[Boatanchors] Tube radio and power outages

WA5CAB at cs.com WA5CAB at cs.com
Mon Sep 30 15:59:52 EDT 2013


If the momentary flickers (leading edge, not trailing) isn't accompanied by 
a spike, then the simplest and probably best solution is a latching relay.  
It can be either electro-mechanical or solid state.  And it can be done in 
each device or probably simpler and cheaper if you have several rigs to 
protect, to the circuit they are all plugged into.  Any time that the line drops 
out low enough or long enough to drop out the relay, it would kill the 
circuit.  The start method can be a START electrical pushbutton or simply a 
non-metalic rod to manually close the relay for START.  It will latch itself so 
long as the power is on.

In a message dated 09/30/2013 13:22:22 PM Central Daylight Time, 
foureyes779 at gmail.com writes: 
> Hello,
> 
> Just wanted to get an overall opinion of the best way to protect my tube
> radio gear from power flickers and outages. We have power outages several
> times a year during the winter months, and I was concerned that this may
> cause damage to my tube radio gear (Johnson Ranger II &Hammarlund HQ-150).
> Usually before the power goes out it will cycle on and off for an hour or
> so, and it seems that this rapid on and off would not be good for the 
> radio
> gear.
> 
> Thanks es 73 W7DTG Don

Robert Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480


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