2 X 6F6g Sylvania Tubes Very Strong Pair (2 Pair Available)




Item History & Price

Information:
Reference Number: Avaluer:29781958Type: Vacuum Tube
Brand: SYLVANIA
Original Description:
2 x 6F6g Sylvania Tubes

Made in USA
U pick

Tested on Enhanced Triplett E3444 Laboratory Tester  by Paul Hart of Ga.

Pair #1 = SOLD2225 micromhos @ 32 mA
2150 micromhos @ 28 mA
Pair #22060 micromhos @ 32 mA
2070 micromhos @ 33 mA - missing guide pin
Industry Bogey(100%) = 2500 micromhos @ 34 mA +/- 10%

I do combine S&H

The measurements in this listing were taken on a Triplett 3444 modified to test the tube as an amplifier in acc...ordance with RMA/EIA specifications, utilized by all US and most foreign tube manufacturers.  This tester applies test conditions for this tube as shown below (including the precise filament voltage) and then measures transconductance (gm) in accordance with the engineering definition of gm. Tubes may also be operated under the test conditions for extended periods to be sure that it is stable.  A tube must be tested in this manner to compare its test results with the manufacturer’s original intent or with other tubes of the same type. Most tube testers do not apply the test conditions required or conduct a valid gm test. For more details on the test and our test equipment, please contact us.The test conditions for this listing are__250_Volts plate, __250_Volts screen, ___-16.5___Volts bias or Cathode resistance*


What were your tubes tested at?
I do combine S&H
 


00042


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