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Tube Database (7,341 tube types · 1,270 archive entries)

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Tube record

U77, GZ34, 5AR4

Brand
Genalex

Round Tip

Base
Black
Bottle Height
Half
Country
England
Factory Code
B - Mullard, Blackburn, B - Mullard, Blackburn
Getter
O-Getter Halo
Glass Color
Clear Glass
Other Marks
Gold Lion
Archive ID
di6souup
Pin Color
Silver Pins
Plate Color
Matte Gray
Tip Shape
Round Tip

More tubes branded Genalex

  • Genalex KT66 tube — photo 1 of 7
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    Genalex KT66 tube — photo 5 of 7
    Genalex KT66 tube — photo 6 of 7
    Genalex KT66 tube — photo 7 of 7

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    Photo 1 of 7

    KT66

    Brand
    Genalex
  • Genalex KT77 tube — photo 1 of 2
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    KT77

    Brand
    Genalex
  • Genalex KT88 tube - M.O. — photo 1 of 23
    Genalex KT88 tube - M.O. — photo 2 of 23
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    Genalex KT88 tube - M.O. — photo 9 of 23
    Genalex KT88 tube - M.O. — photo 10 of 23
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    Genalex KT88 tube - M.O. — photo 14 of 23
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    Genalex KT88 tube - M.O. — photo 16 of 23
    Genalex KT88 tube - M.O. — photo 17 of 23
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    Genalex KT88 tube - M.O. — photo 22 of 23
    Genalex KT88 tube - M.O. — photo 23 of 23

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    Photo 1 of 23

  • Genalex, Gold Lion B759 tube — photo 1 of 9
    Genalex, Gold Lion B759 tube — photo 2 of 9
    Genalex, Gold Lion B759 tube — photo 3 of 9
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    Genalex, Gold Lion B759 tube — photo 5 of 9
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    Genalex, Gold Lion B759 tube — photo 8 of 9
    Genalex, Gold Lion B759 tube — photo 9 of 9

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    Photo 1 of 9

  • Genalex, Gold Lion B749 tube — photo 1 of 8
    Genalex, Gold Lion B749 tube — photo 2 of 8
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    Genalex, Gold Lion B749 tube — photo 8 of 8

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    Photo 1 of 8

  • Genalex KT88 tube - M.O. — photo 1 of 13
    Genalex KT88 tube - M.O. — photo 2 of 13
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    Photo 1 of 13

  • Genalex, Gold Monarch KT88 tube - M-O Valve Co. Ltd — photo 1 of 3
    Genalex, Gold Monarch KT88 tube - M-O Valve Co. Ltd — photo 2 of 3
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  • Genalex Z729 tube — photo 1 of 3
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  • Genalex, Gold Monarch KT66 tube - M-O Valve Co. Ltd — photo 1 of 8
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    Photo 1 of 8

  • Genalex KT66 tube — photo 1 of 5
    Genalex KT66 tube — photo 2 of 5
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    Photo 1 of 5

KT88

Maker
M.O.
Brand
Genalex

B759

Brand
Genalex, Gold Lion

B749

Brand
Genalex, Gold Lion

KT88

Maker
M.O.
Brand
Genalex

KT88

Maker
M-O Valve Co. Ltd
Brand
Genalex, Gold Monarch

Z729

Brand
Genalex

KT66

Maker
M-O Valve Co. Ltd
Brand
Genalex, Gold Monarch

KT66

Brand
Genalex

Equivalent and related tube numbers

Commonly cross-referenced designations for GZ34. Compatibility is not guaranteed. Before substituting, verify socket and pinout, heater voltage and current, bias requirements, and maximum ratings against the relevant manufacturers’ datasheets.

