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Help with locating a Victoreen Thyac (Model 389)
Radsafers;
First let me thank everyone who assisted me earlier with finding a tech
manual on this historical instrument. It was a great help!
We have now figured out that the electonics in this instrument may have
given results that are significantly different than the theoretical values
that we have calculated/inferred for it today. In order to accurately
determine the Thyac's MDA (as it was used in the 1950's), we should probably
try to obtain and test an original instrument.
If anyone has access to a WORKING Victoreen Model 389 Thyac with a 1B85 thin
window probe, please contact me on private e-mail. We would be interested in
borrowing/renting the instrument to perform some simple tests.
I have already contacted Victoreen, and the Thyac in Dr. Frame's excellent
collection is not functional.
Thanks in advance.
-----------------------------------------------------------
Harry Anagnostopoulos, CHP
Senior Health Physicist
SAIC
9921 St. Charles Rock Rd.
St. Ann, MO 36074
(314) 429-9340 x22
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