[Johnson] Done For Tonight & for awhile

Thu Jul 2 13:14:10 EDT 2015

 Thanks Fern.
I was trying to check that last night by the Manual but I could not find the L7 coil for the 70 volts.. It does have plenty of Grid and tuned up just fine to 150 watts so I felt it must be ok..

-----Original Message-----
>From: Fern Rivard <crc at cyberlink.ca>
>Sent: Jul 2, 2015 9:29 AM
>To: richard <ramnaz at peoplepc.com>, johnson Valiant Help <Johnson at mailman.qth.net>
>Subject: Re: [Johnson] Done For Tonight & for awhile
>
>Sure sounds like no  bias voltage on the finals!   Fern
>
>
>-----Original Message----- 
>From: richard
>Sent: Thursday, July 02, 2015 10:20 AM
>To: johnson Valiant Help
>Subject: Re: [Johnson] Done For Tonight & for awhile
>
>Thanks Evan.
>The VFO turns nice & easy but  I did get a shock when I unplugged the 
>microphone plug last night & I noticed that if I don't push the plug in fast 
>& just go slow it will key up the transmitter tell it is in all the way..
>ONE other thing .. near the back by the 3 -6146 tubes there is a stack of 
>pink colored coils next to R-13 and that stack of coils I think were just 
>about to get hot as I saw some kind of trace of smoke starting to come from 
>them when I noticed the 6146 tube getting real blue  but I shut it down 
>pretty fast but I did  see the stack of coils wanting to start to smoke . So 
>I am not sure as to turning it back on and seeing if it does it again but 
>right now I am just leaving well enough alone tell I get more input as to 
>what to check for on the tube getting a blue dancing flame inside & then 
>another time a different tube got yellow /blue and both times I cought it 
>right away & shut down..
>
>-----Original Message-----
>>From: Evan Rolek <k9sqg at aol.com>
>>Sent: Jul 2, 2015 8:56 AM
>>To: ramnaz at peoplepc.com, Johnson at mailman.qth.net
>>Subject: Re: [Johnson] Done For Tonight & for awhile
>>
>>VFO coupler failure manifests itself in several possible ways.  Lack of VFO 
>>frequency change, sticky operation, "grinding" sound when rotating the VFO 
>>knob, etc.
>>
>>
>>
>>The only way I could envision the coupler causing "tube flashing" is if the 
>>coupler broke and prevented frequency change, and then one switched bands, 
>>"moved" the VFO frequency in-band when in fact the frequency wasn't 
>>actually changed, and then an attempt to tune up in a severely out of 
>>resonance condition causing excessive peak voltages in the output network.
>>
>>
>>
>>73,
>>
>>
>>
>>
>>Evan, K9SQG
>>
>>
>>
>>
>>-----Original Message-----
>>From: richard <ramnaz at peoplepc.com>
>>To: johnson Valiant Help <Johnson at mailman.qth.net>
>>Sent: Thu, Jul 2, 2015 11:35 am
>>Subject: Re: [Johnson] Done For Tonight & for awhile
>>
>>
>>Hello Roger.
>>Can't thank you enough for the reply.
>>If my problem is with the
>>Coupler how would I know as I have moved the transmitter around a lot on 
>>it's
>>side many times and then back sitting right side up .. I do have a new 
>>coupler
>>coming as I saw on e-bay a guy was making them and he talked about how they
>>break easy so I bought one...Is there a test to check the coupler and would 
>>that
>>cause the tubes to do as they are. I will try to see how to get to it as I 
>>can
>>take the side panel off the VFO Box & Look and then I will get back to you 
>>with
>>what I find but I am waiting for the new one to come..
>>Thanks Again Roger.
>>
>>Richard
>>
>>..................
>>
>>-----Original Message-----
>>>From: Rodger
>>Singley <WQ9E at btsnetworks.net>
>>>Sent: Jul 2, 2015 5:53 AM
>>>To:
>>ramnaz at peoplepc.com, Johnson at mailman.qth.net
>>>Subject: re: [Johnson] Done For
>>Tonight & for awhile
>>>
>>>Richard,
>>>
>>>The Valiant/SX-101 is a nice vintage
>>setup and it is what I used as a novice when I got my license in 1975 and
>>recreating this setup in 1994 is what gave me my start in collecting and
>>restoring vintage gear. I am currently traveling and I just saw your list
>>postings.  When I return home I will send you a short document of hints I 
>>have
>>put together for the Valiant, I own 2 Valiant transmitters and a Valiant II 
