Show two hookups that tat will interest experimenter inthe diagram figurea Figure 1 the antenna coll coil may be n 0 single slide slid tuner euner or any anny other conductance wilh a few taps it Is not in inductive relation with the secondary coll coil coupling Is effected by means of the two variable condensers these may AN 2 OXY H J may be arranged so one dial will actuate both condensers be arranged so that one dial will a actuate C to both condensers but only those with In ingenuity gennity will care to make this arrangement A condenser and variable grid lenk are suggested for tile lie grid cIr circlet the secondary coll coil may be any standard inductance such ns as a 75 turn honeycomb coll coil or the he secondary of a standard neutro former the latter Is especially suitable since the variable condenser Is then lien already atta clied it if this Is done the primary of the neutro former would not be used ined regeneration Is effected by a honeycomb coll collor or rotor ball arranged in inductive relation to the he secondary coll coil as shown still another an other method would be to insert a varl ometer in the plate circuit to produce regeneration with the arrangement shown in figure 2 some of the stronger powered sint ions coil can be brought brough tIn in nicely on a loop no R F amplification Is used except that derived from the lie rege regenerative properties of the lie tube the loop should be a good sized olie oae with will 14 turns tapped at the fourth turn count 4 aw am S 4 ir tov i some strong e r powe red stations C can an De Broucht in on loop ing from center to this his top connect the negative filament return if a ground Is used connect at tills this point also if volume Is 13 insufficient connect antenna nt at inside terminal orld grid condenser and leak should be of 5 capacity ehg tuning condenser fur for tile the loop hah A capacity of A good low toss loss neter should be i used in tile the plate circuit or a tickler mat mav be uselin used ln connect connection io ll 11 with small email arl grid co coupling apling coll connee connected ted at point i market marked X new york sun |