Philips radio BCA495U (Algemeen)

door Maurice , Dordrecht, 02.02.2019, 14:11 (1907 dagen geleden) @ Pandu Rajan

Important for you is that current and adjustment of that tube is the same
in both the situations.

So your measurement is correct and tube should be working in that setup as normal
with that current.

With tubes the issue is alway's current in relation to the condition of the tubes
also the lack of regulation of voltage alway's look for the voltage drop in each
circuit part in relation to the resistors value.

In that way you can solve problems with resistors value are way off, capacitors that draw current ore a bad tube.