout and warning alert all function as normal.  In case you can’t read Russian, a copy of the English instruction manual is supplied in PDF form on a CD-Rom included free with the outfit. It also comes with a full set of Russian manuals and conformity certificate.

 


CDV-700 6B Civil Defence Geiger Counter, £89.99 inc. UK p&p

A+ Condition, now with original headphone & maintenance manual

This is a genuine piece of Cold War memorabilia, highly collectible and it works, too! The CDV-700 6B was made by  ENI (Electro Neutronics Inc.) of Oakland, California for the United States  Civil Defence corps throughout the 1960s. and 70s. These sturdily built instruments have recently been removed from storage and are in excellent condition. No expense was spared in their design and construction – they were built to survive a nuclear war, after all  – but they are very sensitive and will detect natural background radiation, as well as higher levels, up to and including lethal doses…

 

The device has a chrome-plated brass probe with a rotating ‘shield’ for discriminating between beta and gamma sources. It’s detachable and fits into the carry handle when not in use. The CDV700 has four ranges, covering 0 – 0.5, 0 – 5 and 0 – 50 mR/h (millirontgens per hour), with readings shown on the large meter. (They have not been calibrated for some time so we’re making no claims as to their accuracy)

 

An original purpose-designed headphone will be included with the unit, to let you hear the characteristic ‘clicks’ when the probe is exposed to a radioactive source.

 

The case is water resistant and made from tough cast alloy; the lower cover is held in place by two toggle clips. It weighs approximately 1.5kg (ex batteries) and measures 120 x 210 x 170mm. It is powered by four  standard  ‘D’ type torch batteries, which last for approximately 100 hours in normal use.

 

These instruments have never been issued for use – they are ‘NOS’ or new  old stock – and have been in storage for a long time but they are in outstanding condition and look like new . Each one comes  in its original storage box  and will be supplied with a headphone, carry strap and its  operating and maintenance manual. See below for details of our cheaper Grade II models.

 

To hear it in action click   

 

 

 

Stocks are strictly limited: when they're gone, they're gone!

Order online or click Here to order by post.

 Extra CDV 700 manuals for sale HERE

This item is sent via Royal Mail Standard Parcel Service to the UK, which takes between 3-5 days. A 2-day courier service  costs an extra £10.      


PLEASE NOTE these vintage instruments are not suitable for safety critical radioactivity measurement and do not default to a 'high' fail-safe reading in the event of a fault.

 

New Dual Probe model now available

CDV 700 spares & parts

CDV 700 Wall Clock, just £6.99 inc. UK p&p


Grade II Victoreen CDV-700 6 A & B Geiger Counter, £62.50 inc. UK p&p 

We have acquired a very small quantity of Victoreen CDV-700 6A and 6B Civil Defence Geiger counters. These look the same and have an almost identical specification to the ENI models (above) but they are unboxed and the cases are scuffed (with some paint chipping) and show signs of wear. Otherwise they are in good working order, though they haven't been calibrated for some time, so we cannot guarantee their accuracy. These units come with a copy of the original instruction and maintenance manual and original  headphone.

(Optional Speaker Module now available)

 

All units now come with original headphone; however, if you would like to use it with modern ear or headphones we can supply a custom-made 3.5mm stereo jack adaptor. If required we can also fit the unit with a 3.5mm stereo jack socket for an additi0onal £7.50.

Stocks are limited so hurry!

Order online or click Here to order by post.

To hear it in action click   

Please note this item is sent via Royal Mail Standard Parcel Service to the UK, which takes  between 3-5 days. We can also send it via a 2 day courier service for  an additional £10.

 

CDV 700 spares & parts   


CDV-700 Dual Probe Outfit, Alpha, Beta & Gamma £179.99 inc UK p&p

Our rugged and versatile CDV-700 Civil Defence Geiger Counter gets a major performance boost with the addition of a custom built Pancake Probe. This highly efficient probe is capable of detecting Alpha, Beta and Gamma radiation. The specially modified units are fitted with a connector allowing them to take both the standard Geiger Mueller (GM) ‘hotdog’ probe and the new 46mm mica-windowed model, housed inside a tough die-cast alloy case, with the distinctive ‘Civil Defense’ markings. Pass your mouse over the picture for a close-up

 

The new probe is between 10 and 20 times more sensitive than the standard GM detector and able to register very low-level sources. Try it on some ‘Low Salt’ salt substitute – yes, the stuff you put on your chips -- the Potassium Chloride it contains is surprising lively… You will be amazed at how much radioactivity there is out there, everything from granite kerbstones and counter tops, to smoke detectors and even the lint fluff from washer-dryers.

