[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: More primary L needed
Original poster: "Gerry Reynolds" <gerryreynolds@xxxxxxxxxxxxx>
An alternative to using an off axis inductor to lower the primary
frequency is to increase the secondary frequency to match the primary
(or at least get it within tuning range)
Original poster: "Mike Tucknott" <michael.tucknott@xxxxxxxxxx>
I`v done the calc and I`v found that I need more primary to get the
system to tune.
OK so adding more primary C is not an option also there is no room
to add an extra
turn on to the primary, so I built a small inductor out of 14 turns
of thick insulated
copper wire about 3" dia in the centre is a soft iron core made up
of ferrous rods.
This plus the primary coil give just over the required inductance.
What are peoples thoughts on this ? method and construction.
Smokin in south Oxfordshire UK