Re: Topband: transformers, teflon tubing

2017-04-28 Thread JC
Hi Piotr Yes, the WF load the tower and if you use the same tower to transmits, like I do, the voltage can me over 10KV. Also the transformer and resistor should stand 900 joules or 1 KW for one second, 100 for 10 seconds, you font want to burn the phasing system, and replaced it any time you

Re: Topband: transformers, teflon tubing

2017-04-28 Thread Mike Waters
73 material is conductive. The holes are lined with insulation to prevent the enamel coating on magnet wire from scraping off and shorting to the core as it is being pulled through the holes. Also, it is easier to get more turns in a winding using Teflon wire vs. some other types. The latest

Re: Topband: transformers, teflon tubing

2017-04-28 Thread Tim Shoppa
Enamel-insulated magnet wire easily gets knicked going around the sharp corners of a core. Although the core isn't very ohmically conductive, a knick at a corner is enough to affect the operation of the transformer. I think the old Clifton Laboratories page had a little section of measurements of

Re: Topband: transformers, teflon tubing

2017-04-28 Thread Augie "Gus" Hansen
Minimize inter-winding capacitance. 73, Gus Hansen KB0YH On 4/28/2017 7:14 AM, P H via Topband wrote: I've noticed use of teflon tubing in a Flag family transformers. Apart from low losses: is there another reason to use teflon coated wires? Regards Piotr, SP2BPD _ Topband

Topband: transformers, teflon tubing

2017-04-28 Thread P H via Topband
I've noticed use of teflon tubing in a Flag family transformers. Apart from low losses: is there another reason to use teflon coated wires? Regards Piotr, SP2BPD _ Topband Reflector Archives - http://www.contesting.com/_topband