[Premium-Rx] Watkins Johnson rack speaker

[libbysales]

Scott all you guys got it nailed pretty good, about the higher impedance and 
purpose. as well when using the part number of S-9903E, when you Google it, 
as I did after my first posting here,  3 pages of pretty solid info pops up 
as well several pictures of the unit..

And Michael, looks like one sold recently in the UK for 160 L  or pounds 
sterling..   I thought I might be overpaying at 150.00 but I fell trap to I 
wanted it ..  and really I think now on reflection I will go back and buy 
one more unit, I didn’t think I was gonna like it,  but after powering it up 
and all, I can see a place for it here locally, the audio from the speaker 
is a better dynamic range than I had expected and it fits my retro look ..

thank you all for the help on this ..

mac/mc  w5mc

--------------------------------------------------
From: "S. Schappert" <scottsch at ix.netcom.com>
Sent: Sunday, October 02, 2011 7:48 PM
To: <Premium-Rx at mailman.qth.net>; <libbysales at austin.rr.com>
Subject: Re: [Premium-Rx] Watkins Johnson  rack speaker

> Mac,
>
> You are probably referring to the WJ S-9903E Speaker Unit.
>
> It has 7 BNC connectors on the rear for 7 800 Ohm audio inputs from 
> demodulators / receivers. There is a 7 position rotary switch that selects 
> the amplified output. It is very common that audio is distributed through 
> coax on premium receivers for a multitude of reasons outside the scope of 
> this thread.
>
> The fact that the unit in question has an oval speaker installed, probably 
> eliminates it as an RF distribution amplifier.
>
> Please see:
>
> http://watkins-johnson.terryo.org/Documents/Manufacturers/WJ/Catalogs/1997%20Electronic/GENACS/9903E54.PDF
>
> I trust that this it what you have, and you might be able to confirm this 
> by looking at the WJ product plate attached to the upper right hand corner 
> of the front panel (if it has not been removed)
>
> Best regards to the list members !
>
> -Scott
>
>
>
>
> -----Original Message-----
>>From: Ed Tanton <n4xy at comcast.net>
>>Sent: Oct 2, 2011 5:35 PM
>>To: 'libbysales' <libbysales at austin.rr.com>, Premium-Rx at mailman.qth.net
>>Subject: Re: [Premium-Rx] Watkins Johnson  rack speaker
>>
>>Could it be an RF Distribution Amp?
>>
>>Ed Tanton
>>
>>website: http://www.n4xy.com
>>
>>All emails <IN> & <OUT> checked by
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>>
>>--------------------------------------------------
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>>
>>-----Original Message-----
>>From: premium-rx-bounces at mailman.qth.net
>>[mailto:premium-rx-bounces at mailman.qth.net] On Behalf Of libbysales
>>Sent: Sunday, October 02, 2011 4:55 PM
>>To: Premium-Rx at mailman.qth.net
>>Subject: [Premium-Rx] Watkins Johnson rack speaker
>>
>>Readers:  at Belton I picked up a Watkins Johnson  rack panel 120/240 Vac
>>powered, 8 'channel' audio input, with selector switch vol control nice 
>>wide
>>oval speaker..  anyone have any inst book and do we know what sort of
>>impedance these inputs are,  the inputs are BNC connectors that I find odd
>>for Audio..  so I have just cleaned it up a bit and thought I would ask 
>>the
>>greater knowledge pool before actual inputting anything ..
>>
>>regards:  mac/mc  w5mc
>>
>>______________________________________________________________
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>
>
> -Scott Schappert
>
> (C) 949.378.6675