[R-390] What's in the window?

[Cecil Acuff]

Mine only shows the Rippel drivel as well...

What I see is what's there...Never had a problem before...

Cecil
----- Original Message ----- 
From: "Jerry Stern" <jsternmd at att.net>
To: "'rbethman'" <rbethman at comcast.net>; "'R-390-List'" 
<R-390 at mailman.qth.net>
Sent: Friday, November 19, 2010 8:59 AM
Subject: Re: [R-390] What's in the window?


> VERY WEIRD.. When I view this auction on Ebay, the description after:
>
>> While an overhaul such as this goes far beyond the norm, this receiver
>> is also far beyond the norm.
>>
>
> The entire text on Classified Top Secret..... down to the Hi-Fi speaker
> description is missing.  In its place is the cut and paste history quote
> from Chuck Ripple.
>
>
> I have watched this auction since it first appeared and I never could make
> out what the rest of you were talking about.
>
> Is it just me??
>
> 73 Jerry
> K1JOS
>
>
> -----Original Message-----
> From: r-390-bounces at mailman.qth.net [mailto:r-390-bounces at mailman.qth.net]
> On Behalf Of rbethman
> Sent: Friday, November 19, 2010 9:13 AM
> To: R-390-List
> Subject: Re: [R-390] What's in the window?
>
> *All,
>
> *Here is a "copy of the extensive info":  (The area is bounded by ** at
> the beginning and ** at the end.)
>
> Quite clearly---> ** aftermarket 8 ohm audio stagenestled in the space
> next to the PTO**
>
> <http://cgi.ebay.com/Late-model-EAC-Collins-R-390A-R390A-R-390-/280589662946
> ?pt=LH_DefaultDomain_0&hash=item4154727ae2>
>
> I find all the totally off the wall "answers" ludicrous.  YMMV
>
> Bob - N0DGN
>
>> Thisreceiver, EAC Serial #2844, is apparentlyone of the latest ones,
>> as shown by the October 1967 date stamp in the photos.  It  has the
>> latest updates, including the IF module filter trimmers and the
>> desirable Cosmos PTO with a wide end point adjustment.
>>
>> It is typical mil-spec, usingmodular construction, coil forms
>> impregnated with Araldit, and teflon wire insulation. As shown in the
>> photos, the engraved front panel and original knobs and meters appear
>> practically new.   The gearing is tight, yet free, showing little, if
>> any wear. All controls are smooth and effective, and all filters and
>> bands function as they should.  This late model  receiver is a hot
>> performer, perhaps owing to the extra care taken in its overhaul.
>>
>> For example, not only were weak tubes replaced, but also low noise JAN
>> tubes were installed in the RF, mixer, and first IF. Alignment was
>> done a second timeafter a month's burn-in.
>>
>> In addition to the usual cleaning, lubing, and shaft alignment, tuning
>> lightness and smoothness were further enhanced by deburring and mesh
>> adjustmentof right angle display drive gear teeth, and resetting the
>> typically over-stiff anti-backlash spring tension in the KC shaft
>> drive gear. Meters were disassembled to adjust movement bearings often
>> overtightened at the factory.  Noise was reduced and signal input
>> increased by using a toroidal balunto get proper antenna balance and
>> correct match to the receiver's balanced 150 ohms,  instead of the
>> typical practice of feeding one side with 50 ohms through a nice
>> looking adapter.
>>
>> For longer tube life, two CL 80 thermistors were added to control
>> filament stressing inrush. A 44 ohm resistor ballast was installed to
>> save unnecessary wear on the3TF7 ballast tube, (which is also
>> included). After cleaning and mechanical alignment the controls, gears
>> and slug racks were lubricated with Bel Ray synthetic aviation oil
>> (some single malt Scotches cost less)
>>
>> While an overhaul such as this goes far beyond the norm, this receiver
>> is also far beyond the norm.
>>
>> Classified Top Secret until 1967, the R-390A is considered by some to
>> still be the best HF receiver ever designed.  Stories are told that
>> R390A's are still in use by the NSA, where senior operators far prefer
>> their quietness over modern, mega-dollar receivers from Harris, Racal
>> and Watkins-Johnsonwith their noisy synthesizers and digital filters.
>>
>> New R-390A receivers built in 1968 (the year following this one) were
>> briefly sold to the public for $1700, which would equal $11,000 today.
>>
>> <Included in the sale are are the ballast tube, all 3 covers, and the
>> antenna matching toroid.In addition, a compact HiFi speaker is
>> included to go with the ** aftermarket 8 ohm audio stagenestled in the
>> space next to the PTO**. (shown in the photos).>
>>
>> Shipping includes professional packing and insurance.    Fedex ground
>> seems to have the best track record,  but I'm open to suggestions.
>> Local pick up is preferred.  As with all electronics, no returns.
>> Ships to USA only.
>>
>
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