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Re: Coil Winder -- New Coil :^)

Original poster: Steve Ward <steve.ward@xxxxxxxxx>


Just one suggestion, for your next victim, i would suggest using 28awg
instead of 24awg.  You really want the lower Fr in all cases (DRSSTC,

Will be waiting for some pics of your winder :-)

Steve Ward

On 4/23/05, Tesla list <tesla@xxxxxxxxxx> wrote:
> Original poster: Sparktron01@xxxxxxxxxxx
> I wound my first coil on my sem-auto winder last night.  It is 3.5"
> (3" nominal) PVC x 12.5" tall, wound with #28 wire.  Winder in close
> wind mode seemed to by "falling behind", so had to adjust takeup
> index frequency higher to allow traverse to follow wire more quickly.
> Including setup, winding and 5 coats of urethane it took < 2 hours,
> and results are great.  L= 16.1mH,  Fo no load 510kHz, with 1.5" x 8"
> oblate 390 kHz, Q is excellent on coil as well.
> Next customer (victim... :^D ) is a 6.625" OD x 18" long for SSTC,
> DRSSTC, OLTC research, to be close wound with #24, and epoxy coated.
> Can post pics later this weekend...
> Regards
> Dave Sharpe, TCBOR/HEAS
> Chesterfield, VA. USA