NOS Philips Miniwatt (Mullard) ECC34 Valve/Vacuum Tube - AVO Tested Strong and balanced, new in box. Frosted glass, pan getter, black base. Tested on a recently calibrated AVO VCM 160 with the following results.
Valve 1: A1 9.8 2.4. A2 9.6 2.3. AVO NOS Specs: IA = 10.0 GM = 2.2. No leaks or shorts, solid bases, shiny pins.