>>and
>>have repaired several for friends; I also own most of the other vintage 
>>models
>>from Johnson so I have spent a fair amount of time inside them :)  But one
>>caution before you go further is there is an insulating coupler used in the 
>>VFO
>>drive which is easily damaged and this usually happens when the Valiant is
>>turned upside down (with the case off) and the front panel flexes which 
>>will
>>break the coupler.  It fortunately can be repaired fairly easily but it is
>>unique with different input and output shaft sizes so it is best not to 
>>break it
>>in the first place.  The safe
>> st approach is to loosen the set screws in this
>>coupler before flipping the transmitter over, this allows it to slide on 
>>its
>>shaft rather than trying to hold the panel in place.
>>>
>>>I am reading email and
>>keeping up with the online class I am teaching via a little Asus 
>>transformer PC
>>which is very portable but not great for reading a lot of text so I haven't
>>closely read all of the postings but if you aren't sure the bias filter
>>capacitors have been replaced these should be done immediately.  Bias 
>>supply
>>issues will cause a number of faults and some can be very damaging to other
>>components.  If replacing bias filter capacitors be careful with capacitor
>>polarity since the bias supply capacitors are installed with the positive
>>terminal connected to ground-opposite of the more common negative to ground
>>orientation.
>>>
>>>More to follow along with an email attachment of Valiant
>>repair and operational tips once I return home to IL shortly.  I am 
>>currently in
>>the soggy Smoky Mountains which isn't great for hiking and 12 miles away 
>>there
>>is a big evacuation because of a CSX train derailment with toxic gas 
>>leaking.
>>Apparently CSX couldn't wait until the 4th to start their
>>explosions.
>>>
>>>Rodger WQ9E
>>>
>>>-------- Original Message --------
>>>> From:
>>richard <ramnaz at peoplepc.com>
>>>> Sent: Thursday, July 02, 2015 4:39 AM
>>>> To:
>>Johnson at mailman.qth.net
>>>> Subject: [Johnson] Done For Tonight & for awhile
>>>>
>>
>>>> Well as I said in my last note I was going to check the Bias & then 
>>>> check
>>it out on 40 meters and so I tuned up my antenna for 40 got the Valiant 
>>tuned up
>>and was doing some 123s and  1 of the 3--6146 started to get yellow / green 
>>and
>>so I shut it off and will wait for the man I bought it from to return from 
>>his
>>trip and then let him look at it and I wonder if anyone looked him up on 
>>QRZ his
>>call is NE7X Tom and he has a nice big set up he built. Well anyway I will 
>>call
>>it a night or morning as it is 2:30 am and there is nothing I can do with 
>>the
>>Transmitter doing as it is.
>>>> Maybe I will be back sometime with other
>>questions who knows..
>>>>      73
>>>>   Richard--- AKA--- KB7FDF--- FDF= Far
>>Distant Friend Just what all Hams Are..
>>>>
>>>> Richard Morris
>>>>
>>______________________________________________________________
>>>> Johnson
>>mailing list
>>>> Home: http://mailman.qth.net/mailman/listinfo/johnson
>>>> Help:
>>http://mailman.qth.net/mmfaq.htm
>>>> Post: mailto:Johnson at mailman.qth.net
>>>>
>>Message delivered to wq9e at btsnetworks.net
>>>>
>>>> This list hosted by:
>>http://www.qsl.net
>>>> Please help support this email list:
>>http://www.qsl.net/donate.html
>>>
>>>
>>>
>>
>>
>>Richard
>>Morris
>>______________________________________________________________
>>Johnson
>>mailing list
>>Home: http://mailman.qth.net/mailman/listinfo/johnson
>>Help:
>>http://mailman.qth.net/mmfaq.htm
>>Post: mailto:Johnson at mailman.qth.net
>>Message
>>delivered to k9sqg at aol.com
>>
>>This list hosted by: http://www.qsl.net
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>>help support this email list: http://www.qsl.net/donate.html
>>
>>
>
>
>Richard Morris
>______________________________________________________________
>Johnson mailing list
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>
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>

Richard Morris