I am ressurecting a Viking Invader 2000. It is coming back to life reasonably well. Almost ready to pop in the 4-400's and burn the house down.
I had to replace a rectifier and a couple of electrolytics in the exciter supply. The balance of the orignal electrolytics all formed such that each draws no more than 2 MA @ 450 DC. Not bad for 40 year old firecrackers! Some crud managed to get in the threads of a couple of the padders in the driver tank. I have cleaned the threads of the trimmers and have good output in the various modes. Sure is a lot easier than adjusting a phasing rig! Dirt or oxidation had gotten into a couple of tube sockets and this made the output unstable. Eventually, alignment of the various stages yielded good results - I just had to periodically wiggle a mixer tube. Thus, the most trouble I am having is related to intermittant connections on the various 7 & 9 pin tubes. Any body have any "sure fire" tricks on cleaning tube sockets and pins of minature tubes? TNX de KA4JVY Mark __________________________________________________ Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now. http://mailplus.yahoo.com
