[R-390] Nick's awesome 1970 Navy tech ref pdf

[Larry H]

Hi all,  When I was helping a fellow 390A enthusiast, I found a problem in
the 1970 Navy tech ref manual schematics Nick put on his website in Oct,
2021.  It's in the 1st mixer section (and therefore, also on page 1 of my
schematic PDF that is also on his website).  The error is that there are
two C280's on the schematic right next to each other.  The one on the left
(that goes to gnd) is correct.  The one to the right should not be there as
it blocks the mixer plate voltage from getting to the inductor (Z213-1) and
then to the plate.  I will send him a corrected copy and let you know when
it is out on his website.

Regards, Larry

On Thu, Nov 4, 2021 at 5:30 PM Larry H <larry41gm at gmail.com> wrote:

> Nick, Thank  you very much.
>
> Regards, Larry
>
> On Thu, Nov 4, 2021 at 9:01 AM Nick England <navy.radio at gmail.com> wrote:
>
>> Larry's file is now posted at
>> https://www.navy-radio.com/manuals/r390a-long-7004-schems-ljh.pdf
>>
>> Nick England K4NYW
>> www.navy-radio.com
>>
>>
>> On Thu, Nov 4, 2021 at 2:05 AM Larry H <larry41gm at gmail.com> wrote:
>>
>>> Hi all.  Nick said he'd put this pdf on his website, so it will be
>>> available to all when he does.  I'll let you know when it's  there.
>>>
>>> Regards, Larry
>>>
>>> On Tue, Nov 2, 2021 at 11:28 PM Larry H <larry41gm at gmail.com> wrote:
>>>
>>> > I liked the schematic scans that Nick did so well, that I extracted
>>> the 6
>>> > schematic pages and 4 other extra wide pages and put them in a 10 page
>>> > pdf.  The content is as follows: pages 1 to 6 are the complete wide
>>> > schematics (in the correct order), 7 and 8 are the filament and heater
>>> > wiring and the chassis harness,  and 9 and 10 are the tuning system and
>>> > gear train.  I've not seen these pages so clear when you zoom in on
>>> them.
>>> > Try it on the schematics and the gear train (so easy to see).  You'll
>>> love
>>> > it.
>>> >
>>> > I corrected the schematic on page 3, the 2nd crystal oscillator.  It
>>> was
>>> > missing the input to the oscillator grid from the crystal selection
>>> switch.
>>> >
>>> > I added about a half  inch of schematic to page 5 on the far right end
>>> to
>>> > complete the circuitry for the AGC function.  Sorry, it could be
>>> aligned a
>>> > little better.
>>> >
>>> > I reordered 2 of the pages in the schematic section.  They are now in
>>> the
>>> > right order.
>>> >
>>> > I don't have a public place to put them at the moment, so if you'd
>>> like a
>>> > copy, let me know.  It's under 4 MB in size.  It's really nice for
>>> viewing
>>> > online, and I think for printing but have not tried that yet.
>>> >
>>> > Regards, Larry
>>> >
>>> ______________________________________________________________
>>> R-390 mailing list
>>> Home: http://mailman.qth.net/mailman/listinfo/r-390
>>> Help: http://mailman.qth.net/mmfaq.htm
>>> Post: mailto:R-390 at mailman.qth.net
>>>
>>> This list hosted by: http://www.qsl.net
>>> Please help support this email list: http://www.qsl.net/donate.html
>>>
>>