[CW] ITT MACKAY 3010C Manual

[Richard Knoppow]

    Found it At BAMA. I had looked there several times but 
somehow missed it. Found when I downloaded it I already had it. 
Getting old perhaps.
<https://bama.edebris.com/manuals/rca/ar8516/>

    It doesn't seem at first glance to be significantly different 
than the R6A but uses different tubes. Same spec for image 
rejection at 30 mhz, only 30 db. Not very good. This would be 
typical for a receiver with a single RF and a 455Khz IF but not 
for a double RF or higher IF. Makes you wonder.

On 5/22/2022 7:56 PM, Richard Knoppow wrote:
>     FWIW, there seem to be three receivers of about the same era, 
> all made for ship board use or at least marine radio use. They are:
>   The RCA CRM R6A, the Marconi Atalanta, and the MacKay 3010C.
>      They are of slightly different vintage but pretty close.
>      The most advanced seems to be the 3010C. All appear to be 
> double or double and triple conversion. Curiously, the image 
> rejection for the R6A is the poorest and is less than the 
> rejection of the AR-88. It makes me wonder if there is not a 
> misprint in the instruction manual.
>    There is also another version of the R6A designed for both AC 
> and DC supplies, evidently for shipboard use. I can't remember 
> its type number except its an AR something and have not found an 
> instruction book for it. Evidently it has another tube.
>     I am curious about these receivers. Have never used one and 
> not sure I've ever seen one. I am sure there are members of this 
> list who are very familiar with them and would like to know about 
> any comments, experiences, etc.
> 
> 
> 

-- 
Richard Knoppow
1oldlens1 at ix.netcom.com
WB6KBL