K-37/K-38 RESISTOR & CAPACITOR SUBSTITUTION BOX (soldering) KITS COMBO PACK

One each of: ELENCO K-37 Resistor Substitution Box (soldering kit). Educational kit complete with PC Board and detailed instruction book. Contains 24 different value resistors from 10 ohms to 1 meg. ELENCO K-38 Capacitor Substitution Box (soldering kit). Educational kit complete with PC Board and detailed instruction book. Contains 24 different value capacitors from 100pF to 1uF.