Output Valves 3 | iti ati . , Typical nr | nae FP agpen | ae | gees] moc] etait, | me Type Supply Volts RK Anode Grid Volts Amps Vous (2) (ron) (rae) Anode Screen Anode Screen Type | Ref. MULLARD Replacement Types PD500 (T) 7.3 0.3 25,000 _ ~ 30.0 ~ 1.60 BID 5 PL36 25.0 0.3 170 170 7,000 1,000 10.0 5.0 100 8.0 10 16 Current Types PL802 (P} 16.0 0.3 170 170 39 _ 6.0 3.0 30.0 6.5 BSA 65 PL508 (P) 17.0 0.3 190 190 _ 2, 500 _ 12.0 3.0 60.0 5.0 BSD 6 PL504 (P) 27.0 0.3 75 200 _ 7, 000. _ _ _ 440 30.0 B9D 1 PL509 (P) 40.0 0.3 160 160 - 7,000 550 = 330.0 7.0 1.4A 45.0 BOSD 7 TUNGSRAM Replacement Types PD500 (T) 7.3 0.3 25, 000 _ _ _ 30.0 _ 1.6 _ B9D 5 PL36 25.0 0.3 230 200 ~_ 7,000 1,500 11.0 5.0 100 16.0 10 16 Current Types PL9504 (P) 27.0 0.3 75 200 - 7,000 _ _ _ 440 30.0 BOD 1 PL509 (P) 40.0 0.3 160 160 _ 8, 000 550 = 40.0 9.0 1.44 45.0 BSD 7 Amplifier Triodes Heater Volts Capacitance (pF) Base Type Canent g Bm (mA) (2) (mA/V) Volts Amps Anode Grid Cek Cak Coa Type Ref. BRIMAR Replacement Types 6AM4 6.3 0.225 200 1.0 10.0 8, 700 9.8 4.4 0.16 2.4 B9A 27 Current Types 6ATS (DD) 6.3 0.3 250 3.0 1.0 58,000 1.2 2.3 i.t 2.1 B7G 7 6BQ7TA (DT) 6.3 0.4 150 2.0 9.0 6, 100 6.4 2.85 0.15 1.15 B9A 28 6C4 6.3 0.15 250 8.5 10.5 7, 700 2.2 1.8 1.3 1.6 B7G 3 6SL7?GT (DT) 6.3 0.3 250 2.0 2.3 44,000 1.6 2.15 0.9 3.5 10 3 6SN7GT (DT) 6.3 0.6 250 8.0 9.0 7, 700 2.6 2.6 0.8 4.1 10 3 1ZAT7 6060(SQ) } (DT) 6.3 0.37 250 2.0 10.0 10,000 5.5 2. 0.4 1.5 BOA 1 L2AU7 : 6067(SQ) i (DT) 6.3 0.3f 250 8.5 10.5 7, 700 2.2 1.6 0.5 1.5 B9A 1 12AX7 ) 6057(SQ) f (DT) 6.3 0.37 250 2.0 1.2 62,500 1.6 1.6 0.46 1.7 BOA 1 12BH7 (DT) 6.3 0.67 250 10.5 11.5 5, 500 3.1 3.0 0.8 2.4 B9A 1 13D8 (DT) 6.3 0.37 250 8.5 10.5 7, 700 2.2 1.6 0.5 1.5 B9A 1 5965 (DT) 6.3 0,45 150 _ 8.2 7,250 6.5 3.8 0.5 3.0 B9A 1 6080 (DT) 6.3 2.5 100 80.0 100 300 6.5 5.5 2.5 8.6 10 22 E88CC(SQ) (DT) 6.3 0.3 90 1.2 15.2 2, 650 12.5 3.3 0.18 1.4 B9A 28 EC90 6.3 0.15 250 8.5 10.5 7, 700 2.2 1.8 1.3 1.6 B7G 3 ECC83 (DT) 6.3 0.3f 250 ~2.0 1.2 62,500 1.6 1.6 0.3 1.7 BSA 1 ECC804 (DT) 6.3 0.3f 200 1.7 10.60 5, 300 3.4 2.5 2.1 2.5 B9A 28 ECC807 (DT) 6.3 0.3f 250 1.5 1.3 62,500 2.4 2.0 1.35 2.3 B9A 62 ECF804 (TP) 6.3 0.45 150 1.5 13.5 5, 300 7.2 2.5 1.5 1.8 B9A 15 PCE82 (T, BT) 10.0 