[Amps] Energy stored in capacitor bank ?

[R.Measures]

R depends on tube type, Frank,  50½ is about right for an 8877.

On Oct 5, 2005, at 10:19 AM, Frank Goenninger DG1SBG wrote:

>
> Am 04.10.2005 um 04:48 schrieb R. Measures:
>
>>
>> On Oct 3, 2005, at 7:54 AM, Frank Goenninger DG1SBG wrote:
>>
>>
>>> Hi all:
>>>
>>> I am finishing a power supply for a moderate amplifier (in terms of
>>> this reflector).
>
>>> Am I right in simply calculation the stored energy as
>>>
>>> Cres = 4200 uF / 14 = 300 uF
>>>
>>> W = 1/2 * C * U * U = 0,5 * 300 *10^-6 * 3250 V * 3250 V = 1,6 *10^3
>>> J = 1,6 kJ
>>>
>>> ??
>>>
>>> This seems a rather large value ....
>>>
>>
>> True, Frank, but 1600J is not that difficult to find a suitable 
>> glitch R for.  Globar's SP series is what you need.
>> Kanthal-Globar  order desk  - 716 286 7610
>> http://www.globar.com/
>
> Thanks, Rich. I figured from their catalogue that I'd need an 888SP 
> model with a R value of 50 Ohm. Correct?
>
> 73 Frank
>

Richard L. Measures, AG6K, 805.386.3734.  www.somis.org