[Moon-net] Old time delay relays in HV supply

[Richard Beerman]

Guys.... I am hoping someone can help me with this power supply  
issue. I have an old high voltage power supply here with a time delay  
relay in the 220 volt line going to the  B+ transformer. This thing  
is so old that the manufacturer says they don't recall it. I think it  
was a lazy guy. This relay has two acorn sized tubes on the top that  
obviously warm up and cause the internal relay to close in 2 minutes  
or so. Question... can these tubes be replaced? Does anyone know  
where these replacements can be found? Should I give up on this relay  
and replace it with a more modern relay? Thanks for the space  
here.    Dick  W5AK