Selenium rectifiers

[bob91343]

Realize that your 280 mA reading isn't accurate, as it's a pulsating DC, which most milliammeters won't correctly measure. Having said that, it's probably not that far off.

[jr_tech]

Originally Posted by bob91343

Realize that your 280 mA reading isn't accurate, as it's a pulsating DC, which most milliammeters won't correctly measure. Having said that, it's probably not that far off.

But there is a fair amount of filtering (150uF and a choke) before the resistor and meter, shouldn't the ripple be pretty small at that point?
A better measurement would be to place the current meter in the B+ source lines (255V, 215V and 145V), one at a time and add the results.

jr