| Country of Origin | United States |
|---|---|
| Brand | Unbranded |
Check the listing for details. UNKNOWN MAKE AUDIO TRANSFORMER-1920s-PLATE TO PUSH-PULL GRIDS-TESTED OK. Condition: Used, Made in United States. Listed at 39.99 USD. The DC resistance of the primary is about 1.2 kOhms, and the full secondary reads about 8.15 kOhms. One grid to the center tap reads 3.55 kOhms and the other reads 4.60 kOhms.