  • 5AR4

More GZ34 type tubes

  • Zaerix GZ34, 5AR4 tube — photo 1 of 3
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    Photo 1 of 3

    GZ34, 5AR4

    Brand
    Zaerix
  • Sonotone GZ34, 5AR4 tube — photo 1 of 2
    Sonotone GZ34, 5AR4 tube — photo 2 of 2

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    Photo 1 of 2

    GZ34, 5AR4

    Brand
  • Sylvania GZ34, 5AR4, F32 tube - Mullard — photo 1 of 3
    Sylvania GZ34, 5AR4, F32 tube - Mullard — photo 2 of 3
    Sylvania GZ34, 5AR4, F32 tube - Mullard — photo 3 of 3

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    Photo 1 of 3

  • Philips GZ34 tube - Mullard — photo 1 of 5
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  • Mullard GZ34 tube - Philips — photo 1 of 2
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    GZ34

    Maker
  • Valvo GZ34, F32 tube — photo 1 of 12
    Valvo GZ34, F32 tube — photo 2 of 12
    Valvo GZ34, F32 tube — photo 3 of 12
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    Valvo GZ34, F32 tube — photo 5 of 12
    Valvo GZ34, F32 tube — photo 6 of 12
    Valvo GZ34, F32 tube — photo 7 of 12
    Valvo GZ34, F32 tube — photo 8 of 12
    Valvo GZ34, F32 tube — photo 9 of 12
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    Photo 1 of 12

  • Amperex GZ34, 5AR4, F33 tube — photo 1 of 10
    Amperex GZ34, 5AR4, F33 tube — photo 2 of 10
    Amperex GZ34, 5AR4, F33 tube — photo 3 of 10
    Amperex GZ34, 5AR4, F33 tube — photo 4 of 10
    Amperex GZ34, 5AR4, F33 tube — photo 5 of 10
    Amperex GZ34, 5AR4, F33 tube — photo 6 of 10
    Amperex GZ34, 5AR4, F33 tube — photo 7 of 10
    Amperex GZ34, 5AR4, F33 tube — photo 8 of 10
    Amperex GZ34, 5AR4, F33 tube — photo 9 of 10
    Amperex GZ34, 5AR4, F33 tube — photo 10 of 10

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    Photo 1 of 10

  • Itt GZ34 tube - Mullard — photo 1 of 4
    Itt GZ34 tube - Mullard — photo 2 of 4
    Itt GZ34 tube - Mullard — photo 3 of 4
    Itt GZ34 tube - Mullard — photo 4 of 4

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    Photo 1 of 4

  • Philips, Miniwatt GZ34 tube — photo 1 of 3
    Philips, Miniwatt GZ34 tube — photo 2 of 3
    Philips, Miniwatt GZ34 tube — photo 3 of 3

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    Photo 1 of 3

  • Philips, Miniwatt GZ34 tube — photo 1 of 8
    Philips, Miniwatt GZ34 tube — photo 2 of 8
    Philips, Miniwatt GZ34 tube — photo 3 of 8
    Philips, Miniwatt GZ34 tube — photo 4 of 8
    Philips, Miniwatt GZ34 tube — photo 5 of 8
    Philips, Miniwatt GZ34 tube — photo 6 of 8
    Philips, Miniwatt GZ34 tube — photo 7 of 8
    Philips, Miniwatt GZ34 tube — photo 8 of 8

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    Photo 1 of 8

Equivalent and related tube numbers

Commonly cross-referenced designations for 5AR4. Compatibility is not guaranteed. Before substituting, verify socket and pinout, heater voltage and current, bias requirements, and maximum ratings against the relevant manufacturers’ datasheets.

  • GZ34

More 5AR4 type tubes

  • National Electronics 5AR4 tube — photo 1 of 4
    National Electronics 5AR4 tube — photo 2 of 4
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    National Electronics 5AR4 tube — photo 4 of 4

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    Photo 1 of 4

    5AR4

    Brand
    National Electronics
  • Zaerix GZ34, 5AR4 tube — photo 1 of 3
    Zaerix GZ34, 5AR4 tube — photo 2 of 3
    Zaerix GZ34, 5AR4 tube — photo 3 of 3

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    Photo 1 of 3

  • Sonotone GZ34, 5AR4 tube — photo 1 of 2
    Sonotone GZ34, 5AR4 tube — photo 2 of 2

