Fostex 1dB step transformer attenuator. It uses a large single-turn transformer and a highly reliable rotary switch with low contact resistance. The input/output terminals are tight-fitting. The exterior has oxidation, square peeling, etc. (Tamura Eiji)
Maintenance information: 2024.5.8 operation confirmed
Accessories: none
Main specifications: 8Ω allowable input 100W (when using a network) attenuation 0 to 12 dB size W88 x H90 x D170 mm approx. 970 g