[R-390] Fwd: Lost receive help....Resolved

[Dan Martin]

Ha! It was the gear train in my 390A that caused my non-ham wife to tell me I "left my radio machine on" when she noticed the dial light still illuminated in my dark shop one Sunday night years ago. I laughed at her innocent but accurate description and since then, every tube radio I have is affectionately referred to by her as a "radio machine". 

Literally true, in the case of the 390A!

Dan

Begin forwarded message:
> Subject: Re: [R-390] Lost receive help....Resolved
> Reply-To: "R. David Eagle" <kb8nnu at yahoo.com>
> 
> On a side note- My 4 year old loves working with me on this radio....he always says "look at all those gears, Daddy"!  I think he may have the bug....
> 
> Thanks again!
> DaveKB8NNU
> 
> 
>      From: Larry H <dinlarh at att.net>
> To: R. David Eagle <kb8nnu at yahoo.com>; 390 List <r-390 at mailman.qth.net> 
> Sent: Tuesday, April 12, 2016 12:24 AM
> Subject: Re: [R-390] Lost receive help....
> 
> Hi David,  Glad you're back in business, almost.  That typically means the first mixer and/or 17 mc 1st osc is not working.  Try swapping or replacing V202 and V207.  You might try wiggling them first.  Then if not them, it might be the 17 mc crystal.  Try wiggling it or cleaning the contacts.  It's inside the heater can HR202.  Also try wiggling the J221 mini bnc connector.  And then there's S208 in the rf deck - it provides osc power below 8 mc.
> I hope its an easy one.  Good luck.
> Regards, Larry
>      From: R. David Eagle via R-390 <r-390 at mailman.qth.net>
> To: 390 List <r-390 at mailman.qth.net> 
> Sent: Monday, April 11, 2016 8:56 PM
> Subject: [R-390] Lost receive help....
> 
> Well,  I am sure glad this group exists and I am have never been happier to finally get my 390a up and running.  This last week I finally powered the rig up and had one of the simapert replacement regulators fail...most likely due to a bad ground connection through the tube shield and it it wiped out half of my receive now.  I ordered the one that is on ebay as a drop in replacement to try that one and it works great...BUT I have noticed that I have lost the ability to receive  below 8 mhz or 9mhz.  I can hear WWV on 10mhz beautifully.
> Any ideas or help would be appreciated....again!
> Thanks,
> DaveKB8NNU
> 
> 
> ______________________________________________________________
> R-390 mailing list
> Home: http://mailman.qth.net/mailman/listinfo/r-390
> Help: http://mailman.qth.net/mmfaq.htm
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> 
> This list hLarry,You nailed it!  I removed and re-seated V202 and V207.....and we are back in business!  I hope they all turn out to be that easy.
> Now, if I can only figure out what is wrong with the VU meter, I may be in good shape....for now.  I got as far as checking for audio at the meter ...nuttin there.
> I fear I may have a bad meter....I wonder if they can be rebuilt?
> On a side note- My 4 year old loves working with me on this radio....he always says "look at all those gears, Daddy"!  I think he may have the bug....
> 
> Thanks again!
> DaveKB8NNU
> 
> 
>      From: Larry H <dinlarh at att.net>
> To: R. David Eagle <kb8nnu at yahoo.com>; 390 List <r-390 at mailman.qth.net> 
> Sent: Tuesday, April 12, 2016 12:24 AM
> Subject: Re: [R-390] Lost receive help....
> 
> Hi David,  Glad you're back in business, almost.  That typically means the first mixer and/or 17 mc 1st osc is not working.  Try swapping or replacing V202 and V207.  You might try wiggling them first.  Then if not them, it might be the 17 mc crystal.  Try wiggling it or cleaning the contacts.  It's inside the heater can HR202.  Also try wiggling the J221 mini bnc connector.  And then there's S208 in the rf deck - it provides osc power below 8 mc.
> I hope its an easy one.  Good luck.
> Regards, Larry
>      From: R. David Eagle via R-390 <r-390 at mailman.qth.net>
> To: 390 List <r-390 at mailman.qth.net> 
> Sent: Monday, April 11, 2016 8:56 PM
> Subject: [R-390] Lost receive help....
> 
> Well,  I am sure glad this group exists and I am have never been happier to finally get my 390a up and running.  This last week I finally powered the rig up and had one of the simapert replacement regulators fail...most likely due to a bad ground connection through the tube shield and it it wiped out half of my receive now.  I ordered the one that is on ebay as a drop in replacement to try that one and it works great...BUT I have noticed that I have lost the ability to receive  below 8 mhz or 9mhz.  I can hear WWV on 10mhz beautifully.
> Any ideas or help would be appreciated....again!
> Thanks,
> DaveKB8NNU
> 
> 
> ______________________________________________________________
> 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
> 
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> 
> 
> 
> 
> ______________________________________________________________
> R-390 mailing list
> Home: http://mailman.qth.net/mailman/listinfo/r-390
> Help: http://mailman.qth.net/mmfaq.htm
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> 
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