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    Photo 1 of 2

    GZ34, 5AR4

    Brand
  • Sylvania GZ34, 5AR4, F32 tube - Mullard — photo 1 of 3
    Sylvania GZ34, 5AR4, F32 tube - Mullard — photo 2 of 3
    Sylvania GZ34, 5AR4, F32 tube - Mullard — photo 3 of 3

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    Photo 1 of 3

  • Amperex GZ34, 5AR4, F33 tube — photo 1 of 10
    Amperex GZ34, 5AR4, F33 tube — photo 2 of 10
    Amperex GZ34, 5AR4, F33 tube — photo 3 of 10
    Amperex GZ34, 5AR4, F33 tube — photo 4 of 10
    Amperex GZ34, 5AR4, F33 tube — photo 5 of 10
    Amperex GZ34, 5AR4, F33 tube — photo 6 of 10
    Amperex GZ34, 5AR4, F33 tube — photo 7 of 10
    Amperex GZ34, 5AR4, F33 tube — photo 8 of 10
    Amperex GZ34, 5AR4, F33 tube — photo 9 of 10
    Amperex GZ34, 5AR4, F33 tube — photo 10 of 10

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    Photo 1 of 10

  • Rogers 5AR4, F33 tube - Philips — photo 1 of 6
    Rogers 5AR4, F33 tube - Philips — photo 2 of 6
    Rogers 5AR4, F33 tube - Philips — photo 3 of 6
    Rogers 5AR4, F33 tube - Philips — photo 4 of 6
    Rogers 5AR4, F33 tube - Philips — photo 5 of 6
    Rogers 5AR4, F33 tube - Philips — photo 6 of 6

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    Photo 1 of 6

  • Triad, Amperex 5AR4, F32 tube - Mullard — photo 1 of 4
    Triad, Amperex 5AR4, F32 tube - Mullard — photo 2 of 4
    Triad, Amperex 5AR4, F32 tube - Mullard — photo 3 of 4
    Triad, Amperex 5AR4, F32 tube - Mullard — photo 4 of 4

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    Photo 1 of 4

  • Ge 5AR4 tube - Mullard

    5AR4

    Maker
    Mullard
    Brand
    Ge
  • Marconi Radiotron 5AR4, GZ34, F32 tube - Mullard — photo 1 of 2
    Marconi Radiotron 5AR4, GZ34, F32 tube - Mullard — photo 2 of 2

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    Photo 1 of 2

    5AR4, GZ34, F32

  • Amperex, Hewlett Packard GZ34, 5AR4, F32 tube - Mullard — photo 1 of 6
    Amperex, Hewlett Packard GZ34, 5AR4, F32 tube - Mullard — photo 2 of 6
    Amperex, Hewlett Packard GZ34, 5AR4, F32 tube - Mullard — photo 3 of 6
    Amperex, Hewlett Packard GZ34, 5AR4, F32 tube - Mullard — photo 4 of 6
    Amperex, Hewlett Packard GZ34, 5AR4, F32 tube - Mullard — photo 5 of 6
    Amperex, Hewlett Packard GZ34, 5AR4, F32 tube - Mullard — photo 6 of 6

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Sonotone

GZ34, 5AR4, F32

Maker
Mullard
Brand
Sylvania

GZ34

Maker
Mullard
Brand
Philips
Philips
Brand
Mullard

GZ34, F32

Brand
Valvo

GZ34, 5AR4, F33

Brand
Amperex

GZ34

Maker
Mullard
Brand
Itt

GZ34

Brand
Philips, Miniwatt

GZ34

Brand
Philips, Miniwatt

GZ34, 5AR4

Brand
Zaerix
Sonotone

GZ34, 5AR4, F32

Maker
Mullard
Brand
Sylvania

GZ34, 5AR4, F33

Brand
Amperex

5AR4, F33

Maker
Philips
Brand
Rogers

5AR4, F32

Maker
Mullard
Brand
Triad, Amperex
Maker
Mullard
Brand
Marconi Radiotron

GZ34, 5AR4, F32

Maker
Mullard
Brand
Amperex, Hewlett Packard