[SignalOne] Who works on CX7s?

Mon, 14 Jan 2002 14:14:26 -0800

Sounds like a great radio.  Loud hum can be caused by a failed voltage
regulator, eg Q4
which is mounted on the rear of the radio.

Dave AB7B

                    "Charles Hugg"                                                                                   
                    <[email protected]       To:     "Signal/One" <[email protected]>                     
                    et>                         cc:                                                                  
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                    signalone-admin@mailm                                                                            
                    an.qth.net                                                                                       

                    01/14/2002 10:03 AM                                                                              
                    Please respond to                                                                                
                    signalone                                                                                        

I have acquired a Signal/One. It is a  really nice CX7 that has been
converted to a CX7B, I think. The Front Panel label says CX7 and the SN is
#256. But it has the Signal/One CX7B Power Supply board installed and it
has
the Signal/One LED Readout installed. Both of these units have Signal/One
CX7B 1974 labels. It also has the Tube Screen Fuse installed on the back
and
a meter light installed above the S meter. I didn't get much paper work
with
this one. There is an  Info Sheet in the manual outlining the mods on CX7s
to make it them CX7As and there is a similar sheet from Signal/One covering
the mods to convert CX7s and CX7As  to CX7Bs, but I don't know if all of
this work has been done on this radio.
It seems to work. I plugged it in and turned it on. No smoke. I heard some
strong signals on 20 meters(good S-Meter readings), but there was what
sounded like an AC hum on the audio. It was a pretty loud hum, so I turned
the radio off. I think that it has set up for quite awhile. It probably
needs some caps replaced.  This transceiver is one of the cleanest radios
that I have seen. I looks almost new, especially on the inside.
The boards are shinny and have not been abused at all.. There is not really
much dust collected on the chassis.
I think that it might really be a keeper. It even has the amber and green
in
the readout like the CX11A.
Does anyone know of someone who will work on these radios? I could take it
too
them within Texas or surrounding States.
Thanks, Charlie Hugg. K5MBX

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