Fw: [R-390]
Tom Norris
r390a at bellsouth.net
Sun Jun 20 18:34:35 EDT 2004
Before checking if the coils are blown, make sure the
slug racks move as they should. Sometimes one of the
clamps that hold the gears onto their shafts can break.
Think Hank Arney has the clamps if needed. Next
step is to see which bands it does not work on if the
slug racks are indeed moving. Crystals do go bad
every now and again. Most I have found that did not
receive on several bands either needed gear clamps
or a good alignment. The Chuck Rippel video will
painlessly step you through a complete alignment,
it goes into great detail and is a good investment if
you have not messed with these receivers before.
Tom NU4G
>
>At 05:47 PM 06/20/04, Lee Bahr wrote:
>>I went to the Arlington Ham Comm in Texas yesterday and bought my third
>>R-390A. It was a Motorola, serial # 1587. All meters are intact but the
>>chap who sold it to me for $250 said it does not work on all bands and he
>>didn't know what was wrong with it. He said he found it in a corporation's
>>disposable pile. Now I have 3 of them to restore! (The other two are EAS
>>units). The Motorola unit looks clean and the front panel is nice but not
>>perfect. All the covers are there.
>>
>>What would be the most logical reason for some bands not working? I guess
>>crystals would be suspect and maybe switch contacts, if nobody was screwing
>>slugs around in the unit. (I'll check to see if rack coil slugs are
>>moving).
>>
>>Also, what do you guys think of the latest Electric Radio's article (June,
>>2004) on improving R-390A audio? I'm thinking of trying this if I ever/when
>>get my radios up and running,
>>
>>I just ordered the two sets of Hi-Res videos on the R-390A as well as the
>>set for the SP-600JX but they have not arrived from Hi-Res as yet. My two
>>cap kits for my first two R390As have been sitting on the work bench for
>>weeks now. Maybe the videos will get me going!
>>
>>Lee, w0vt
>>Houston
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