 

In addition to the Pancake Probe and modified CDV-700 (Grade I ENI model – (see above for more information) you will also receive a probe connecting cable, the standard 'Hot Dog' GM probe with modified cable, headphones and the instruction manual.

 

Stocks are very limited so hurry!

Order online or click Here to order by post.

 

To hear it in action click   

Please note this item is sent via Royal Mail Standard Parcel Service to the UK, which takes  between 3-5 days. We can also send it via a 2 day courier service for  an additional £10.  

 

The probe and cable is also available separately to experimenters able to fit their own connectors for £80.00, including UK p&p. (EU: £84.99, US: £89.99 - please email to order).

  

CDV 700 spares & parts


NEW CDV-700 Speaker (CDS002) £10.00 inc. UK p&p

This fully self-contained speaker module is designed to work with the CDV-700 series Civil Defence Geiger Counters and it produces a good 'tick' from the unit's twin piezo sounders (It's not going to burst your eardrums but it is loud enough to be heard by the user in a moderately noisy environment). Its retractable plug connects via an adaptor lead to a 3.5mm jack socket, which can be fitted upon request to all Grade 1 and II CDV-700s sold by us. Alternatively we can supply a special adaptor (see below). This allows the speaker to connect directly the standard CDV-700 headphone connector (you can also use it with your favourite headphones). The adaptor costs an extra £6.00 when purchased together with the speaker.

The speaker has been styled to blend in with the CDV 700 and bears the distinctive Civil Defense logo. It is powered directly by the CDV-700’s audio output so there is no need for any batteries. No fitting is required either as the module is held in place by a pair of magnetic strips. For models with alloy cases we supply an extra pair of self-adhesive magnetic strips. The module measures approximately 94 x 48 x 20mm, it weighs just 320g and comes supplied with a 190mm 3.5mm jack plug to 3.5mm socket adaptor lead.

Adaptor Options

 

 

Order online or click Here to order by post.


NEW! CDV-700 Headphone Adaptor, (CDS002) £7.99 inc. UK p&p

Attention CDV-700 fans! As you know these instruments are fitted with an obsolete screw-fit connector that makes it impossible to use ordinary headphones, but not any longer!  The boffins at anythingradioactive have been beavering away and come up with a solution, a CDV-700 to 3.5mm jack adaptor module. It screws onto the standard headphone connector and all you have to do is plug your favourite headphones into the jack socket on the top, it's as simple as that.

 

Due to minor differences in the design of the CDV-700 headphone socket over the years we have had to develop a number of variants so we need to know which make you have: so far we can accommodate all series 6A and 6B models from Anton, ENI, Lionel and Victoreen - just indicate your preference on the order form below.

CDV-700 Model

 

Order online or click Here to order by post.


CD V-742 Dosimeter and Charger, £25.00 inc. UK p&p

If the ‘big one’ had happened back in the 60s or 70s, and you were still around to tell the tale, then you’d consider yourself fortunate to have one of these about your person. The CD V-742 is a pen-shaped, pocket dosimeter. It tells you how much radiation you’ve been exposed to; all you have to do is hold it up to the light, look through the eyepiece on the top and you’ll see the accumulated dose (0 - 200 Roentgens) on a scale inside the device. To power it up just press the pen down on the socket of the supplied CD V-750 charger; a light press illuminates the scale for a check reading and a slightly firmer press charges the device and lets you zero the scale.

 

The charger is powered by a single ‘D’ Cell, which lasts for months. Both items were made in the 1960s for the US Civil Defense Corps and they were built to last – to survive a nuclear war in fact. They’ve been in storage for the past 40-plus years, there’s some small signs of wear as they’ve been periodically taken out and tested but on the whole they are in very good condition with just a few chips and scuff marks here and there. Inside the metal case there’s a spare bulb and a circuit diagram.

Stocks are limited so hurry!

Order online or click Here to order by post.

 

The CD V742 comes with the original instructions, (or a copy depending on our stocks). And yes, as far as we can tell they still work but in the absence of highly radioactive fallout we haven’t been able to fully test them, even so you had better hope you never see that indicator suddenly move…


NEW CDV-715 Survey Meter, £45.00 inc UK p&p

SOLD OUT

We have managed to secure a very small quantity of Victoreen CDV-715 Survey Meters, made in the 1960s. These were produced during the Cold War for the US Civil Defense Corps, but were never issued - they have remained in storage until recently. Considering their age, they are in good condition and come with a copy of  the instruction manual.

