Date   
FG501 repair By um-gs@... · #170791 ·
DC503 repair (pwr supply and incorrect display) By um-gs@... · #170346 ·
DC503 repair (pwr supply and incorrect display) By um-gs@... · #170332 ·
DC503 repair (pwr supply and incorrect display) By um-gs@... · #170266 ·
A nice 1S1-related document By um-gs@... · #168298 ·
Sweep-switching mod for Type CA and 547 ? By um-gs@... · #167909 ·
TM50X transistors By um-gs@... · #167319 ·