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Tim Williams Tim Williams is offline
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Default Toob Amplified PC Speakers

So I guess it really comes down to... what do you want?

Can you follow a schematic? (I should hope so... :-p ) Is that good
enough for you? Do you have the tools to cut/punch holes in sheetmetal to
mount sockets, or would you prefer a PCB mounted stuff-it-and-go solution?
Would you prefer plans and drawings, or can you handle that
seat-of-your-pants style?

If you can afford a kit (and don't want the hassle of fully making
something yourself), then that's the way to go.

If you can't afford a kit, but don't have the tools to build a chassis and
stuff, you're rather limited, but not screwed. For instance, PCB mount
sockets could be dead-bugged on copper clad, just as well as ICs can be.

If cost is a big factor, you're probably better off with transistors. You
can get the BOM cost in the $100 range for a basic stereo SE (~3W) amp,
but not much less, big costs being the two OPTs and one power transformer.
(Edcor and Hammond are the big names in retro audio transformers these
days.) If you don't want the hassle of ordering parts and working from a
schematic, yeah, you're better off with a kit, which includes NRE and
retail markup, and as mentioned earlier, runs you over $200 or so. That
price range is basically your pay-to-play range with tubes, unless you've
inherited a bounty.

(Oh, and if you want more power on a budget, I have prototype designs for
class D tube amplifiers. ;-) )

Tim

--
Seven Transistor Labs
Electrical Engineering Consultation
Website: http://seventransistorlabs.com

"Tim Wescott" wrote in message
...
It's winter, and the amplifier in my PC speakers just died.

I think it'd be kinda cool to have a toob speaker amp, but I'm too lazy
(and time-challenged) to build one up from scratch.

Are there, by any chance, kits out there? I'm not looking for nickel-
cored transformers with solid silver windings, genuine paper caps rolled
on the thighs of virgins, toobs dipped in LN2, and all that crap: I'm
just looking for something that'll give the audio quality of a mid-range
amplified speaker set, in a cabinet that shows off the fact that it all
uses ancient technology to get the job done.

Suggestions welcome.

TIA

--

Tim Wescott
Wescott Design Services
http://www.wescottdesign.com



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