Wells 4900's what do you think of them? I think they are pretty kick a$$!
I've been digging through my piles of chassis and found that I own quite a lot of 4900s. So I started testing them and ya know what? 9 out of the 10 I fired up work! (still have many more to test) The one that doesn't work is because years ago I didn't have a clue how to swap tubes.. Ended up choosing one that was waaaay to far off on ohms (left original yoke on it) that it shorted the chassis.
Anyway, this all started cause I rebuilt a k4900 for a customers qbert. It was one of the easiest cap kits I've installed. These chassis seem to be pretty straight forward and rocksoid.. Funny how it's taken me years to notice this! Eventhough I've been a huge Williams fan and most of the ones I've owned had 4900s in them.
Couple of things I've noticed. Some of the chassis have a very wide horizontal picture. One came out of a Jungle King and another came from a moon patrol. Are these set up at the factory with a larger width cap? Other thing I noticed was the damper control. Some use a pot attached to a very small pcb. Others use a wire that plugs into one of three pegs. Is that just a version or change in design?
Just amazed that I have so many of these kicking around that have had little to no work done to them in years and they fire right up. Also, are these flybacks bulletproof? Haven't seen one bad one yet.. Same with k4600s too..
I've been digging through my piles of chassis and found that I own quite a lot of 4900s. So I started testing them and ya know what? 9 out of the 10 I fired up work! (still have many more to test) The one that doesn't work is because years ago I didn't have a clue how to swap tubes.. Ended up choosing one that was waaaay to far off on ohms (left original yoke on it) that it shorted the chassis.
Anyway, this all started cause I rebuilt a k4900 for a customers qbert. It was one of the easiest cap kits I've installed. These chassis seem to be pretty straight forward and rocksoid.. Funny how it's taken me years to notice this! Eventhough I've been a huge Williams fan and most of the ones I've owned had 4900s in them.
Couple of things I've noticed. Some of the chassis have a very wide horizontal picture. One came out of a Jungle King and another came from a moon patrol. Are these set up at the factory with a larger width cap? Other thing I noticed was the damper control. Some use a pot attached to a very small pcb. Others use a wire that plugs into one of three pegs. Is that just a version or change in design?
Just amazed that I have so many of these kicking around that have had little to no work done to them in years and they fire right up. Also, are these flybacks bulletproof? Haven't seen one bad one yet.. Same with k4600s too..



