[ARC5] Bc 458 TX questions

[J Mcvey]

C63 tunes the MO circuit and is across a coil, so  continuity is normal.a full SCR-274 manual can be found here:http://bama.edebris.com/manuals/military/scr274/ 

I had the TX running on 440V plate V with good results until I got a proper dynoWhatever you get, be sure that it can deliver at least 200 ma or so. 


    On Saturday, January 16, 2016 10:32 AM, Andrew Kopke via ARC5 <arc5 at mailman.qth.net> wrote:
 

 Okay , You probably remember my query about the ball bearings  on  a capacitor a few weeks back

As it turns out, there are a total of three still in that cap and I wasn't able to insert anymore as of yet ,but the plates are not shorting at any pointt in it's travel open or closed. I applied some grease and everything's moving nicely .

Upon checking for shorts with a inexpensive multimeter , I found that C-63 ,the capacitor nearest the rear connector to have continuity across it , no matter if it's  open or closed . I do have a schematic ,but I can't tell if this is normal. I can't find any wires touching.

What does one use for a power connector if you can't find a MIL plug . I have an original military socket on mine ( a bonus) 

I've heard of folks making their own ,possibly with banana plugs?


And lastly , I want to build a supply and run the  power lower , Not so much at QRP levels ,but maybe around 10 watts,and  I have heard of some using some kind of industrial transformer found on EBAY . I can't remember what it was called , maybe a isolation transformer?


Sorry for  so many questions at once 

Thank you in advance 

Andrew Kopke  .

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