[ARC5] Bc 458 TX questions

[WA5CAB at cs.com]

Andrew,

T53A (one winding of the coil under the can) is across C63.

For a connector to fit the 7-pin connector on the rear of any receiver or 
transmitter, you need to find a butchered or preferably stripped receiver 
chassis for any model receiver EXCEPT BC-453-B, BC-454-B, BC-455-B or BC-946-B 
(because the connectors in these receivers are (almost?) always missing the 
unused pins.  The three male connectors for the IF transformers will fit the 
AN/ARC-5 transmitters.  The three just behind the tuning capacitor will fit 
everything else.  Getting them out of the chassis is a bit of a bother but 
not that difficult.  I use a pair of the smallest Xcelite flush end-cutting 
wire cutters.  You will also need to acquire one mini-banana pin for each 
connector you modify, drill a hole exactly in the center of the connector, and 
install the 7th pin.  Several of us here have some of the pins.  Or last 
time I checked Pomona still made and sold several variants. Pay attention to 
how far from the wafer the pin actually starts as there are several types. 
Standard banana pins are too large.

Robert Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480

In a message dated 01/16/2016 09:35:43 AM Central Standard Time, 
arc5 at mailman.qth.net writes: 
> 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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