Home


Precision 10-12 Tube Tester

 

HOME

FOR SALE & GALLERY RADIOLA INFO WHAT'S NEW RESOURCES
LINKS AT AUCTION INFORMATION CONTACT updated 8/11/2017


w/G-140 adaptor

chassis underside

w/CRT adaptor

Ca: late 1940s' - early '50's, one of the better lower priced tester's. With the G-140 adaptor (not included, available as separate order) and updated tube charts, it will test nearly  all consumer tubes from the late 1920s - 1970s and some industrial & Western-Electric numbers. The tester is equipped to test all but the later tubes that were introduced in the late 1960's & '70's. Those are the tubes requiring the G-140 adaptor.

One of Precision's  best  tube  tester,  They refer to it as an "Electronamic" tester, Presicion's version of a Transconductance tester which is somewhat similar to a Mutual Conductance tester but uses AC voltages instead of DC. The other difference; it does not provide direct Gm reading in Micromhos. The test provides the "Quailty" of the tube under test with a percentage reading of the expected value. IE, the read-out will show the percentage of a predetermined value for an average tube of the type under test. A Mutual conductance test is best but the Percentage Value test is better than a straight emersion test.
 

<  Operating instructions are available for the  above & other models, click on image for more info.
 

this instrument has been sold, photo reference only
RadiolaGuy.com
© C.E. Clutter

Home

Member of:
Northwest Vintage Radio Societ

Member of:
Antique Wireless Association

return