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Show I HONEYCOMB COILS IN j CONVERTING RECEIVER I Third Regenerative Circuit Ar-I Ar-I rangement Is by Electrostatic Electro-static Coupling. In making a receiving set over Into a regenerative circuit, the IVForest honeycomb coils iwe very well adapted to a circuit arrangement as shown in Figure X. One coil is used as a primary, pri-mary, a second coil as a secondary, und a third as a tickler or plate inductance. in-ductance. When mounted in a set the secondary second-ary is placed in the center and the primary and tickler coils on the out- aide in such a manner that the coupling coup-ling between the primary and the secondary can be varied. The greatest advantage derived from the use of honeycomb coils is the and a circuit of the general arranS---ments of that shown in the diagram, an amateur can get excellent results. Any of the standard variometers on the market can Pe used for the grid and plate variometers "A" and "B." For those who wish to build a set of this type, a more detailed diagram of connections is s'town In Figure P. The antenna series condenser Is one of the ".1-plute size Au "A" buttery potentiometer is shown in the jtrcult for those who wish to use a soft detector de-tector tube. j |
