The term step-down transformer is identified in base64 scheme by the sequence c3RlcC1kb3duIHRyYW5zZm9ybWVy, while the MD5 signature is equal to 8ccf428aeb7eb5aa3d29a0e34a0bdb2d. The ASCII encoding of step-down transformer in hexadecimal notation is 737465702d646f776e207472616e73666f726d6572.