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

[Tom Norris]

Nahhhhhh, I'd have never knowb it, he says,
looking at the probably half dozen LS-166's
and other green radio gear on his shelf.

;-)

Tom

>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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