[R-390] R-390A mounting position

[Bob Camp]

Hi

I think you would get around the weight on the back of the radio 
problem with a 20 degree tilt. You probably will still have to need to 
fiddle the racks a bit to make it work.

	Take Care!

		Bob Camp



On Apr 20, 2004, at 8:45 PM, Dennis L. Wade wrote:

> I can certainly understand the physics involved with
> running it at a 45 deg tilt.
>
> But, I've been considering a rack style console that
> would hold a '390A in the lowest (desktop level)
> position.  If the front panel were perpendicular to
> the desktop, one has to crouch a bit to view the panel
> straight on.  A slight tilt, no more that 20 deg I
> would guess, is plenty to bring it so the plane of the
> panel is directly facing the operator.
>
> Does this much less severe angle pose any problems in
> anyones mind?
>
>                              Dennis
>
>
> --- Original Message ---
> From: Bob Camp <ham@cq.nu>
> To: "D. ball" <ke1mb@hotmail.com>
> CC: R-390@mailman.qth.net
> Subject: Re: [R-390] R-390A mounting position
>
>> Hi
>>
>> Physically doing an inclined mount on a 390 may be
> harder than it=20
>> looks. The radio really is not set up to hang by it's
> face plate. If=20
>> you take a look at the "standard" cabinets they go to
> great lengths to=20=
>>
>> support the radio along the bottom edge of the frame.
> In order to keep=20=
>>
>> things right you would need to support both the back
> of the radio and=20
>> the bottom of the radio. Not easy ....
>>
>> That of course assumes we are talking about a 45
> degree tip back. If=20
>> you are tipping it 45 degrees forward then things are
> even more=20
>> difficult.
>>
>> I have a couple of R-390's that I would not trust
> running at a 45=20
>> degree angle. The springs on the slug racks do not
> have enough "pull"=20
>> to keep everything running smoothly when the racks
> are at a significant=20=
>>
>> angle. They tend to hang up rather than follow the
> magic cams. You=20
>> probably could re-spring the radio with stiffer
> springs but then the=20
>> tuning knobs would be even harder to turn.  Since the
> radio stays at=20
>> the tune point due to friction you could get things a
> bit crazy this=20
>> way ....
>>
>> Bottom line - you would need a pretty good mount
> *and* a maybe one=20
>> radio in four to make it work like a R-390 should.
>>
>> 	Take Care!
>>
>> 		Bob Camp
>> 		KB8TQ
>>
>>
>>
>> On Apr 20, 2004, at 7:47 AM, D. ball wrote:
>>
>>> I want to mount my 390 in a 45 degree position in a
> homemade rack box.=20=
>>
>>> Does anyone for see any problems? I use the radio
> nightly so it does=20=
>>
>>> get used.
>>>
>>> thanks
>>>
>>> joe
>>>
>>>
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> ---------------
> Dennis Wade
> KG6ZI Carmichael, CA
>
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