[ARC5] Acceptable warmup time for SCR-274N, BC-455-A

[CARL HUETHER]

The leaky bathtub caps should have very little effect on B+ stability as they will be in the ~100K range as a load and that stabilizes in under a minute. The tubes are still in their own warm up phase. Even real leaky caps will/should not pull down any PS worth its salt.


> On February 16, 2019 at 1:17 AM Robert Downs via ARC5 <arc5 at mailman.qth.net> wrote:
> 
> 
>     Your BC-455-A should settle down in about the same time as the BC-454-B.  The 455 probably has some leaky capacitors that slowly re-form but not permanently.
> 
>      
> 
>     Robert Downs
> 
>      
> 
>     From: arc5-bounces at mailman.qth.net [mailto:arc5-bounces at mailman.qth.net] On Behalf Of Dave Kirk via ARC5
>     Sent: Friday, February 15, 2019 23:36
>     To: arc5 at mailman.qth.net
>     Subject: [ARC5] Acceptable warmup time for SCR-274N, BC-455-A
> 
>      
> 
>     I'm being told that the command set receivers or quite stable units I must say the BC-454-E I have is vary stable after about 5-10 min or so. My BC-455-A on the other hand won't even start to settle down till after an hour or more so is this normal I'm thinking not.
> 
>      
> 
>     Dave
> 
 

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