[SignalOne] Re: CX7A

[kiyoinc at attglobal.net]

Fred wrote:

> No change in the number of CX7s or MS1030s.  Still at 102 and 35 
> respectively.
> Another CX11A has turned up in Northern Italy making the total count 27.
> Some activity on the MS1030C and MS1030CI, IC-781 conversions, however.
> Total number of CIs is now at 5 and the total of the C model is now at 3 
> with another radio surfacing recently.  Not much info on this rig but it 
> does exist.
> I was quite fortunate to be able to purchase Ora Smith's MS1030C 
> conversion rig.  It survived shipping and is now in my collection.
> 
> 73 de
> K5OG
> Fred
> www.k5og.com

Hello Fred,

ah6gi/4 here. A clarification on my CX7A.   I've got it working EXCEPT 
for the power amp.  This is the one that has the 4CX350F.  I have the 
socket, BE block, and heatsink for converting it back to the 8072.

I just haven't completed the work.

Both PTOs/receivers work fine.  The passband tuning seems OK.

The keyer works and I can hear myself on SSB and CW but the power amp is 
dead.  The transmit signals are very weak.

I was appalled at how hacked-up the power supply board looked but 0YVA 
explained that was normal.

Normal?

"Yes, normal.  Do yourself a favor and find a B power supply board."

Oh no, not another project.

My radio has an extra heat sink on the back for a low voltage regulator.

It has harness hanging out the back which I think might be for an 
external powersupply for the 4CS350F.

I have not worked on the CX7A for a couple years but I do listen now and 
then.  I've compared it to my 75S-1, IC-720A, etc. and it works fine as 
a receiver.

I have a very noisy place in the city, I'm about 2 miles south of the 
Pentagon in Alexandria.

de ah6gi/4