[R-390] Non_A

[Bob Camp]

Hi

Well as one wimp to another (my 390 not an A has not made it to the 
disassembly stage after several years ...) here's what I would do:

If you have an ohm meter handy the ballast tube is something you can 
ohm out. Either you have something less than 50 ohms between pins 2 and 
7 or the ballast tube is dead.

At this point you at least *know* weather it's the ballast tube or not. 
As long as you have the ohm meter out check the filaments of the VFO 
and BFO tubes. If either of them go out you have the exact same 
symptoms.

I'm working off of a 390A schematic so you might have to adapt that a 
little.

Now for the hard part ..... you still have to make the decision weather 
it's the ballast tube or not ....

I would go ahead and pull and clean the rf deck plug in coils. The risk 
of damage is small and cleaning the contacts can eliminate some really 
flaky problems that are a *true* pain to figure out. Cleaning the gears 
while the deck is easy to get at also makes sense at this point.

Past that it all depends on how brave you feel .....

David Medley is still around so there is a safety net if you run into 
something weird ....

I'd say go for it but I'm :


	Still A 390 not an A Wimp

		Bob Camp
		KB8TQ



On Jul 7, 2004, at 7:48 PM, Paul Staupe wrote:

> Folks,
>
> I have to agree with Les.... I'm glad the pot's been stirred.
> As a member of this list from the beginning, it's fun to look back at 
> the good 'ol days... Dr. Jerry, Noel, etc...  I can't imagine such a 
> wealth of knowledge being given to the unwashed masses for free!
>
> However, I've got a problem.  I have a non-A that has been sitting in 
> pieces in my living room for several months (I'm embarrassed to tell 
> you how many), supposedly ready to be cleaned up, but in reality due 
> to fear that I would screw something up.  The green gear was inserted 
> at the appropriate time, so that's not a problem, but it occurred to 
> me a few days ago that the symptoms... nothing on any band... might be 
> attributed to a failure of the ballast tube...
>
> Should I go through the standard cleaning procedure and risk damage to 
> the modules,  (and by the way, should I pull the coils out of the RF 
> module when I clean it?) or just put it back together with a  new 
> ballast tube and see if it works?
>
> Wimpily yours,
>
> Paul
> Kansas City
>
>
>
> Llgpt at aol.com wrote:
>
>> Well, I fully accept the shame or honor (depends on who you talk 
>> with) for getting the pot stirred.
>>
>> After months of nothing, I wanted to see just who the heck is still 
>> subscribed to the list.
>>
>> It turned out to be a reunion of sorts.........bunch of Barry's, Joe 
>> Foley, Bob's etc. , etc. Names out of the past. Lot's of knowledge on 
>> this list, we have all contributed over the years, some more on the 
>> technical side, some on the historical end, some with military 
>> stories, whispers from NSA types etc.
>>
>> The main thing is that most of the long time subscribers seem to 
>> enjoy sick humor at times. Yes, the weather had a bearing on my post. 
>> It had rained over 10" in June and July is attempting to surpass that 
>> mark.
>>
>> Just write it off that 'ol Les is a trouble maker and had time on his 
>> hands and you know the old saying about idle hands and the devil's 
>> workshop.....................it's true!!
>>
>> Les Locklear
>> Gulfport, Ms.
>>
>> "My luck is so bad that if I bought a cemetery,
>> people would stop dying."
>>
>> Ed Furgol
>>
>>
>>
>>
>> In a message dated 7/6/2004 9:18:48 PM Central Daylight Time, 
>> ba.williams at charter.net writes:
>> Here we go again....just when the list picks up from being almost 
>> totally
>> brain dead, another complaint about OUR list. Some of the members may
>> remember when this happened last time. We lost everybody and all 
>> humor.
>> Hell, everybody left in disgust. I stubbornly remained on the dead 
>> list,
>> mostly out of sadness to see the end of it. We sure had a great list 
>> going
>> for a few years too. I admit to being somewhat surprised that the 
>> traffic
>> has picked up again. Nothing like a dead horse riding into town to 
>> stir up a
>> good, old ruckus.
>>
>> Listen folks, I don't care if our traditional kind of humor rubs 
>> people the
>> wrong way. This has been our list for a long time and a couple of 
>> people are
>> going to have to rough it out like men or find somewhere else to lurk 
>> for
>> pouncing on everybody's fun. Go find another list and criticize them. 
>> Don't
>> take the time to learn the way of the list or give a bit of respect 
>> to those
>> who have made this list work all these years. Just prance right in 
>> and bitch
>> about things.
>>
>> For those who joined since the near castration of this list,  one 
>> complainer
>> started moaning about off topic humor. He got a couple of new buddies 
>> to
>> jump in too. Guess what...the old timers and vast knowledge base got 
>> the
>> hell out of town fast. The list collapsed. What happened to the 
>> complainers?
>> They didn't post a damned thing and they left too, right after they 
>> pissed
>> on the fun. The rest of us were left with bitter feelings about our 
>> list
>> disappearing overnight.
>>
>> Yep, this list gets off topic, way off topic. But, it gets on topic 
>> too. Way
>> on topic at times. You just have to take it with everything else if 
>> you plan
>> to stick around for what is offered.
>>
>> So, just to revive more dead horses in hopes of resusitation,
>>
>>
>> Cat piss
>> R-390A belt buckles
>> R-390A Zippo lighters
>> Ballast tubes
>> Cat piss
>> Tube shields
>> Gassy tubes and Zippo lighters
>> Simple Green
>> Cat piss
>> Gutting deer in the parking lot
>> Bristo or Bristol wrenches
>> Non A or just R-390
>> Cat piss
>> Homos (persons of the gay persuasion) okay, queers dammit
>> Hillary Clinton
>>
>>
>>
>>
>> The other other Barry (non-Hauser)
>> _______________________________________________
>> R-390 mailing list
>> R-390 at mailman.qth.net
>> http://mailman.qth.net/mailman/listinfo/r-390
>>
>>
>>
>
> _______________________________________________
> R-390 mailing list
> R-390 at mailman.qth.net
> http://mailman.qth.net/mailman/listinfo/r-390
>