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-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of David C.
Partridge
Sent: Friday, August 23, 2019 4:56 AM
To: [email protected]
Subject: Re: [TekScopes] Tek 576 Curve Tracer HV Transformer winding

David Rawding *used* to supply replacements for the 576 transformer, who I
believe was once (and may still be) a member of the group?

HtH
David
-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Miguel
Work
Sent: 23 August 2019 12:26
To: [email protected]
Subject: Re: [TekScopes] Tek 576 Curve Tracer HV Transformer winding


8070008






-----Mensaje original-----
De: [email protected] [mailto:[email protected]] En nombre de Craig
Sawyers Enviado el: viernes, 23 de agosto de 2019 9:13
Para: [email protected]
Asunto: Re: [TekScopes] Tek 576 Curve Tracer HV Transformer winding

Tektronix 567 EHT rewinding pictures from Craig






Tektronix 567 EHT rewinding pictures from Craig

Thanks for remembering where the pics were stored! I used a pot core former,
which was too high. So I cut a cheek off, shortened the tube and stuck the
cheek back on (superglue). I used a cheap manual winding machine from eBay,
and used Ulf's wind and retrace method to limit voltage from layer to layer.
Once finished I wax potted in an a mix of beeswax and candle wax (percentage
- can't remember.
Googled it), until bubbles stopped coming out, then gave it maybe another
half hour to soak. Then let it drip.

It has worked perfectly ever since. The 576 was free, so time and not much
money to get it working again was a bonus.

The multiple tags on the bobbin were a boon - because the 0.1mm wire breaks
a few times during winding, you just terminate it on a pin and continue
winding.

Craig













--
Dennis Tillman W7PF
TekScopes Moderator