Hashimoto Electric Co., Ltd. owns all the know-how of Sansui Transformers because the transfer of SANSUI transformers to Hashimoto in 1978 was a complete transfer including technical materials and design engineers. Specification Part NumberHW-40-10Rated Output Power (W)40W at 45HzPrimary Impedance10KΩSecondary Impedance4,8,16ΩSG tap 　ProvidedFrequency Range 10Hz～60kHz (+-1dB)Insertion Loss0.2dBPrimary Inductancew/ Applied CurrentBalance 250H Unbalance 150HMaximum Allowable DC CurrentBalance 180mA Unbalance 2.8mAOutline typeWE-85Size (AxBxH : refer to Drwg.)80 x 88 x H110 mm Screw Size (mm)M3Weight　2.4KgTubes to be matched with6V6, VT-62/801A, 6F6, 42, VT-25/10