 

These units are believed to be in  working order, but we have to say straight away that if you ever see the meter on one of these instruments move you have probably just survived a nuclear explosion!

 

The 715 was designed for a post attack situation and only responds to dangerously high levels of radioactivity (scales read from 0.5 – 500 Roentgens/hr) to let survivors know it was (relatively) safe to emerge from their fallout shelters. In other words they are not capable of detecting natural or even slightly elevated levels of radiation so they are being sold for their novelty value only.

 

These instruments use an Ion Chamber detector module and are powered by a single ‘D’ cell. It has two controls, a rotary switch for circuit/battery test, meter zero and range selection, and a rotary control for meter zero adjustment. The all-metal case is water-resistant and the standard of construction, and materials used, are of the highest standard – as befits a product built on a cost no object government contract. It might not do much, but it’s a real conversation piece and, who knows, one day it may come in useful…

 

Stocks are limited so hurry!

Order online or click Here to order by post.


DRSB-01 Pocket Geiger Counter/Dosimeter. £49.99 inc. UK p&p

Built to military spec and featuring a 108 mm Geiger-Muller tube this is one of the most sensitive models in our range, reacting to beta and gamma radiation from 0.003 microsievert, clicking between 10 and 50 times a second in response to background radiation. It has visual and audible indicators plus a extra red high level activity warning LED. The case measures 150 x 65 x 22mm and a pair of AA batteries will last for 100 hours or more. NB: card and sticker not included (display only)

 To hear it in action click   

Order online or click Here to order by post.

Also comes with FREE Category I warning sticker

 


Original manuals for the CDV 700 Civil Defence Geiger Counter (CDV001)

From £1.50 inc. UK p&p

If you feel in need of a spare,we have a limited number of original instruction and maintenance handbooks for the ENI, LIONEL & VICTOREEN CDV 700 civil defence Geiger counters for sale. 

 

Dating from the 1960s they are collector's items in their own right and feature everything you ever wanted to know about this device: how it all works, maintenance, operation, storage etc.,plus a detailed circuit diagram, printed circuit board design and layout and full component list. In fact, all the information you need to build your very own Geiger counter (we may even be able to help you with some of the parts)

 

Order online or click Here to order by post. We also ship worldwide. click for prices and information.

 

Models

 

 

Some satisfied customers:

 

I just wanted to thank you for the CDV-700 speaker and adapter. I was very surprised that the items arrived so quickly. The speaker and adapter work great! It's a well-made product.

Mark, Alaska.

 

The geigeractiv arrived safe & sound only a few days after the order and is ticking away happily.

Martina, Dublin

 

My order of the DSRB-01 unit arrived yesterday. I am quite happy about it. Everything works fine. Thank you for fast delivery. I will have a look at your offerings in the future.

Ulrich, Germany

 

Thank you so much for everything, I'll recommend your web site.

JD, France

 

The Geiger counter has arrived in perfect condition and it is working. 40 years on the shelf, add some batteries and it works.... amazing!

CM, Germany

 

Thanks for the Pancake ENi Survey meter; it's working fine and it's great. Very pleased with it.

JP Chester

 

I would like to say a big thank you for the customer service that I have received. The package arrived quickly, and the after sale service has been excellent.  I would recommend anythingradioactive to my friends.

MG, Manchester


About the CDV-700

The CDV-700 is a true Geiger Counter, displaying an accurate count (when properly calibrated) of beta and gamma jsources. This particular model was manufactured for the Civil Defense Corps by serveral companies in the US, including ENI, Victoreen and Lionel Electronic Laboratories (who also made toy trains). They were produced in fairly large numbers throughout the 1960s and 70s in preperation for expected nuclear conflict.

 

These devices are based around a 6993 Geiger Muller tube, driven by a simple high voltage circuit producing around 1000 volts. The output from the tube is processed by a transistorised pulse shaping network and integrating circuit, to operate the moving coil meter; a simple audio amplifier drives the supplied headphone.  Many different types of geiger counter were produced during this period but the CDV-700 6b is one of the most popular due to its high sensitivity, rugged construction and legendary reliability. 


 

Copyright © 2006 - 2010 anythingradioactive.com.