Is that a piece of beveled plexi the binding posts are mounted to? Looks slick.
It's Home Depot "Acrylic", the Lexan was too much but may have held up better.
All done with simple handtools and by hand. Six varying grades of sandpaper finishing with 1500 and plastic polish to get that beveled edge. Mostly did it that way because it chipped a tiny bit on the tablesaw without a proper plywood blade. Delrin used for the backing on both the BP and RCA connectors.
The half-dogbone cutout on the Vampire backing plate to clear the screws was the toughest part and didn't come out as well as I had hoped.
Very nice work!! Nice amp as well. How does she sound? Any difference since the recap?
Time will tell as it breaks in. Bass seems a tad tighter and the damping more in control but that could simply be first impressions. I tired to give it some serious listening time before the recap, but time has a way of changing one's perceptions and it took a little while to finish it all up. Except for Yamaha's poor choice of binding posts, the build quality on this model is pretty great.
Wonderful!
The M-70 is a sweet sounding amplifier, but those speaker connectors are f 'ed up. I have to make sure one wire is "pushed-in" snugly. Visually speaking, no glue problem here, yet
That looks really good!
Did you replace the rca input jacks or did you clean the original jacks? And with what? I can't seem to find the yamaha style input jacks.
Where and what is that Black glue that you used to hold in the capacitors?
Beautiful work. My first separate power amplifier was an M-70 and I still have it (and use it).
What thickness of Delrin did you use? Did you just order it from a plastic supply house?
On the recap, did you replace all of the electrolytic capacitors in the M-70?
Thanks,
Sonavor