[Milsurplus] 71A tube

[revcom at wbsnet.org]

Like some of the engineering circles I have been in, "Works, and we
got lots of them".

Rod


 I am in the process of restoring a Weston OQ-2 tube tester. The question I
> have is why did they use a 71A tube, a triode as a rectifier for obtaining
> DC voltage for the short test? What advantage is their to using a triode
> with the grid connected to the plate as a diode? Not to mention that the
> plate current capability of that tube is only about 10 Ma. So why did they
> do this? Was thinking of replacing the defective tube with a diode and a
> current limiting resistor installed in an old tube socket but wanted to
> know why they did this in the first place.
> Ray Fantini KA3EKH
>
>
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