Comment by JKCalhoun

Tangent. I got into building hi-fi tube amplifiers some years back. Part of it was a kind of nostalgia for the days of Heath-Kit which I am only just old enough to remember the company's sunsetting years.

It was a fun few years deep-diving into the various amplifier topologies, buying NOS vacuum tubes on eBay, looking through electronics flea markets for parts. I made several amps, tried different tubes, topologies.... Eventually I settled on a small stereo amp and designed a PCB for it, created a small kit even.

Using a drill press in the garage, a table saw to cut aluminum sheet stock down, even learning to powder-coat parts in a toaster-oven I picked up from Walmart, I made increasingly nicer looking amps. With two large output transformers and an even large power transformer they were fairly heavy beasts.

Nonetheless, though I built them a decade or more ago, every one of the amplifiers I built are still in use today. The music I am listening to at this moment is coming from one. Another is down in my "lab". I have given several away to friends, co-workers in the past.

I guess the reason for the tangent was to say that I did indeed find that when you have (or make) a thing of real quality it can last … perhaps a life time?

And thinking again a little nostalgically, I like that too about electronics just up to the post-modern era: a new electronics purchase might have cost you a paycheck or two, but you got I think more mileage out of that device.

EDIT: come to think of it, the heavy iron transformers are from the U.S., the tubes NOS from U.S. WWII bombers. I didn't built them of course with tariffs in mind, but surprisingly they are not so cost-dependent on overseas suppliers.

And here's a photo of the finished amp (from when I once considered selling the kits): https://imgur.com/PBKOQMk