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Antique : Power Triode Operational Comparison                          oldtube.com

Type

Ef/If

class

Ep

Ec

Ip

rp

gm

mu

Rl

Po

2A3

2.5V/2.5A

A1S

250V

-45V

60mA

800Ω

5200μS

4.5

2500Ω

3.5W

AB1pp

300V

-62V

80-120mA

3000Ω

15.0W

AB1pp

300V

780ohm

80-144mA

5000Ω

10.0W

6A3 (6.3V 2A3)

6.3V/1A

A1S

250V

-45V

60mA

800Ω

5200μS

4.2

2500Ω

3.7W

AB1pp

325V

-68V

80mA

3000Ω

15.0W

AB1pp

325V

850ohm

80mA

5000Ω

10.0W

6A5G (6.3V Cathode-2A3)

6.3V/1.25A

A1S

6B4G (6.3V 2A3)

6.3V/1A

A1S

10/UX210/CX310/410/VT25

7.5V/1.25A

A1S

350V

-33V

16mA

5150Ω

1550μS

8

11000Ω

0.9W

A1S

425V

-40V

18mA

5000Ω

1600μS

8

10200Ω

1.6W

12A/112A/UX112A/CX112A

5V/0.25A

A1S

90V

-5V

5mA

5000Ω

1500μS

7.5

6000Ω

0.03W

A1S

135V

-10V

7mA

4700Ω

1600μS

7.5

8500Ω

0.1W

A1S

180V

-15V

9mA

4100Ω

1800μS

7.5

9650Ω

0.3W

45/145/UX245/CX345/545

2.5V/1.5A

A1S

180V

-32V

31mA

1800Ω

1850μS

3.5

3500Ω

0.8W

A1S

250V

-50V

34mA

1750Ω

2000μS

3.5

3900Ω

1.6W

A1S

275V

-56V

36mA

1670Ω

2100μS

3.5

4600Ω

2.0W

AB2pp

275V

-68V

28-138mA

3200Ω

18.0W

AB2pp

275V

775ohm

36-90mA

5060Ω

12.0W

50/UX250/CX350/450

7.5V/1.25A

A1S

350V

-63V

45mA

1900Ω

2000μS

3.8

4100Ω

2.4W

A1S

400V

-70V

55mA

1800Ω

2100μS

3.8

3670Ω

3.4W

A1S

450V

-84V

55mA

1800Ω

2100μS

3.8

4350Ω

4.6W

52

6.3V/0.3A

A1S

180V

0V

40mA

1670Ω

3000μS

5

2000Ω

1.5W

71A/171A/UX271A/CX371A

5V/0.25A

A1S

135V

-27V

18mA

1820Ω

1650μS

3

3000Ω

0.4W

A1S

180V

-41V

20mA

1750Ω

1700μS

3

4000Ω

0.8W

182B/482B

5V/1.25A

A1S

250V

-35V

20mA

2500Ω

2000μS

5

4500Ω

1.4W

183/483

5V/1.25A

A1S

250V

-60V

30mA

1750Ω

1700μS

3

5000Ω

1.8W

UV-202

7.5V/2.35A

A1S

UV-203/203A

7.5V/2.35A

A1S

WE - 205D

4.5V/1.6A

A1S

250V

-15V

20mA

4000Ω

1750μS

7

A1S

350V

-25V

27mA

4000Ω

1750μS

7

8000Ω

1.6W

211/311/VT-4C/2T-4C

10V/3.25A

A1S

3400Ω

3500μS

12

WE - 252A

5V/2A

A1S

400V

-60V

35mA

3000Ω

1700μS

5

WE - 275A

A1S

WE - 300B

5V/1.2A

A1S

450V

-97V

80mA

700Ω

5500μS

3.8

17.8W

A1S

400V

-98V

19mA

A1S

350V

-70V

23mA

A1S

250V

-57V

22mA

A1S

450V

-38V

60mA

3600Ω

4.0W

801/VT62

7.5V/1.25A

A1S

425V

-40V

18mA

1000Ω

5000μS

10200Ω

1.6W

A1S

500V

-45V

24mA

1725Ω

4600μS

8000Ω

2.3W

A1S

600V

-55V

30mA

1840Ω

4300μS

9800Ω

3.8W

822

A1S

845

10V/3.25A

A1S

1000V

-145V

90mA

1700Ω

3100μS

6000Ω

24.0W

A1S

1250V

-195V

80mA

1700Ω

3100μS

11000Ω

30.0W

A245

2.5V/1.5A

A1S

180V

-32V

31mA

1800Ω

1850μS

3.5

3500Ω

0.8W

A750

7.5V/1.25A

A1S

350V

-63V

45mA

1900Ω

2000μS

3.8

4100Ω

2.4W

AD1

4V/0.95A

A1S

250V

-45V

60mA

670Ω

6000μS

2300Ω

4.2W

AT20

4V/0.6A

A1S

250V

-45V

40mA

1500Ω

2500μS

4

1.7W

C603

6V/0.25A

A1S

135V

-27V

18mA

1820Ω

1650μS

3

3000Ω

0.4W

A1S

180V

-41V

20mA

1750Ω

1700μS

3

4000Ω

0.8W

D30

4V/1A

A1S

400V

-100V

62mA

580Ω

6900μS

4

8.4W

DA30

4V/2A

A1S

500V

60mA

580Ω

6900μS

4

DA100

6V/2.7A

A1S

1000V

-149V

100mA

1400Ω

3900μS

5.5

30.0W

