[Amps] Transformer Question

[Victor Rosenthal 4X6GP]

I suspect those capacitors were actually in series and he added up the 
values printed on them.

73,
Victor, 4X6GP
Rehovot, Israel
Formerly K2VCO
CWops no. 5
http://www.qsl.net/k2vco/
On 27/02/2020 14:45, Rob Atkinson wrote:
>> rather hefty choke and 500 uF of capacitors (replaced with computer grade
> 
> That is way way way too much capacitance.  With a filter choke (choke
> input filter) you probably only need at most 10 to 20 mfd capacitance.
> You have around 20 times too much and that's probably why the power
> supply tranny crapped out.
> 
> The Ameritron transformer will be okay IF you can get by with lower
> power out due to the 200 v. less of B+ AND you have to look at the
> current pull of four 811A filaments and see if they exceed the 16A
> filament rating of the transformer.   But, get the filter capacitance
> down to at most 20 mfd if the choke is around 10 Hy.   You can put in
> a pair of 10 mfd 2 KV oil caps paralleled--actually one will probably
> be enough.
> 
> 73
> Rob
> K5UJ
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