0.3 150 4.9 10.0 4, 900 3.7 2.2 1.9 2.4 B9A 33 12AT6 (DD) 12.6 0.15 250 3.0 1.0 58,000 1.2 2.3 1.1 2.1 BI7G 7 128L7GT (DT) 12.6 0.15 250 2.0 2.3 44,000 1.6 2.15 0.9 3.5 10 3Amplifier Triodes Heater Voits Capacitance (pF) Base Anode tg gm Type cama) (82) (mA/V) m Volts Amps Anode Grid Cok Cok Coa Type Ref. MAZDA Current Types PC86 3.8 0.3 175 1.5 12.0 4, 850 14.0 3.6 0.2 2.0 BOA 50 PC88 3.8 0.3 160 1.25 12.5 4, 800 13.5 3.8 0.055 1.2 B9A 51 PC97 4.5 0,3 135 1.0 11.0 5, 000 13.0 3.2 0.21 0. 48 B7G 30 6/30L2 (DT) 6.3 0.3 200 7.7 10.0 5, 300 3.4 2.5 2.1 2.5 B9A 28 6F12 (P) 6.3 0.3 250 2.0 12.6 8, 000 9.4 _ _ _ BIG 8 6F23 (P) 6.3 0.3 170 1.9 12.6 4, 800 11.6 _ ~ _ BOA 3 6L12 (DT) 6.3 0,435 250 2.3 10.0 9, 700 5.9 3.0 1.2 1.5 BOA 28 6113 (DT) 6.3 0,3f 250 2.0 1.2 62,500 1.6 1.6 0.46 1.7 B9A 1 6PL12 (T, BT) 6.3 0,78 100 0 3.5 28,000 2.5 3.0 4.3 4.2 B9A 26 EBC 90 (DD) 6.3 0.3 250 3.0 1.0 58,000 1.2 2.3 1.1 2.1 B7G 7 ECC81 (DT) 6.3 0.3T 250 2.0 10.0 10,000 5.5 2.5 0.4 1.5 B9A 1 ECC82 (DT) 6.3 0.3T 250 8.5 10.5 7, 700 2.2 1.6 0.5 1.5 B9A 1 ECC83 (DT) 6.3 0.3T 250 2.0 1.2 62,500 1.6 1.6 0.3 1.7 B9A 1 ECC85 (DT) 6.3 0.4385 250 2.3 10.0 9, 700 5.9 3.0 0.18 1.5 B9A 28 ECC804 (DT) 6.3 0.3 200 7.7 10.0 5, 300 3.4 2.5 2.1 2.5 B9A 28 ECL80 (TP) 6.3 0.3 100 2.3 4.0 12,500 1.4 2.0 0.3 0.9 B9A 6 ECL8&2 (TP) 6.3 0.78 1006 0 3.5 28,000 2.5 3.0 4.3 4.2 B9A 26 ECL86 (TP) 6.3 0.66 250 1.9 1.2 62,000 1.6 2.3 2.5 1.4 B9A 52 30L1 (DT) 7.0 0.3 100 1.5 12.0 4, 000 6.0 2.3 0.5 1.1 B9A 18 30L15 (DT) 7.0 0.3 90 1.2 15.0 3, 100 9.0 3.1 _ _ BOA 18 PCC84 (DT) 7.0 0.3 90 1.5 12.0 4, 000 6.0 2.3 0.5 1.1 B9A 18 PCC 806 (DT) 7.2 0.3 75 0.75 15.0 2, 400 16.5 4.1,6.3 1.8,0.17 1.6,3.3 BOA 63 30L17 (DT) 7.2 0.3 75 0.75 15.0 2, 400 16.5 4.1,6.3 1.8,0.17 1.6,3.3 B9A 63 30F5 (P) 7.3 0.3 170 1.85 12.6 _ 11.0 _ _ _ B9A 3 30FL14 (TP) 7.4 0.3 100 3.0 14.0 3, 100 5.5 2.4 1.6 2.1 BOA 54 PCF808 (TP) 7.4 0.3 100 3.0 14.0 3, 100 5.5 2.4 1.6 2.1 B9A 54 PCC89 (DT) 7.5 0.3 90 1.2 15.0 2, 900 12.3 3.8,6.3 2.5,0.2 1.9,4.1 BOA 18 PCC189 (DT) 7.6 0.3 90 1.4 15.0 2, 500 12.5 3.5,6.0 1.7,0.18 1.9,1.9 B9A 28 PCF802 (TP) 9.0 0.3 200 2.0 3.5 20,000 3.5 2.4 _ 1.5 BOA 15 30FLI1 (T, BT) 9.4 0.3 200 7.7 10.0 5, 300 3.4 3.6 2.6 2.7 B9A 33 30FL12 (T, BT) 10.0 0.3 150 4.9 