I have cut the power cords off dead VCRs and other consumer grade junk, at least the cords are still usable for another project
Even at today's current copper price of nearly $4.50 perr pound, a cord's copper content would be worth only a few cents...
BTW, pre-1982 (and early 1982) copper pennies are real copper, the easy way to tell if they are copper or plated zinc, is the weight, the real ones weigh in at 3.11 grams, the zinkies are 2.50 grams each. At $4.50 per pound of copper, the copper pennies are worth three cents each, so they are well worth the effort to pick out of your change jar. 
The amp chassis might make for a good basis for an ST35 or PPP "36 watter" guitar amp, but at almost $114 including the shipping, that' still kinda pricey, even for a pre-punched chassis, especially when there is no guarantee that the trannies are any good, or if they are burnt out... A few years ago I bought a very similar-looking Knight 928 integrated PP 6BQ5 amp, from the early 60s. (see below)
The OPTs would be mid-grade quality at best, definitely not manufactured to Z565 or even Hammond specs. OK for a "garage" amp, but kinda dull and shallow- sounding, for more serious audio.
A few years ago, I picked up a early 1960s' vintage Knight 928 integreated amp at a hamfest in NH, it sounded OK, but not great, it was woefully short of sounding even close to an SCA-35 in side by each comparison..
Interestingly, the power cord had also been cut off, and then replaced rather sloppily (no strain relief, and the connections under the chassis were made with wire nuts) , but then that may have been because the insulation on the original power cord had simply dried out and cracked.
As far as I could tell, it was US manufactured and not Japanese, the vintage era was still a bit too early for that...
The wooden case for it for it may not be the original, the inner surface of both sides of the wood had been filed or sanded down, in order to fit the chassis which is about 1/4 inch too wide
It's going to someday become a "36 watter" PPP guitar amp, or two-channel "18 watter" .
or just an organ donor. At least all the tubes are still good, and it didn't emit any smoke, weird aromas, or flames during my testing
But before delving into that any further, I'll get done with modding the Knight 6L6 SE PA amp, into another Champzilla / Uglytron, first...
/ed B
Posted: Fri Jul 15, 2011 6:01 pm