More SB620 coil data for the archive...

==================BEGIN FORWARDED MESSAGE==================
>Date: Sun, 08 Apr 2001 17:34:33 -0400
>From: Richard Blackman <richard.blackman@sympatico.ca>
>To: jshorney@inebraska.com
>Subject: Re: [HeathKit] SB-620 coils Part II

FOUND THIS IN MY TRASH BOX, GOOD LUCK / RICHARD /VA3NDO

myname wrote:

> Well it took exactly 12 minutes to get my first 2 requests for the rest of
> the dope for the SB-620 coils.  So -- here goes
>
> P/N 774 (must have been from earlier production):
>
> Range: ( uH) 2.60(max) to 5.0 (min)
> Preset:  3.5 ñ10% @ 7.9 MHz.
> "Q": minimum @ 7.9 MHz.: 85 measured with 2 1/4" leads to Q-meter
> Min. wire size: #30
> Wire type: SPTH S. Cel.
> No. of turns:  19 1/2
> % of total turns from start to tap:  37%
> Viewed from above (screw adj. end):
> Start: lug #3 @ 6 o'clock
> Tap: lug #2 @ 9 o'clock
> Finish: lug #1 @ 12 o'clock
> Dummy: lug #4 @ 3 o'clock
> Winding: Clockwise
> Staple lugs not to protrude inside coil form
> Form to withstand 1000 VAC terminals to core
> Must snap into 5/16" hole in 14 ga. aluminum
>
> P/N 807:
>
> Range: ( uH) 3.8 (max) to 7 (min)
> Preset:  4.8 ñ10% @ 7.9 MHz.
> "Q": minimum @ 7.9 MHz.: 70 measured with 2 1/4" leads to Q-meter
> Min. wire size: #38
> Wire type: S. Cel. Poly.
> No. of turns:  Universal 18 1/2
>  Turns from start to tap:  6 1/4
> Viewed from above (screw adj. end):
> Start: lug #3 @ 6 o'clock
> Tap: lug #2 @ 9 o'clock
> Finish: lug #1 @ 12 o'clock
> Dummy: lug #4 @ 3 o'clock
> Winding: Clockwise
> Staple lugs not to protrude inside coil form
> Form to withstand 1000 VAC terminals to core
> Must snap into 5/16" hole in 14 ga. aluminum
>
> and P/N 808:
>
> Range: ( uH) 27(max) to 56 (min)
> Preset:  44ñ10% @ 2.5 MHz.
> "Q": minimum @ 2.5 MHz 60 measured with 2 1/4" leads to Q-meter
> Min. wire size: #38
> Wire type: S. Cel. Poly.
> No. of turns:  Universal 57 1/2
>  Turns from start to tap:  16 1/4
> Viewed from above (screw adj. end):
> Start: lug #3 @ 6 o'clock
> Tap: lug #2 @ 9 o'clock
> Finish: lug #1 @ 12 o'clock
> Dummy: lug #4 @ 3 o'clock
> Winding: Clockwise
> Staple lugs not to protrude inside coil form
> Form to withstand 1000 VAC terminals to core
> Must snap into 5/16" hole in 14 ga. aluminum
>
> FWIW, the coil forms vary between 1 1/4" and 1 1/2" in length.
>
> You guys please keep the list informed of any breakthroughs.
>
> Tnx,
> Tom