I just finished the Supro Spectator over the weekend. I took a lot of pictures, so I may as well post them all, huh?
I've had a Vintage 47 speaker cabinet for 5 or 6 years and never did anything with it. I think it was an early prototype that David Barnes (he is the guy behind the amps) made and sold cheap. It came with a simple sheet metal chassis, but I never got the energy to build an amp on it.
Anyway, I had scouted around on and off for a vintage Valco chassis to go in the cabinet instead. I got this Spectator chassis a year or so ago and found out it was for a smaller cabinet. So I needed to adapt the cabinet a bit.
So I decided to make a simple wood block/mounting that could be removed if necessary.
Off to the bandsaw to cut the pieces out of a scrap 2x4 stud.
Bandsaw, you say? Longtime readers will recall my
TMD helped carry it down to The Dungeon. Actually, he is sort of like Superman, so he carried it and I watched. What a bargain for me. It's now in the corner where my formerly disgusting but now repainted door is.
Now I have no excuse to start building actual instruments.
I am currently looking at plans and hardwoods. I have some trepidation, but if I goof, I figure I'll just burn the failures in the fireplace.
I cut a block with a ledge of sorts at the back where the back lip of the chassis will attach. I'll make a second piece to fill in the gap between this block and the side of the cabinet to the left.
You can see that due to the size of the chassis, it will sit a bit further out than the 'stock' (aka correct) chassis would sit. I'll compensate for that too.
This was SO easy to cut with the bandsaw. What did I ever do without one? I shudder at the thought.
First I cleaned it up and then polished it with Griot's Fine Hand Polish.
You have to love those old tube sockets with the tube type printed on them.
I did polish the power transformer end bells, but they still look blah. If I was crazy, I'd take them off and paint them. But I'm not that crazy, it's too much work and it's too cold outside to paint. That's my story and I'm sticking to it.
Here I'm drilling and mounting the wood screws that will hold the block to the side of the cabinet. This way I can just remove the thing if I ever build a different chassis.
Then we drive a pilot hole for each of them, utilizing our high-tech depth gauge. The walls of the cabinet are only about 12mm thick - don't want to inadvertently drill through them.
These cordless drills have changed my life. And to think I used a corded drill for decades.
Aside: I love countersinks. Love them.
I've been using these stoopid pencil sharpeners for a while now. I don't like them at all!
Need to find another solution. Hmmmm.
Then I realized I hadn't done the speaker wiring.
No wonder it didn't make a sound when I turned it on. DOH!
Not the greatest look, I know. I could have put a piece of sheet metal over it and painted it.
But from 3 feet away, it's not noticeable. This is the back of the amp anyway, so who will see it?
I polished up the switch and the can cap (see it peeking out above). Came out well.
That was the postal code for the Valco factory. The current zip code system (Zone Improvement Plan) wasn't implemented until 1963 - 11 years after this amp was built.