10.0 4, 900 3.7 2.2 1.9 2.4 B9A 33 PCL83 (TP) 12.6 0.3 250 8.5 10.5 7, 700 2.2 2.0 0.35 1.6 B9A 17 30PL1 (T, BT) 13.0 0.3 200 7.7 10.0 5, 300 3.4 2.6 2.0 2.4 B9A 17 PC L86 (TP) 13.6 0.3 230 -1.7 1.2 62,000 1.6 2.3 2.5 1.4 B9A 52 PCL84 (TP) 15.0 0.3 200 1.7 3.0 16,200 4.0 3.8 2.3 2.7 BOA 36 30PL12 (T, BT) 16.0 0.3 100 0 3.5 28,000 2.5 2.7 4.0 4.0 B9A 26 30PL13 (T, BT) 16.0 0,3 200 1.7 10.0 5, 300 3.4 2.1 1.9 2.3 B9A 26 30PL14 (T, BT) 16.0 0.3 200 1.7 10.0 5, 300 3.4 2.1 1.9 2.3 B9A 26 30PL15 (T, BT) 16.0 0,3 100 2.1 10.0 4, 200 4.3 2.0 1.8 2.3 B9A 42 PCL82 (TP) 16.0 0,3 100 0 3.5 28,000 2.5 2.7 4.0 4.0 BOA 26 PCL805/85 (TP) 18.0 0.3 100 0. 85 5.0 11,000 5.5 3.0 2.5 1.9 BOA 42 10PL12 (T, BT) 50.0 0,1 100 0 3.5 28,000 2.5 3.0 4.3 4.5 B9A 26 UCL82 (TP) 50.0 0,1 100 0 3.5 28,000 2.5 3.0 4.3 4.5 BOA 26 M.O. VALVE CO. Replacement Types L63 6.3 0.3 250 8.0 9.0 7, 700 2.6 3.8 3.2 4.1 10 2 Current Types DA100 6.0* 2.7 1,250 200 100 1, 410 3.9 15.8 10.8 15.7 special 4-pin A2521 6.3 0.3 250 _ 16.0 _ 15.0 3.5 0.06 1.6 BOA 46 A2599 6.3 0.3 250 16.0 -_ 15.0 3.5 0.7 1.1 B9A 47 A2688 6.3 0.37 200 _ 16.0 _ 15.0 2.7 0.2 1.1 B7G 9 A3343 6.3 0.4 250 1.0 10.0 2, 700 6.5 2.1 0.01 1.0 Disc seal A3394 6.3 0.3 250 9.5 10.0 2, 000 12.0 7.5 3.5 3.5 B9A 66 EF86/Z729 6.3 0,2 250 5.0 4.0 16,000 2.0 _ _ _ B9A 13 5842/417A 6.3 0.3 180 _ 25.0 _ 25.0 6.5 0.35 1.8 B9A _ DA42 7.5 1.2 1,000 _ 40.0 24,000 3.0 5.2 1.0 4.0 4-pin 10Amplifier Triodes Heater Volts Anode Capacitance (pF) Base Type Current 8) (may) Volts Amps Anode Grid (mA) Cgk Cak Cea Type Ref. MULLARD Replacement Types PC8&6i (DT) 3.8 0.3 175 1.5 12.0 4,850 14.0 3.6 0.2 2.0 B9A 50 PcEst (T) 3.8 0.3 160 1,25 12.5 4, 800 13.5 3.8 0.055 1.7 B9A 51 PC900** (T) 4.0 0.3 200 0.5 17.0 5, 000 14.5 3.3 0.08 0.35 BIG 33 PC9O7** (T) 4.5 0.3 135 1.0 11.0 5, 000 13.0 3.2 0. 25 0.5 B7G 30 E80C F(SQ) (TP) 6.3 0.33 100 1.2 14.0 3, 606 5.0 2.5 1.5 1.5 BOA 15 E88C (SQ) (T) 6.3 0.155 160 1.25 12.5 4, 800 13.5 3.8 0.055 1.7 BOA 51 EC86 (DT) 6.3. 