SPECIAL PURPOSE TO JAN TUBE TYPE CROSS REFERENCE
          ================================================

    Complied by: Jerry Proc   VE3FAB (E-mail:jproc@bellglobal.com)

    NOTES:

    1) All efforts have been made to make this list as accurate
       as possible. It is primarily intended as a guide. Certain
       tube substitutions may not work.

    2) Please contact the author if you have any additional types
       which should be added to this list.

    3)  Ind.= Industrial; Mil. = Military; Gen. = General;
        SP = Special Purpose type

    SP TYPE  JAN TYPE                   USE
    ===============================================================

    1201        7E5
    1203        7C4
    1204       7AB7
    1206        7G8
    1216        6J6
    1217       6BE6
    1219       2C51W
    1221        6C6
    1223        6J7
    1225        6L7
    1229        932
    1231        7V7
    1231Z       31Z
    1232        7G7
    1273       7AJ7
    1274        7Y4
    1275        5Z3
    1280       14C7
    1282        7W7
    1288        3B7
    1291        3B7
    1292        3B7
    1294        1R4
    1299        3D6

    1381HQ     6AK5

    1603        6C6
    1611        6F6
    1612        6L7            Broadcast - Audio Voltage Amp.
    1613        6F6
    1614        6L6
    1620        6J7            Broadcast - Audio Voltage Amp.
    1621        6F6            Ind. or Mil. - Audio Pwr Output
    1622        6L6            Ind. or Mil. - Audio Pwr Output
    1631       6L6GB
    1632      12L6GT
    1634       12SC7           Ind. or Mil - Voltage Amp
    1634      12L8GT
    1642       2C21
    1644      12L8GT           Ind. or Mil. - Audio Pwr Output
    1649       6AC7
    1650        955
    1655       6SC7
    1657       2050
    1659        2A6
    1662        3A4
    1664       12C8
    1665       2050

    1852       6AC7
    1853       6AB7

    2013       6211
    2014       6CL6
    2050       1657
    2050A      1657
    2935A       81

    3841        80
    3871        50
    3872        30
    3873        32
    3921        45
    3924        24A

    4465        35
    4610        36
    4611        37
    4612        38

    5517     CK-1013, 1B48
    5556        PJ8
    5557       TT-17
    5588       6161
    5590       401A
    5591     6AK5, 403B        Ind or Mil.- Wide Band Amp

    5603       398A
    5632        C3J
    5642       SN956
    5651     0A3/VR-75
    5654     6AK5W, 1220       Ind or Mil.- Wide Band Amp
    5659       12A6
    5660       12C8
    5661       12SK7
    5664       3631
    5667       889RA
    5670     2C51, 1219        Ind. or Mil. - Gen. Purpose
    5679        7A6            Ind. or Mil. - Low Current Rectifier
    5684       C3JA
    5685     5C21, 6G45        Xenon Thyratron

    5691      6SL7GT           Ind. or Mil - Voltage Amp
    5692      6SN7GT           Ind. or Mil. - Gen. Purpose
    5693       6SJ7            Ind. or Mil - Voltage Amp

    5720       FG33
    5725       6AS6            Ind. or Mil. - Gated Amp
    5726       6AL5            Ind. or Mil. - Detector, Rect.
    5727       2D21W           Ind. or Mil. - Relay Control
    5731        955
    5742        PJ7
    5743       PJ21
    5749       6BA6W           Ind. or Mil. - RF or IF Amp
    5750       6BE6W           Ind. or Mil. - Converter
    5751      12AX7G           Ind. or Mil. - Voltage Amp
    5755     6SU7GTY, 420A
    5759       501R
    5762       7C24
    5771        356

    5814A      12AU7           Ind. or Mil. - Gen. Purpose
    5824       25B6G           Ind. or Mil. - Audio Power Output
    5839       25Z6
    5842     417A, 417B        Ind. or Mil. - Wide Band Amp
    5844        6J6            Computer
    5847       404A            Ind. or Mil. - RF Amp
    5852        6X5            Ind. or Mil. - Rectifier
    5871       6V6GT           Mobile - Audio Power Output
    5881     6L6/1614          Audio - Power Output
    5894       9903

