[Heath] Tutor Wanted

[James Owen]

Always check the power supply first! Put a light bulb in series with the AC and use about a 40-60 watt bulb then very little damage can be done if there is a short. Bulb should light fairly bright first time on and then drop in intensity as the capacitors charge.


 
James C. Owen, III K4CGY


________________________________
 From: "wittfa19 at earthlink.net" <wittfa19 at earthlink.net>
To: Dave Edwards <kd2e at comcast.net>; heath at puck.nether.net 
Sent: Sunday, September 8, 2013 1:50 PM
Subject: Re: [Heath] Tutor Wanted
 


Doug,

I recall the Shawnee has an internal power supply, if I were U I'd begin there.  Your first check should be the health of your electrolytics, especially if the rig hasn't been on in years.  If they are bad (shorted),  you could lose your pwr xfmr, a very expensive repair.   There's a gadget called an equivalent resistance meter that checks this, there are instructions around the internet for reforming old caps.  Then, if they're OK, measure the output of the B+, and take it from there.  But PLEASE, do not turn the unit on until all this checks out.  Best of luck.

Fred - KG6NYK


-----Original Message----- 
>From: Dave Edwards 
>Sent: Sep 7, 2013 7:45 AM 
>To: heath at puck.nether.net 
>Subject: Re: [Heath] Tutor Wanted 
>
>Doug.....
>
>I would suggest finding one symptom at a time, and posting it to the
    group. This way, you can hope to get 3 or more responses.....if they
    all agree, you probably have the answer. 
>If they are three different suggestions, you can try them all....and
    better learn what the line of thought is. 
>In addition, this gives others the chance to learn as well by
    reading along.  Some may be shy to throw their $.02 in, but are
    curious as to the progress of the repair. 
>
>This is a very powerful way of proceeding....you get some very smart
    troubleshooters all spinning their wheels to come to a successful
    conclusion. 
>
>I suggest starting with......
>1. Does anything light up?    (tubes, light bulbs etc.)  Perhaps a
    fuse is blown. If stuff lights up, then at least you have power, and
    a working filament transformer. 
>
>Use direct simple subject (SHAWNEE REPAIR) to make it easier for
    those to track the goings-ons.
>
>I've done this several times, and the bright folks on this group
    have helped me get a rig (and tube-type stereo amp) running again!
>
>......Dave
>
>
>
>
>
>
>On 9/6/2013 10:06 PM, Doug Davies wrote:
>
>Gentlemen:
>> 
>>I am looking for an individual who is technically savy and is familiar with the Heathkit HW-10 Shawnee to assist me in getting one of these working.  I am not a technician and have intermediate knowledge of electronics.  I do have basic test gear and I do have the HW-10 manual.  I would like to do this on line as a sort of tutor/student relationship.  The radio I have appears to be “all there” but hasn’t been turned on in years.  I tried it the other day and got no response from the rig.  I have access to a bunch of spare parts.  
>> 
>>If you would like to help me in this endeavour, please respond off list.  
>> 
>>Doug  VE7DRF    
>>
>>
>>_______________________________________________
Heath mailing list Heath at puck.nether.net https://puck.nether.net/mailman/listinfo/heath 
>
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