[ARC5] BC 453 request - ham radio

[CARL HUETHER]

The USN commissioned a study in the late 50's or so and found that leaving all the tube gear on 24/7 reduced down time.

Not a good idea in some ham and old military gear where the original paper and electrolytic caps can create a lot of smoke and damage.

Even after full recaps, resistors, etc I wont leave any tube equipment on 24/7 or especially overnight.

Carl




> On November 1, 2019 at 1:21 PM Richard Knoppow <1oldlens1 at ix.netcom.com> wrote:
> 
> 
>     This is true but also keep in mind that running an 
> incandescent lamp continuously also results in longer life. Same 
> is true for vacuum tubes. The stress at turn on especially but 
> also turn off shortens the life. Often long service lamps are 
> used in places where they run continuously which can account for 
> part of the longer life. You may have noticed that most of the 
> time when a lamp fails it does so at turn on.
> 
> On 11/1/2019 9:36 AM, D C _Mac_ Macdonald wrote:
> > Easy solution:  Buy commercial rough service incandescent lamps 
> > rated at 130 Volts!  They will last for many years.  A few in my 
> > house lasted over 12 years or more from original 
> > installation/construction.
> > 
> > 73 de Mac, K2GKK/5​
> > Since 30 Nov 1953​
> > Oklahoma City, OK​
> > USAF, Retired ('61-'81)​
> > FAA, Retired ('94-'10)
> 
> 
> -- 
> Richard Knoppow
> 1oldlens1 at ix.netcom.com
> WB6KBL
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