[ARC5] R-23/ARC-5

[Richard Knoppow]

    Thanks, looks like a neat instrument.

On 3/1/2019 4:10 AM, Michael Hanz wrote:
> On 2/28/2019 11:00 PM, Richard Knoppow wrote:
>> How are you measuring radiation, or lack of it?
> 
> AN/PDR-27 GM Survey Meter:
> 
> "The AN/PDR-27 is described by the Directory of Radiac Equipment 
> (1961/62) as a “portable, watertight, battery-operated instrument 
> that furnishes visual and audible indication, detection and 
> computation of radioactivity data.”"
> 
> "All the models employ two halogen quenched GM tubes: an end 
> window GM, and a small side window GM.  The latter is only used 
> when measurements are performed using the two higher scales (0-50 
> and 0-500 mR/hr). Some models (e.g., Model J) employ a 
> two-compartment probe where both GM tubes are piggy-backed 
> together.  Other models have the small higher range GM tube 
> housed inside the case."
>

-- 
Richard Knoppow
1oldlens1 at ix.netcom.com
WB6KBL