0.15 100 1.25 8.5 4, 700 5.8 2.2 0.7 1.45 B8D 5 EC88 (T) 6.3 0.155 160 1,25 12.5 4, 800 13.5 3.8 0.055 1.7 B9A 51 EC91 (T) 6.3 0.3 250 1.5 10.0 12,000 7.5 5.3 0.2 3.8 BIG 22 ECC81) M8162 { (DT) 6.3 0.37 170 1.0 8.5 11,000 5.9 2.3 0.2 1.6 B9A 1 ECC83 MB137(SQ)} (DT) 6.3 0.37 250 2.0 1.2 62,500 1.6 1.6 0.46 1.7 BIA 1 ECC84 (DT) 6.3 0.34 90 1.5 12.0 4, 000 6.0 2.1,2.3 0.16,0.45 1.1,2.3 BIA 18 ECC85 (DT) 6.3 0.435 250 2.3 10.0 9, 700 5.9 3.0 0.18 1.5 B9A 28 ECC88 (DT) 6.3 0.33 90 1.2 15.0 2, 650 12.5 3.3 1.8 1.4 BIA 28 ECC 2000(SQ) (DT) 6.3 0.335 90 1.2 27.0 _ 16.5 6.5 0.18 1.5 B10B 2 ECH84 (TH) 6.3 0.3 50 0 3.0 13,500 3.7 3:0 _ 1.1 B9A 53 ECL80 (TP) 6.3 0.3 100 2.3 4.0 12,500 1.4 2.0 0.3 0.9 BOA 6 ECL82 (TP) 6.3 0.78 100 0 3.5 28,000 2.5 2.7 4.3 4.2 BIA 26 ECL83 (TP) 6.3 0.6 200 1.5 2.5 34,000 2.5 3.8 0,32 1.6 B9A 17 ECL86 (TP) 6.3 0.66 250 1.9 1.2 62,000 1.6 2.3 2.5 1.4 B9A 52 PCC84 (DT) 7.0 0.3 90 1.5 12.0 4, 000 6.0 2.1 0.16 1.2 B9A 18 PCC89 (DT) 7.2 0.3 90 1.2 15.0 2, 900 12:3 3.5 2.5 1.9 BOA 18 PCC189i (VM,DT) 7.6 0.3 90 1.4 15.0 2, 500 12.5 3.5 1.7 1.9 BOA 28 PCC85 (DT) 9.0 0.3 200 2.1 10.0 8, 300 5.8 0.003 0,18 1.5 B9A 28 PCL83 (TP) 12.6 0.8 250 8.5 10.5 7, 700 2.2 2.0 0.35 1.6 B9A 17 UCL83 (TP) 40.0 0.1 200 1.5 2.4 34,000 2.5 2.3 0,32 1.6 B9A 17 UCL82 (TP) 50.0 0.1 100 0 3.5 28,000 2.5 2.7 4,3 4.2 B9A 26 Current Types E88CC(SQ) _ _ EBBCC /OLSQ)t (DT) 6.3 0.3 90 1.0 15.0 12.5 3.3 1,18 1.4 B9A 28 ECC82 MB136(SQ)+ (DT) 6.3 0.3T 250 8.5 10.5 7, 700 2.2 1.6 0.5 1.5 BSA 1 PCF802 (TP) 9.0 0.3 200 2.0 3.5 20,000 3.5 2.4 _ 1.5 B9A 15 PCL86 (TP) 13.0 0.3 230 -1.7 1.2 62,000 1.6 2.3 2.5 1.4 B9A 52 PCL84. (TP) 15.0 0.3 200 1.7 3.0 16,200 4.0 4.0 2.5 2.7 B9A 36 PCL82 (TP) 16.0 0.3 100 0 3.5 28,000 2.5 2.7 4.0 4.0 B9A 26 PCL85 (TP) 18.0 0.3 100 0 10.0 9, 000 5.5 2.8 0.35 1.9 B9A 42 **R.F.triode {Frame grid 1.T.T. Replacement Types HL23 2.0* 0.05 150 2.4 1.5 1,2 27, 000 2.75 5.25 5.0 MO 1 3A/167M 6.3 0.45 150 1.5 40.0 47.0 1,000 11.0 2.5 4.0 B8B 6 TUNGSRAM Replacement Types PC86 3.8 0.3 175 1.5 12.0 14.0 4,850 3.6 0.2 2.0 BOA 50 PC88 3.8 0.3 160 1.25 12.5 13.5 4,800 3.8 0.055 1.2 B9A 51 PC900 3.9 0.3 135 1.0 11.5 14.5 5,250 3.3 0.08 0.35 BIG 35 PC97 (T) 4.5 0.3 135 1.0 11.0 13.0 5,000 3.2 0.25 0.5 BG 30 ECC81 (DT) 6.3 0.3 250 2.0 10.0 5.5 10,000 2.5 0.4 1.5 B9A 1 ECC83 (DT) 6.3 0.3 250 2.0 1.2 1.6 62,500 1.6 0.3 1.7 B9A 1 ECC84 (DT) 6.3 0.33 90 1.5 12.0 6.0 4,000 2.1 0.16 1.1 B9A 18 ECC85 (DT) 6.3 0.43 250 2.3 10.0 5.9 9.600 3.0 0,18 1.5 BOA 28 Continued 11