Here you go ...
Air-Dux 195-2 coil assembly consists of these parts connected in series:
L1, strap coil for 10 m, 4 turns of 5/16" width strap, 1 1/2" diameter, 2 tpi
L2, tubing coil for 15 and 20 m, 4 turns of 1/4" o.d. tubing, 3 " diameter, 2
tpi. Tap for 15 m bandswitch posn 1 3/4 turns from L1 end.
L3, solid wire coil for remaining bands, 16 turns of no 8 wire, 3 1/4 "
diameter, 4 tpi. Tap for 40 m bandswitch posn 7 turns from L2 end.
73, Bob
WØYVA
http://www.isquare.com/personal_pages/ras-hardware.htm
On Jul 10, 2011, at 3:51 PM, HOWARDLYON@aol.com wrote:
> OK guys.... I need the wisdom of the ages... or is that aged? I dunno.
>
> Over twenty years in the making... well, that's when I got the bottle.
> Over the years I've collected the guts and small parts. It's time to put it
> all together.
>
> Basically adapting the parts that I have to the AA6GK design found on the
> Arkansas ARES/RACES site.
> _http://www.arkansas-aresraces.org/Equipment/Amplifiers/themanual.htm_
> (http://www.arkansas-aresraces.org/Equipment/Amplifiers/themanual.htm)
>
> A couple of questions:
>
> 1. Anybody have the specs on a PI-DUX 195-2 coil? Diameter, turns,
> length, AWG, etc?
>
> 2. The big question... his input net starts fine at 160m... 1820 puffs >>
> 10-15uH adjustable >> 1360 puffs on the output. Looks good as it breaks
> down to 1800p + 4.4uH = Z50 in : 9.7uH + 1360p = Z110 out.
>
> However, his 80m selection is more like 50 in and 60 out; 40m is 30 in and
> 50 out; 20m is 18 in and 30 out; according to his capacitor selection and
> the corresponding reactances and impedances
>
> I think he was winding coils to use whatever micas he had in stock. He
> has been unreachable via phone calls and e-mails to his mobile electronics
> business. Should I use his specs, or would I be better to scale the values
> more towards 50 in and 110 out?
>
> 3. Lastly, I have a 2H 1.6A monster choke for the HV PS. The tranny is
> 3600 rms @ 1 amp. About 5kV into the filter. Using 4 tubbies at 8uF/4kV in
> series / parallel for 8uF at 8kV with 2 100k/225W bleeders; the big choke;
> and then 14 390uF/450v lytics bridged with 14 50k 10Ws on the output.
>
> Ur thots on a resonating cap for the choke? The first bleeder current is
> about 25mA (about 125W)... might add an extra pair of 100k/100W to drop the
> heat; yea or nea?
>
> And, yes, I put new 150# casters on the rack.... the HV PS runs about 150
> pounds. ;-))
>
> Thanx for the help.
>
> Unca Billy
> N3TR
>
>
> Wm. H. Taylor
> General Contracting and Design
> 2249 Hickory Hill Rd
> Oxford, PA 19363
> 610-932-3762 h
> 484-643-3220 c
> n3tr@arrl.net
>
> Historical Restoration; Custom Stonework; Fireplaces
> Star Bolts; Structural repairs
>
> HIC Lic. # PA005831
> Nationwide 54-0-2659338
>
>
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