Heath By Mullard GZ34 5AR4 Vacuum Tube Great Britain Tested Dual Halo Getters Mullard GZ34 , 5AR4
Характеристики
One Heath By Mullard GZ34/5AR4 Vacuum Tube
One vintage Heath By Mullard GZ34/5AR4 vacuum tube in very good cosmetic condition.
Recently removed from a Heathkit AA-100 tube amp.
Signs of age and use.
Dual halo getters.
Some smearing of the original graphics remain.
Stamped : GZ34/5AR4 , Heath By Mullard , Made In Great Britain.
Mullard code : f31 , B9H.
Heathkit code: 113 , 1022.
Tube has been tested on my B&K Model 707 Dyna-Jet Dynamic Mutual Conductance Tube Tester.
The results are : 108 , 111.
A test result of 66 or more on a scale of 0 to 120 is required for a GZ34/5AR4 tube to be graded as "good" on the B&K 707 tube tester.
CHECK MY OTHER AUCTIONS FOR THE ENTIRE HEATHKIT AA-100 TUBE COMPLIMENT
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