DA250

10V/2A

A1S

2500V

-34V

48mA

830Ω

6000μS

5

16.0W

DA60

6V/4A

A1S

500V

-135V

120mA

835Ω

3000μS

2.5

E105B

7.2V/1.1A

A1S

800V

-80V

40mA

3500Ω

1750μS

10.0W

E403

4V/1A

A1S

180V

-32V

31mA

1800Ω

1850μS

3.5

3500Ω

0.8W

A1S

250V

-50V

34mA

1750Ω

2000μS

3.5

3900Ω

1.6W

A1S

275V

-56V

36mA

1670Ω

2100μS

3.5

4600Ω

2.0W

E406N

4V/1A

A1S

500V

-24V

48mA

1700Ω

3500μS

6

1.8W

Ed

4V/1A

A1S

650Ω

6000μS

3.9

F203

2.5V/1.5A

A1S

180V

-32V

31mA

1800Ω

1850μS

3.5

3500Ω

0.8W

A1S

250V

-50V

34mA

1750Ω

2000μS

3.5

3900Ω

1.6W

A1S

275V

-56V

36mA

1670Ω

2100μS

3.5

4600Ω

2.0W

F703

7.5V/1.25A

A1S

350V

-63V

45mA

1900Ω

2000μS

3.8

4100Ω

2.4W

A1S

400V

-70V

55mA

1800Ω

2100μS

3.8

3670Ω

3.4W

A1S

450V

-84V

55mA

1800Ω

2100μS

3.8

4350Ω

4.6W

LK430

4V/0.3A

A1S

250V

-32V

20mA

2600Ω

1900μS

5

1.1W

LK460

4V/1A

A1S

500V

-24V

48mA

1700Ω

3500μS

6

1.8W

LK600

4V/1A

A1S

500V

-24V

48mA

1700Ω

3500μS

6

1.8W

LK4100

4V/0.9A

A1S

400V

-30V

26mA

4000Ω

2000μS

8

2.6W

LK4112

4V/1A

A1S

500V

-24V

48mA

1700Ω

3500μS

6

1.8W

LK4130

4V/1.3A

A1S

500V

80mA

3000Ω

2500μS

LK4200

4V/2A

A1S

500V

-43V

40mA

10000Ω

14.6W

LK7110

7.5V/1.1A

A1S

800V

-80V

40mA

3500Ω

2000μS

1.75

10.0W

LK7115

7.5V/1.1A

A1S

800V

-180V

35mA

1800Ω

3200μS

3.2

8.0W

LK8100

7.5V/1.1A

A1S

800V

-80V

40mA

3500Ω

2000μS

1.75

10.0W

LL4C

4V/1.2A

A1S

350V

-10V

18mA

2000Ω

3500μS

10200Ω

1.0W

LX625

6V/0.25A

A1S

180V

-41V

20mA

1750Ω

1700μS

3

0.8W

P625

6V/0.25A

A1S

250V

-20V

19mA

2400Ω

2500μS

6

P625A

6V/0.25A

A1S

200V

-39V

25mA

PX4

4V/1A

A1S

250V

-34V

48mA

830Ω

6000μS

5

PX4C

4V/1A

A1S

500V

-24V

48mA

1700Ω

3500μS

6

1.8W

PX25

4V/2A

A1S

400V

-32V

70mA

1200Ω

7200μS

8.8

5.9W

PX25A

4V/2A

A1S

400V

-100V

62mA

580Ω

6900μS

4

8.4W

RE604

4V/0.65A

A1S

250V

-40V

1300Ω

2700μS

3.5

3000Ω

2.0W

RS237

10V/3/3A

A1S

3000Ω

4000μS

12

RS241

3.8V/0.6A

A1S

4900Ω

3500μS

17

RS242

3.8V/0.72A

A1S

5700Ω

3000μS

17

RV239

7.2V/1.1A

A1S

1800Ω

1800μS

3.3

RS258

7.2V/1.1A

A1S

3500Ω

2000μS

7

RS278

10V/3.25A

A1S

1800Ω

2800μS

50

RO4404

4V/1A

A1S

500V

-24V

48mA

1700Ω

3500μS

6

1.8W

RO4810

4V/2A

A1S

550V

-36V

45mA

2500Ω

4000μS

10

5.9W

WE -VT2

6.5-7.5V/1.35A

A1S

WE - VT52

6.3V/1A

A1S

Japanese-Original's

6A3B

6.3V/1.6A

A1S

250V

-44V

60mA

1100Ω

3640μS

3000Ω

3.0W

12AK (cathode 12A)

5V/0.4A

A1S

71H

6.3V/0.8A

A1S

超チョウ45

2.5V/1.8A

A1S

250V

-45V

35mA

1450Ω

3800μS

5.5

3500Ω

3.0W

A1S

300V

1200ohm

60-80mA

5000Ω

8.0W

45H

6.3V/0.8A

A1S

202 (JAPAN)

7.5V/1.25A

A1S

350V

-33V

16mA

5150Ω

1550μS

8

11000Ω

0.6W

A1S

425V

-40V

18mA

5000Ω

1600μS

8

10200Ω

1.9W

MT-3S

7.5V/2.75A

A1S

600V

-85V

65mA

3800Ω

3800μS

5400Ω

8.5W

MT-4B

7.5V/2.5A

A1S

750V

-98V

95mA

1700Ω

3100μS

3400Ω

15.0W

TB520B

5V/2A

A1S

400V

-60V

65mA

3000Ω

1400μS

4.2

TB627A

5V/2A

A1S

350V

-25V

36mA

3000Ω

2900μS

8.5

Type

Ef/If

class

Ep

Ec

Ip

rp

gm

mu

Rl

Po