Mullard GZ34 5AR4 Rectifier Tube 4 Notch OO-Getter BVA Blackburn 1967 NOS

Model: 1967 Mullard GZ34 5AR4 (Made in United Kingdom). B7I2 (B = Blackburn, 7 = 1967, I = September, 2 = Week 2 of production month). This set was tested and certified by RoeTest V11 tester with the following result.

Measured plate current (IA): 68.89/65.89 mA - 106%/101% (100% = 65 mA). NO shorts, leakage or gas. Curve trace is also included in the original RoeTest report.