    5910        1U4
    5915       6BE6            Computer type
    5915A      6BE6
    5923       9904
    5930       2A3W            Ind. or Mil. - Audio Power Output
    5931      5U4WGB           Ind. or Mil. - Rectifier
    5932     6L6GWGA, 6L6WGB   Ind. or Mil. - Audio Power Output
    5933     807W, 807WA
    5933WA   807, 807W, 807WA
    5948       1754
    5949       1907
    5957        E37
    5959        E41
    5963       12AU7
    5964       6J6A
    5965       12AV7           Computer type
    5977        6K6
    5992       6V6GT           Ind. or Mil. - Audio Power Output
    5993        6X4
    5998       421A            Ind. or Mil. - Series Regulator

    6002       OK221
    6005       6AQ5            Ind. or Mil. - Audio Power Output
    6021       6BF7
    6028       408A            Ind. or Mil. - RF Amp
    6038       1B35A

    6045        6J6            Ind. or Mil. - Gen Purpose
    6046     25L6GT, KT32      Ind. or Mil. - Relay Energizer
    6057       12AX7           Ind. or Mil. - Voltage Amp
    6058       6AL5W           Ind. or Mil. - Detector; Rect.
    6059        6J7
    6060       12AT7           Ind. or Mil. - Oscillator/mixer
    6061       6BW6            Ind. or Mil. - Audio Power Output
    6062       5763
    6063        6X4            Ind. or Mil. - Rectifier
    6064       6AM6
    6065       6BH6
    6066       6AT6            Ind. or Mil. - Det, Voltage Amp.
    6067       12AU7           Ind. or Mil. - Gen Purpose
    6072A      6AY7            Ind. or Mil. - Audio Voltage Amp.
    6073     0A2WA/VR-150      Ind. or Mil. - Voltage Regulator
    6074        0B2            Ind. or Mil. - Voltage Regulator
    6075       9907
    6076       9907R
    6077       9906
    6078       9906R
    6079       9908
    6080       6AS7            Ind. or Mil. - Series Regulator
    6083       9909
    6084       6SJ7
    6085      6SN7GT
    6087      5Y3WGTB          Ind. or Mil. - Rectifier
    6094       6AQ5            10,000 hour version
    6095       6AQ5W           Ind. or Mil. - Audio Power Output
    6096       6AK5W           Ind. or Mil. - Wide Band Amp.
    6097       6AL5W           Ind. or Mil. - Detector; Rectifier
    6098      6AR6WA
    6099       6J6WA

    6100       6C4WA           Ind. or Mil. - Gen. Purpose
    6101       6J6WA           Ind. or Mil. General Purpose
    6106      5Y3WGT           Ind. or Mil. - Rectifier
    6113     6SL7WGT, 6SL7W    Ind. or Mil. - Audio Voltage Amp
    6117       1B58
    6130       3C45
    6132       6CH6
    6134       6AC7W           Ind. or Mil. - RF Amp
    6135       6C5WA           Ind. or Mil. - Gen. Purpose
    6136      6AU6WA           Ind. or Mil. - RF or IF Amp
    6137       6SK7            Ind. or Mil. - RF or IF Amp
    6146B      8298A
    6155     4-125A, 4D21
    6180      6SN7GT           Ind. or Mil. - Gen. Purpose
    6185     2C51W, 1219
    6186     6AG5, 6BC5
    6187       6AS6W           Ind. or Mil. - Gated Amp
    6188      6SU7WGT          Ind. or Mil. - DC Amp
    6189      12AU7WA          Ind. or Mil. - General Purpose
    6192       6AK6
    6197     6CL6, 2014        Computer - Frequency Divider

    6201     12AT7WA, 12AT7WB  Ind. or Mil. - Oscillator/mixer
    6202        6X4            Ind. or Mil. - Rectifier
    6203        6X4            Ind. or Mil. - Rectifier
    6211       2013
    6252       9910
    6265       6BH6            In.d or Mil. - Wide Band Amp
    6277       3B28A
    6278       C5F14
    6288        816

    6322       BL25
    6333        892
    6336       6SA7
    6350       12BH7
    6384       6AR6            Ind. or Mil. - Pulse Amp
    6385       2C51            Ind. or Mil. - Gen. Purpose
    6386       2C51            Ind. or Mil. - Cascode Amp
    6388       443A            Ind. or Mil. - Cold cathode relay
                                              tube.

