[R-390] R-390 "B" model

[Jim Miller]

Maybe there wasn't really a 390B, since the report says:

2.6 Phase F: Delivery of Models

In accordance with the terms of the contract, 2 "B" model R-390 receiver 
Item 5) and one "A" model R-390 receiver (part of Item 3) were shipped 
February 24th. The two "B" models were actually two of the receivers 
supplied by Signal Corps for use on this job, unmodified. On March 10th 
another "A model R-390 (rest of Item 3) was shipped. In September the "A" 
model R-391 (Item 4) and the "B" model R-391 (Item 6) were delivered.

----- Original Message ----- 
From: "Roy Morgan" <roy.morgan at nist.gov>
To: "James A. (Andy) Moorer" <jamminpower at earthlink.net>; 
<r-390 at mailman.qth.net>
Sent: Monday, June 06, 2005 10:47 AM
Subject: Re: [R-390] R-390 "B" model


> At 09:50 PM 6/5/2005, James A. (Andy) Moorer wrote:
>>Has anyone actually seen one of these? Did they ever build any?
>
> Based solely on the test of the "Cost Reduction Report", and on the 
> assumption that Collins delivered what the contract called for, I think 
> they made one and only one "B Model", and that it never went into 
> production.
>
> Roy
>
>
> - Roy Morgan, K1LKY since 1959 - Keep 'em Glowing!
> 7130 Panorama Drive, Derwood MD 20855
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> roy.morgan at nist.gov --
>
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