Page 14 Advertisement 1

Radio Record, Volume V, Issue 33, 26 February 1932, Page 14

66 5) KROBLAK Heavy Duty RESISTORS Mountford Kroblak Resistors are made by winding 2 wire baving' 1 low temperature co-efficient of resistance, upon 9 porcelain tube with lugs at either end: The entire unit is then covered with a protective coating which hermetically seals the unit, thus preventing oxidization or deterioration. There is n0 danger to the wire from heating and cooling- aS the therma] expansion of the coating corresponds closely to that of the wire. Kroblaks may he run beyond their rated capacity. 10, 20, 35-Watt from 5/- each. TESTED Write for list of sizes. MOUNTFORD T5oo0J L: B. SCOTT LIMITED Manchester and Worcester Sts , Christchurch.