[ARC5] Use of a Variac

[jphutch60bj]

For those keeping the Tube rectifiers in place:

you could rig up a    1N4007+10K resistor slipped in some plastic tubing 
   + wired to alligator clips and jumper the tube socket pins

Apply through a Variac and bring up so you can get some low voltage 
current on to the cap without bring up the voltage to half staff ?

just a thought

On 4/23/2020 4:47 PM, Scott Robinson wrote:
> Folks,
>
> Most electrolytics will re-form by applying voltage across them. 
> Problem is that if the rated voltage has deteriorated from, say 450V 
> to 200V, and you apply 350V suddenly, the forming current can be quite 
> large and generate destructive amounts of heat. The reason for current 
> limiting or Variac use is to limit the forming current and consequent 
> heat by spreading the forming process over time.
>
> Peace and health,
>
> Scott Robinson
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