P-Series Valves, what to do with them?

[pwdrive]

Can we try to clear up this PL84/EL84 equivalence question please. Ignoring heater voltage of course.

Trevor has asserted that they are equivalent David (Geordie) has said that PL84=EL86. Since the EL86 is different to the EL84 I don't see how both claims can be true.

Philips PL84 valve data here:

https://frank.pocnet.net/sheets/030/p/PL84.pdf

Philips EL84 valve data here:

https://frank.pocnet.net/sheets/030/e/EL84.pdf

PL84 triode connected data, there's two lots of figures for two different Va and Vg, take one of them eg: Va = 100v, Vg = -ve 8v, Ia (no signal) = 30mA, now look at EL84 triode connected Ia-Va curves and try and make the above figures tally....I can't, that suggests to me that there is a difference if I've interpreted things correct?

Lawrence.