K-37/K-38 RESISTOR & CAPACITOR SUBSTITUTION BOX (SOLDERING) KITS COMBO PACK
K-37:Educational kit complete with PC Board and detailed instruction book. Contains 24 different value resistors from 10 ohms to 1 meg. ELENCO K-37 Resistor Substitution Box (soldering kit)K-38 Educational kit complete with PC Board and detailed instruction book. Contains 24 different value capacitors from 100pF to 1uF. ELENCO K38 Capacitor Substitution Box (soldering kit)