A thing of beauty from Dayton, OH

I had other creative (annoying) thread titles, too. Like "A pretty complicated way to ship an RCA 12AX7" (found one in the upper compartment).

In either case, it's a Jackson 648!

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I plan to calibrate it according to the instructions here.

I have a B&K 606 that's been useful for quick checks, but this one's pretty satisfyingly built. Oooh, look at those push buttons. . .
 
I like it! Wondering if we have a tube tester thread yet? I have a couple I could post.

A see some mentions when I do a simple keyword search, but no dedicated thread.

I have to say, I never thought I'd be into a tester in this way, but after calibrating the B&K (pretty simple) I found myself looking at them a lot. A somewhat specialized version of a tool fetish, I guess. The 648 really speaks to me, and this one's in nice shape.
 

John Frum

Secret Society Member
Wonderful! I had no idea the Jackson testers were made in my hometown!

Until deindustrialization hit us like an atom bomb (an invention partially developed in Dayton), this city used to manufacture a ton of stuff.

I’m on the lookout for a Staco variable transformer. I used to live about a block from where they were made. I know Staco OEM’d transformers for hi-fi, too, but I’m not sure what products you’d find them in.
 
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Wonderful! I had no idea the Jackson testers were made in my hometown!

Until deindustrialization hit us like an atom bomb (an invention partially developed in Dayton), this city used to manufacture a ton of stuff.

I’m on the lookout for a Staco variable transformer. I used to love about a block from where they were made. I know Staco OEM’d transformers for hi-fi, too, but I’m not sure what products you’d find them in.


I have a Staco variac. Didn't know that they were made there.

And, recently, I was looking really hard at a listing for a Shopsmith not too far from me. Seemed like the wrong time to be going out to load up a big power tool. But that would have given me a Dayton trifecta!
 
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