My Second Radialva Groom Restore

[Yorkie]

We still haven't answered John's original query - will it be detrimental to the field coil or operating conditions of the set if the 450 Ohm field coil is fitted as a substitute for the original 3000 Ohm one. True, it doesn't have to carry the full HT as would be the norm, though I can't help but think that it's less than ideal, and that to be on the safe side - initially at least - it should perhaps have a 2K2 resistor in series to bring up the total resistance to nearer 3K. (From the voltage drop across the coil, the current drawn through it can of course be determined).

Any thoughts anyone?