 Picture : R.L. DRAKE Company |
 | AL-4 shielded directional loop antenna for .15 - 1.5 Mc for SW-4A and SPR-4 receivers. |
| The AL-4 Loop Antenna handle should be inserted into the hole on the top of the SW-4A or SPR-4 Receiver cabinet, and plug inserted into the jack on the top of the chassis. |
| For directional effect, disconnect any antenna connected to the antenna terminal at the rear of the chassis. |
| The AL-4 is very scarce, but you can do one yourself.... |
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Picture: JM CHERRY
Source: R.L. DRAKE Company
