[Amps] Dentron 160-10L 10 meter issue

[Tim Kass]

Hey Group, 
 
Well, finally got around to completing the project I bought a year ago...the amp had blown diodes.  I replaced all the diodes, put in a circuit board for the new caps, upgraded the 811A's to new 572B's, put in a 6" inch fan, new circuit breaker and new, heavier, RF choke with suppressor kit (Ameritrons kit) ..works well except when I tried it on 10 meters last night...SWR infinite....was this one of those amps that Dentron put in the block for the 10 meter band so the Childrens Band folks dont try to use it?  Seems like its a dead short...simple to open it back up again but also thought maybe it could be parasitics, etc...the manual states in capital letters to have the amp load and tune positions set to their specifications before attempting to transmit.  I know Dentrons had issues with parasitics, reason for the new RF choke and top mounted suppressor kit... any thoughts?  Carl?  Just like to hear any suggestions or experiences before I open it
 back up again ... also..case is removed at it was shorting out to the top of the case on 20 meters, poor Dentron design to have any metal THAT close to the top of the main coil...probably what blew it up in the first place..guy told me he was operating it on 20 meters CW when it blew. 
 
73, Tim K8WBL