Valve Voltage Stabilisers Tube aye Base Mean ae m stati Type suas | he ol Min. Max. Type Ref. ENGLISH ELECTRIC (Continued) Current Types (Continued) OB2WA/QS81211(SQ) 108 133 5 30 3.0 B7G 12 oc2 75 115 5 30 4.5 BIG 12 QS875/20 75 110 2 20 6.0 B7G 12 QS75/60 7 4117 5 60 5.0 B8B 7 Q895/10 95 110 2 10 5.0 BiG 17 QS108/45 108 120 5 45 5.0 B8B 5 QS150/15 150 170 2 15 5.0 B7G 17 QS150/45 150 =170 5 45 5.0 B8B 5 QS1200 150 180 5 15 5.0 B7G 21 QS1203(SQ) 150 180 2 15 4.5 BIG/F 12 QS1209/5651 85 115. 1 10 4.0 BIG 12 Q81212(SQ) 85 =: 1115 1 10 4.0 B7G 12 QS1213(SQ) 85 115 1 10 4.0 BIG/F 12 QS1215 90 115 1 40 12.0 B7G 12 75C1 78 = 115 2 60 8.0 B7G 21 150C4 150 185 5 30 5.0 B7G 12 HIVAC Current Types NT2 60 85 0.2 1.0 6 Wires NT2T 60 85 0.2 1.0 6 Wires V83R2 83 115 0.25 4.0 2 Wires V84R2 84 =:115 0.15 2.0 2 Wires V91R2 91 125 0.1 2.0 2 Wires V103R2 103-135 0.2 2.0 2 Wires V110R4 110 +170 0.5 4.0 2 Wires Vi15R4 115 155 0.15 4,0 2 Wires V116R2 116 150 0.12 2.0 2 Wires V139R1.9 139 =. 190 0.3 1.9 2 Wires V143R1.9 143-225 0.3 1.9 2 Wires Z82R7 82 110 0.25 7.0 1 Wires Z82R10 82 115 0.3 10.0 1 Wires Z82R15 82 =118 0.5 15.0 1 Wires Z83R4 83 110 0.25 4.0 1 Wires Z84R2 84 110 0.15 2.0 1 Wires Z91R2 91 118 0.1 2.0 1 Wires Z91R4 91 120 0.2 4.0 1 Wires Z9IR7 91 130 0.25 7.0 1 Wires Z91R10 91 135 0.25 10.0 1 Wires Z100R12 100 = 150 0.6 12.0 1 Wires Z103R2 103-130 0.2 2.0 1 Wires Z103R4 103 130 0.2 4.0 1 Wires Zi10R4 110 165 0.5 4.0 1 Wires Z115R4 115 150 0.15 4.0 1 Wires Z115R6 115 155 0.5 6.0 1 Wires Z116R2 116 9145 0.12 2.0 1 Wires Z139R19 139 =: 185 0.3 1.9 1 Wires Z143R19 143-220 0.3 1.9 i Wires L.T.T. Current Types G50/2G 50 90 0.3 3 3.5 Wires G55/1K 55 90 2 30 5.0 B7G 12 MULLARD Replacement Types ZZ1000 81 115 2 4 Flying leads 19