[ARC5] Questions for all - More info

[Mike Morrow]

The junction box at the back of the rack has an 8-pin connector for each receiver, at the top of the junction box.  This connector goes to the *remote* control box for that receiver.  Assuming that your rack and receivers are still in original configuration, and you are applying power using the normal rack 28vdc connector, you will need a jumper from pin 6 to pin 1 on that 8-pin rack connector when the *local* control adapter is used on the receiver.

Also...the AF output impedance of all ARA receivers is low, about 600 ohms.  The SCR-274-N "-B" version receivers may be wired for either high or low AF output impedance.  Other than that, an ARA receiver is electrically identical to the SCR-274-N equivalent.

Mike / KK5F

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I responded earlier:

>Yes, any ARA, SCR-274-N, AN/ARC-5 receiver may be used in any receiver rack from those three systems.
>
>Yes, the receiver local control adapters may be used regardless of which rack is being used.  These receivers were *always* used in a rack, so any accessory has to be usable to a receiver in a rack.
>
>At the wikipedia article on the "ARC-5" you will find links to maintenance manuals, plus some background on them.
>
>Mike / KK5F
>
>
>>. My question is, will all of the Command Set Receivers work in the 
>>ARC-5 receiver rack mount? The reason I am asking is I have a set of 2 
>>SCR-274-x receivers in a double rack, and a beautiful little ARA BCB 
>>receiver I picked up for a song ($45) off the Bay. There were only 2 
>>that bid on it and the other quit on $43.50. I have that set up in an 
>>ARC-5 single mount. Another question is when they are in the rack, can 
>>the local controls on the front of the receiver be used or do I have to 
>>use the control box? Seems there is always a question bouncing in my 
>>head. 73's ,,,,Joel  KB0FPT