Description
The Todd Systems SD-14 SC is a heavy-duty vintage stepdown autotransformer designed for operating compatible 110–120V equipment from a 220–240V AC supply. The original manufacturer label identifies this unit as the SD-14 SC, with a maximum rating of 1500 VA. It accepts 220–240V at 50/60 Hz and provides 110–120V output, with a nominal output rating of 13.0A. The transformer is housed in a substantial blue metal enclosure with a baked-enamel finish. The rear incorporates an attached power cord and a North American-style receptacle for connecting compatible equipment. The unit was manufactured by Todd Systems of Yonkers, New York, U.S.A. Its specifications and model designation correspond with surviving listings for the SD-14 SC, which identify it as a 1500-watt/VA-class stepdown transformer with 220/240V input and 110/120V output. The transformer shows significant vintage cosmetic wear, including oxidation, paint loss, scratches and surface corrosion, particularly around the metal housing, mounting hardware and transformer cover. The original identification label remains remarkably legible. Functional operation has not been verified from the photographs.
Technical Specifications
| Specification | Details |
|---|---|
| Brand | Todd Systems |
| Model | SD-14 SC |
| Product Type | Stepdown Autotransformer |
| Maximum Capacity | 1500 VA |
| Input Voltage | 220–240V AC |
| Output Voltage | 110–120V AC |
| Frequency | 50/60 Hz |
| Nominal Output Current | 13.0A |
| Transformer Type | Autotransformer |
| Input Connection | Attached power cord |
| Output Connection | U.S.-style receptacle |
| Housing | Metal |
| Finish | Blue baked enamel |
| Manufacturer | Todd Systems |
| Location | Yonkers, New York, U.S.A. |
| Country of Manufacture | USA |
| Condition | Used / Vintage |
Condition
Fair Vintage Condition
I'd give the photographed unit approximately 6/10 cosmetic condition. Visible condition includes:
- Significant surface rust/oxidation
- Paint loss and scratches
- Corrosion around the metal housing
- Rust around mounting hardware
- Wear and discoloration on the transformer cover
- Minor dents/wear around the enclosure
- Aged power cable
- Aged output receptacle
- Original manufacturer label remains readable
- No obvious major structural break visible
What's Included
Included / Visible
- Todd Systems SD-14 SC autotransformer
- Attached power cord
- Integrated U.S.-style output receptacle
- Original metal housing
