| Year | 1955 |
| Date | 24-Feb |
| Volume | 112 |
| Issue | 2,805 |
| Page | 218 |
| Category | In the Workshop |
| Part | |
| Title | Low Voltage Electric Motors |
| Author | Duplex |
| Notes | A rotary transformer of English manufacturer, shunt wound motor, American-made rotary transformer, internal connections, modified connections, low-voltage Magslip, for 230 volts a.c., small series wound blower |