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echo: ham_tech
to: IVY IVERSON
from: STEVE BRACK
date: 1997-10-01 21:27:00
subject: Small AF Amps

* In a message to Steve Brack on 09-30-97, IVY IVERSON said the following:
II>  SB> Well, Radio Shack's 277-1008 (for about $10) combines a
II>  SB> speaker & an amp that can be powered by 9VDC or from a $7 AC
II>  SB> adaptor.  Almost every store stocks them.
II>  
II> That's a complete amp, I was referring to a module.  (I suppose one could
II> gut one of the ones you mention and put it in a different case, though.)
II>  
II> The amp I am referring to was a PC board about 1 1/2 X 3 inches, and you
II> could feed a microphone into it, (I used small loudspeakers and output
II> transformers connected in reverse), and it would put out a couple of
II> watts - plenty to drive 4 speakers in different areas to reasonable
II> volume in two buildings.  (It was an all-call system which used the
II> black-yellow pair in the phone wiring).
        Well, I haven't seen that item in my store.  Sorry.
II> But I guess RadShack doesn't think that people actually BUILD things any
II> more!
        Of course, we do!  In fact, there are more kits available now
        than ever before.  Our Radio Shack Unlimited in-store catalog
        carries many kits of various levels of difficulty.
II> I don't care to etch PC boards unless I have to, (it's messy and the
II> chemicals are poisonous and I don't want my cats to get into it), but I
II> would like to be able to pick up an occasional module, such as a small
II> audio amp, and incorperate it into something I am building.  (Heck, you
II> can never have too many small AF amps lying around!)  :->
        True enough. 8-)  My favorite (in-store) module right now is
        the IC voice record/playback module.  I had a woman install
        one in her son's teddy bear.  Now, every time he pushes its
        (nose?), mom tells him he's loved.  Pretty neat, IMO.
 -- SPEED 2.00 #2712: (A)bort (R)etry (A)sk 12 Year Old?
--- GEcho 1.00
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