[Amps] Results from new PSUD... resistor b4 the B+ filter caps !

Roger sub1 at rogerhalstead.com
Thu Feb 11 22:48:50 PST 2010



Bill, W6WRT wrote:
> ORIGINAL MESSAGE:
>
> On Thu, 11 Feb 2010 18:29:58 -0500, Roger <sub1 at rogerhalstead.com>
> wrote:
>
>   
>>>   
>>>       
>> Ohhh...Yahhhh! They are loud too<:-))
>> The first one was in a fairly new Dentron DTR-2000. Actually it was in a 
>> lower voltage circuit. It blew the can right off the cap. The *empty* 
>> can hit the top of the amp so hard it squashed down. It looked a lot 
>> like a 38 wadcutter that had hit something really solid. <:-)) The can 
>> started life at roughly 5/8" to 3/4" in diameter and about 1" tall.
>>     
>
> REPLY:
>
> I doubt if it was shorted. Most likely it was leaky and that caused it
> to overheat. One that is dead shorted is not likely to overheat at
> all. Ohm's law, ya know.  :-)
>   
I'd think even were it a short, it would be cleared rather quickly as at 
best they are just foil. OTOH they are probably constructed better than 
the Lithium batteries. <:-))  They've had a lot more practice at getting 
it right, although the construction is quite similar.

73

Roger (K8RI)
> 73, Bill W6WRT
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