12AT75 tubes

12AT7WA4 tubes

Military version

12RLL31 tubes

Low noise 12AT7 compatible from NEC

5965

Industrial tube with lower gain.

6060

Very quiet.

6201

Industrial version

62113 tubes

Lower gain

6414

Industrial and more rugged. 10.000 hours guaranteed heater rating.

6679

Industrial designed for mobile communication use.

6829

Industrial, very quiet, rugged.

70101 tubes

7062

Lower gain and guaranteed 10.000 hours heater life.

7728

Industrial version for avionics., High end industrial made by CBS or Hytron.

A2900

Controlled noise spec, designed for audio.

CV40241 tubes

British military version.

CV4551 tubes

British military.

E180CC

European lower gain and guaranteed 10.000 hours heater life.

E81CC

European, screened for audio use, low noise, 10.000 rated heater life.

ECC801S

European, screened for audio use, low noise, 10.000 rated heater life.

ECC811 tubes

European version.

M8162

British military.

TS65

Made for European telephone networks. 10.000 hours heater lfe.

12AU769 tubes

12AU7A20 tubes

12AU7S1 tubes

12AU7WA8 tubes

12AU7WA-H1 tubes

12AU7WAH

13D51 tubes

For industrial use

13D5A1 tubes

For industrial use

58142 tubes

5814A

5814WA1 tubes

59633 tubes

6085

6085

61898 tubes

6189W

6189WA

6680

Designed originally for two-way mobile radio use, able to withstand variations in filament voltage without affecting it's output.

73161 tubes

7316

823623

B7491 tubes

CV40032 tubes

CV4913 tubes

E80CC1 tubes

E80CC

E82CC5 tubes

ECC186

ECC186

ECC8022 tubes

ECC802S2 tubes

ECC8259 tubes

M8136

12AD74 tubes

12AX7180 tubes

12AX7-HD

12AX7A41 tubes

12AX7DC-A1 tubes

12AX7S8 tubes

12AX7WA5 tubes

12AX7WAH

Military version

12AX7WB

12AX7WC

12DF73 tubes

Lowest noise 12AX7 variation. Rare aircraft/hospital grade version.

12DT7

575110 tubes

60573 tubes

Military variant from Brimar. High reliability, low microphony. Similar to ECC803S.

66813 tubes

6851

6KX8

6L131 tubes

702516 tubes

A low noise version of 12AX7 audio tube.

7025A1 tubes

7058

A military / industrial grade version of 12AX7 audio tube. It was designed to be run on 12v series heaters, for car audio. Can run on either 12v series or center tapped 6.3v parallel.

7729

77302 tubes

Industrial version made by CBS

B33913 tubes

B7591 tubes

CV40042 tubes

CV4035

CV4925 tubes

CV8156

CV8222

E2164

E283CC6 tubes

A special quality development of the ECC83, but with a different pin layout. It can replace ECC83 by using an adapter.

E803CC

E83CC4 tubes

ECC8032 tubes

ECC803S1 tubes

A hi-performance 12AX7.

ECC8086 tubes

Has different pin layout. It can replace ECC83 by using an adapter.

ECC83138 tubes

FSE-67411 tubes

French variant

JG-12AX71 tubes

Military variant from General Electric

JG-57512 tubes

K1007

M81371 tubes

I619 tubes

12BV7

12BV7

12BY73 tubes

12BY7

12BY7A3 tubes

12BY7A

12DQ7

12DQ7

12DW7

12DW7

72471 tubes

7247

12SQGT

2C517 tubes

2C51W

2C52

396A4 tubes

567012 tubes

5670W3 tubes

5670WA1 tubes

63852 tubes

63863 tubes

6CC42

6N31 tubes

6N3P1 tubes

6N3P-DR

6Н3П-­­Е

Russian

6Н3П­­Е

Russian

CK5670

CV2831

CV4013

CV8247

GL-56701 tubes

Naming variant by General Electric

JG 5670

Military 5670 by GE

JKR-56701 tubes

Military 5670 by Ken-Rad

JRP-5670

Military 5670 by Raytheon

JW-2C511 tubes

M24621 tubes

Military variant of 5670

6661

6BH67 tubes

76933 tubes

E90F4 tubes

JRC-6BH6

6CG75 tubes

Has a metal shield in between

6FQ72 tubes

JOZ-6CG7

69223 tubes

Low noise, low microphonic and longer lifespan.

6DJ81 tubes

6H23

Russian equivalent of 6922 / E88CC

7308

Fits tight specifications.

7DJ8

CCa

Matched triode, low noise, 10.000 hours heater, low microphonic. Made for German government and military.

CV2492

European military version of 6922

CV2493

Military version of E88CC/01

E188CC1 tubes

European equivalent of 7308

E288CC

Low noise, 10.000 heater life.

E88CC5 tubes

E88CC/01

Stricter factory testing

ECC881 tubes

European name

M3624

PCC88

15781 tubes

33S30B

56922 tubes

6H8C1 tubes

6H8M1 tubes

6N8S1 tubes

6SN754 tubes

6SN7G49 tubes

6SN7GT49 tubes

6SN7GTA5 tubes

6SN7GTB12 tubes

6SN7GTY3 tubes

6SN7W

6SN7WGT

6SN7WGTA

7N72 tubes

Can be used with an adapter

B657 tubes

A pre-amp tube often used as rectifier.

CV19885 tubes

ECC333 tubes

VT-2313 tubes

WL5692

71991 tubes

6H7C

Russian variation

6N73 tubes

6N7GT3 tubes

6N7P

Chinese variation

6N7S

ECC31

VT-96

CV1811 tubes

ECC322 tubes

CV3884

ECC4014 tubes

62672 tubes

6267

CV29011 tubes

CV2901

E80F1 tubes

EF865 tubes

EF86

Z7293 tubes

Z729

2A3

300B

23991 tubes

421A

5998

60801 tubes

JAN-CTL-5998

Joint Army Navy

69732 tubes

6973

1614

1622

350A1 tubes

350B3 tubes

Identical to 6L6G

58812 tubes

5932

6L67 tubes

6L6G6 tubes

6L6GA

6L6GB1 tubes

6L6GC4 tubes

6L6WGA

6L6WGB

6L6Y

70275 tubes

7027A5 tubes

75811 tubes

CV10752 tubes

CV1799

British code for 350B

EL373 tubes

JAN-CNU-350B1 tubes

KT6612 tubes

VT-230

Identical to 350A

VT752 tubes

Military version of KT66

70275 tubes

7027

7027A5 tubes

7027A

75917 tubes

7591

7591A1 tubes

7591A

350A1 tubes

807

84173 tubes

8451 tubes

FAA-845W

6AG61 tubes

EL331 tubes

KT61

6CA738 tubes

6GB8

Version made by Toshiba, need adapter

EL3469 tubes

EL602 tubes

Same as EL34, but with different loctal base.

KT774 tubes

46549 tubes

4654K1 tubes

Different base then 4654

EL39

EL502 tubes

OS1

425

46993 tubes

4699N1 tubes

EL65 tubes

6BQ55 tubes

71892 tubes

7189A2 tubes

EL8413 tubes

N7091 tubes

65501 tubes

EL156

KT8810 tubes

TT211 tubes

Can be used in place of KT88, with adapter.

5998

60801 tubes

6080WA1 tubes

7236