[Boatanchors] OT power xfmr protection

Paul Kraemer elespe at lisco.com
Wed Mar 30 21:06:11 EDT 2011


Fuse ct of hv secondaries. Like tv sets used to have
Paul K0UYA
----- Original Message ----- 
From: "Dick KF4NS" <kf4nsradio at verizon.net>
To: <boatanchors at mailman.qth.net>
Sent: Wednesday, March 30, 2011 5:10 PM
Subject: [Boatanchors] OT power xfmr protection


> Need some ideas here. My brother has an old Seeburg jukebox and 
> someone told him he better get the xfmrs some overload protection. 
> This thing does not have a single power supply. Each audio amp (R-L) 
> has it's own power supply.
> 
> I thought about getting him those overcurrent relays for the 
> secondaries and the primaries already have fuses. Maybe just the old 
> fashioned crowbar would do the trick. Zeners would be useless at those 
> voltages and an SCR would be a bit of overkill.
> 
> What are your thoughts?
> 
> 73, Dick KF4NS
> St Petersburg, FL 33714 USA
> Keep The Glow! 
> 
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