[ARC5] Re volume control

[WA5CAB at cs.com]

Brian,

Junction boxes don't normally have any controls (I'm sure there must be an 
exceptions somewhere).  But all of the Command Set receiver control boxes have a 
pot for adjusting the output level of the receiver it is connected to.  It is 
actually across the RF gain line.  

Interphone amps usually (I can't think of an exception) have a level adjust 
pot, in most cases meant to be adjusted at installation.  So most are 
screwdriver adjust and some are not accessible without removing covers.

Interphone station boxes usually have an audio level adjust pot.  BC-606 is 
good example.

In a message dated 11/6/2006 4:26:53 AM Central Standard Time, 
brianclarke01 at optusnet.com.au writes: 
> My images of the J-22/ARC-5 in the 1944 NAVAER 08-5Q-95
> manual show no volume control. In fact, none of the J-boxes in this
> manual shows a volume control.
> 
> I have seen the Station boxes - but they were used with the SCR-522,
> as I recall. I have not seen them specified for use with ARC-5 or
> SCR-274-N. Perhaps there were off-the-book lashups that Americans
> could do because the parts were more readily available.

Robert Downs - Houston
<http://www.wa5cab.com> (Web Store)
MVPA 9480
<wa5cab at cs.com> (Primary email)
<wa5cab at houston.rr.com> (Backup email)