Thinner wire allows more L per unit length, so the RFC takes up less
space, The reason that one can use thinner rather than thicker wire
for a single-layer RFC is that since each turn is in contact with
cooling air, the current capacity is increased. For example, in HV RFC
service, #22 Cu will carry 7A in SSB and CW service, whereas in xfmr
service, it might be used to carry c. 1A.
- Satisfactory types of insulation for HV RFC service are TFE or Type
WL 180ºC silicone varnish insulated wire -- such as is used by electric
motor rewinding shops.
On Aug 5, 2005, at 8:59 PM, Angelo Karabetsos wrote:
> Hello,
> I noticed that most plate chokes are wound with very thin gauge wire
> and varying diameter. I assume that would make it quite
> resistive/lossy. Some are split and mounted at right angles. Is there
> an advantage to using a thin gauge conductor other than space
> considerations?
> 73 VE3YN
>
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>
Richard L. Measures, AG6K, 805.386.3734. www.somis.org
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