Convert Technics SA 200 to tube amp

[Pegamin]

Hello,
I know this will be viewed by some members as a serious anathema but...
I have a Technics SA 200 that powers up but has a hum in both channels, and the left channel is dead altogether. I've seen this problem in other topics and I know it's fixable, but since I don't need the receiver...
I was thinking of salvaging the real cool enclosure (and chassis), and try to fit in the components for a simple diy tube amp, possibly a "champ" type.
Do you think this is possible? The chassis and enclosure of your typical "Champ kit" cost at least $200, and I wanted to build a kit anyway, so I'd be saving some bucks. And the final result (a "head" type amp with the speaker separate) would be way cooler, I think.
Your two cents are appreciated.

 

[RossW]

The biggest problem I could foresee is that once you remove all the circuit boards and heat sinks I'll bet the chassis is pretty minimal. It will be hard to find good mounting points for transformers, tube sockets, etc.

 

[swechsler]

Also, many vintage Technics components used a hardboard (Masonite) case bottom rather than metal. And of course you'd have to do something about ventilation.

 

[Lavane]

I built a 6L6 single ended guitar amp head similar to a champ. I built the chassis with the tubes horizontal. If you have a good sized top vent and a bottom vent, along with adding some venting on the back, you may be ok.
If the old chassis does in fact have a fiber board bottom, that wouldn't be very good at all. You could use a piece of metal bent 90° long enough to punch holes for the tube sockets and mount them horizontally. A Champ uses 6V6's and it should be fine using them horizontally. I used 5881's, a rugged 6L6 since I mounted my tubes horizontally. You would have plenty of room to mount a turret board for the simple circuit along with the power and output transformers. Here is one I'm building out of an old reel to reel.
I used the case, transformers and original tubes. It's based on a Black Face circuit using a different output tube. I built it out of what I could scrounge from the reel to reel and existing parts I had on hand. It will have an 8" speaker when finished. Its meant to be a an amp my son can haul around without worrying about it getting banged up. Junk yard builds are fun.

 

[gadget73]

Unless you're going to make all of the controls and functions work, I don't really see the point. It would be a box with a lot of dials and knobs that do nothing.

Generally speaking solid state gear chassis don't lend themselves terribly well to use with tube gear. Lots of big holes for the boards rather than several small holes for tube sockets.