[Amps] MLA-2500

Gudguyham at aol.com Gudguyham at aol.com
Tue May 19 13:30:19 PDT 2009


The 20 ohm step start resistor should be OUT OF THE CIRCUIT in less than  
about 1/2 second.  If the resistor is burning up it is because the step  
start relay contact is not shorting out the resistor.  I'll bet your step  stat 
relay is bad or the contacts are bad.  The reason why it only burns  with 
the tube in the slcket is because there is too much line current being  drawn 
and over heating the resistor.  With no tubes in the socket there is  not 
enough line current to burn it up.  Check your step start relay or the  
contacts and you'll see one of the 2 are bad.   Lou
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