[ARC5] BIG Variacs and popping breakers.

[Scott Robinson]

But Arden, you miss the point: the cap or inductor supplies *only* the 
heater series string, which, for 300 mA tubes, only adds up to 68V.  The 
B+ runs off the line directly; I did mention the line cord has three 
conductors..but also failed to mention that none of them were safety 
grounds.

Peace, and no curtain fires,

/scott

On 12/11/16 12:43 PM, Arden Allen wrote:
>> This method is also useful for restoring the mid-30s AC-DC sets with
> resistive 3 wire line cords,the kind that set your curtains on fire. You
> don't want to use a resistor in the cabinet due to space and heat
> problems; a capacitor is just right...or certain sizes of fluorescent
> ballasts, just used as chokes.  ........
>
> The problem I have with series impedance voltage reduction is the
> deterioration of voltage regulation.  For an AA5 current is pretty
> constant due to the consumption of the 50L6, 50C5, etc. output tube.
> Likewise for receivers in general.  Anything with substantially varying
> consumption should be transformer supplied, IMMHO.
>
> Arden Allen
> KB6NAX
>
> He who is cruel to animals becomes
> hard also in his dealings with men.
> We can judge the heart of a man by
> his treatment of animals.
> —Immanuel Kant
>