[R-390] Never heard the real R-390

[James M. Walker]

That is because the LS-166 is termed a "Communications Quality" speaker
system.
Jim
WB2FCN

----- Original Message -----
From: "Tom Norris" <r390a at bellsouth.net>
To: <R-390 at mailman.qth.net>
Sent: Thursday, July 29, 2004 1:06 PM
Subject: RE: [R-390] Never heard the real R-390


> And the Hammond transformer has better freq response than
> the one out of the LS-166
>
> The Other Tom NU4G
>
> >You can also purchase a new Hammond matching transformer from AES in
> >Tempe, Az.
> >for $18.95 USD, that is made for this application.
> >
> >Tom WC9M
> >Moline, IL.
> >
> >
> >>  Chuck, just in case you don't know, the speaker output is 600 ohms
> >>  impedance. You can use a cheap radio shack 12 volt filament
transformer
> >>  (smallest one) to match the common 8 ohm speaker. Even then, stock
audio
> >>  isn't impressive. Steve KJ8L
> >
> >A good source for 600 Ohm to 8 Ohm matching transformers is the LS-166/U
> >loudspeaker used with various vehicle and manpack sets. The transformer
is
> >rated at 2 Watts and has a stated frequency range of 250 c/s to 5000 c/s.
> >Either use as-is or connect to a better 'speaker for improved "Fi".
> >They are not too hard to find even in the UK or Europe so I imagine even
> >easier in the US.
> >
> >Andy G8JAC
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