    6402       QK303
    6405       1640
    6444      ESM-48
    6485      6AH6WA           Ind. or Mil. - Wide Band Amp

    6520       6AS7G           Ind. or Mil. - Series Regulator
    6527       2J42
    6582       TE35

    6626       0A2WA           Ind. or Mil. - Voltage Regulator
    6627       0B2WA           Ind. or Mil. - Voltage Regulator
    6660     6BA6, 6BA6W       Mobile - RF or IF Amp
    6661       6BH6            Mobile - Wide Band Amp
    6662       6BJ6            Mobile - Wide Band Amp
    6663       6AL5W           Mobile - Detector; Rectifier
    6664       6AB4            Mobile - General Purpose
    6669     6AQ5A, 6AQ5W      Mobile - Audio Power Output
    6676       6CB6            Mobile - RF or IF Amp
    6677       6CL6            Mobile - Audio Power Output
    6678       6U8A            Mobile - Oscillator/mixer
    6679     12AT7, 12AT7WA    Mobile - Oscillator/mixer
    6680       12AU7           Mobile - General Purpose
    6681       12AX7           Mobile - Voltage Amp

    6754     TE36, 412A

    6829       12AV7           Computer type
    6853     5Y3WGT, 5Y3WGTA
    6888       TE40
    6897       2C39

    6913       12BH7           Computer type
    6928       6AQ5            Ind. or Mil. - Audio Power Output
    6939       7645
    6968       6AK5            Ind. or Mil. - Wide Band Amp
    6979      4X250B

    7000     6C6, 1603
    7007       6166A
    7025       12AX7           Audio - Voltage Amp
    7025A      12AX7
    7034      4X150A
    7035     4X150D, 7609
    7036       6BE6            Computer - Gated Amp
    7054     12BY7, 8077
    7055       6AL5
    7056       6CB6
    7057       6BZ7
    7058       12AX7
    7059        6U8
    7060       6AU8
    7061       12AB5

    7137        6J4
    7167       6CV5
    7184        6V6
    7189       6BQ5            Audio - Power Output

    7212       6146            Mobile - RF Power Output
    7244        6J6            Ind. or Mil. - Gen. Purpose
    7245A       6J4            Ind. or Mil. - RF Amp
    7247       12DW7

    7318       12AU7           Ind. or Mil. - Pulse Amp
    7320       6BQ5            Mobile - Audio Power Output

    7408      6V6GTA           Audio - Power Output
    7494      12AX7WA

    7543     6AU6WA, 6AU6WB    Audio - Voltage Amp
    7581       6L6GC
    7581A      6L6GC           Audio - Power Output

    7700        6C6
    7717       6CY5            Mobile - RF Power Amp
    7724       14GT8           Mobile - Detector, Voltage Amp
    7728       12AT7           Industrial - Instrument Service
    7729      12AX7WA          Industrial - Instrument Service
    7730      12AU7WA          Industrial - Instrument Service
    7731        6U8            Industrial - Instrument Service
    7732       6CB6            Industrial - Instrument Service
    7733       12BY7           Industrial - Instrument Service
    7734       6GE8            Ind. or Mil. - Voltage Regulator
    7738       6AN4            Ind. or Mil. - Class C Amp
    7752       6AS6
    7755       6AJ5
    7756       6AR6

    7803       6FW8            Ind. or Mil. - Class C Amp
    7867       6EX6

    8016       1B3GT
    8018        807

    8425       6AU6            Industrial - Instrument Service
    8426A      12AU7           Industrial - Instrument Service

    8532        6J4            Ind. or Mil. - RF Amp.