It is imperative that the total resistance 01 the cable connecting the eliminator "A" and " A *. terminals to the battery terminals be. 042 ohms or 1888

IO "C" type chassis B- is grounded and condenser and choke are omitted. THE APPROVED MALLORY - ELKON "B" ELIMINATOR FOR LEADING AUTO RADIO RECEIVERS

THE CABLE for the new Mallory - Elkon "B" Eliminator consists of two wires within a braided metal covering. The red wire of this cable is positive " A, " and the green wire is negative " A. " Positive and negative "A" battery lugs are provided on the battery end of this cable (see illustration at right for method of connecting to battery). The braided metal strap at battery end should be screwed into the harness lug which is connected to the grounded post of storage battery. The other end of the cable should be attached to the "A" terminal screws on the terminal board of the eliminator, and proper polarity of these terminals must be observed, red to A + and green to A- Connect braided metal strap to one of Eliminator lid screws.

THE TERMINAL MARKED "R" on the terminal board is for the operation of the relay which is contained in the eliminator housing, and this connection is made as follows:

1. Ascertain the " hot A " terminal on the terminal board of your loud speaker by turning set switch on and connecting an ordinary automobile dash lamp in series between the frame

of the car or any grounded point and the'hot A " terminal of the speaker. There are four or more terminals on the terminal board of your speaker and the one which permits this test lamp to light will be the " hot A " terminal. (Permanent magnet type speakers having no terminals, require that relay wire be connected to load side of set switch, either in control-head or in set.) Turn set switch off while test-lamp is still connected, making sure lamp turns off with switch.

2. Attach one end of the special relay connector wire to the hot A " terminal on the loud speaker terminal board and connect the other end to the "R" terminal on the eliminator terminal board. Your receiver is now ready to operate. To place both the receiver and the eliminator in operation, it is necessary to turn on the switch which

operates the receiver. An automatic switch device is incorporated in the eliminator which turns the eliminator on when the receiver is turned on and turns it off when the receiver is turned off. From 30 to 60 seconds may be required before a signal is heard from the loud speaker, this being the time required by various types of tubes to reach proper operating heat.

5. CONTINUITY AND SERVICE TEST. This test is to be made with the Elkonode removed from the eliminator. It is assumed that before these tests are made the eliminator will be examined for poorly soldered or broken connections.