Valve (Vacuum Tube) Equivalents:
Valves used in Racal RA17 and adapters.
Other common valves used in radio equipment.

CV (Commaon Valve) Commercial Equivalents:
CV European N. American Other Type
136 EL91 6AM5 7D9, N77, N144 Power pentode
138 EF91 6AM6 8D3, 6F12, Z77, SP6 Pentode
140 EB91 6AL5 6D2, D77 Double diode
283 EB91 6AL5   Double diode
329   6F33   Mixer pentode
453 EK90 6BE6 X77, X727 Heptode
454 EF93 6BA6 W727 Vari-μ pentode
455 ECC81 12AT7 B152 Double triode
491 ECC82 12AU7 B329 Double triode
492 ECC83 12AX7 6L13 Double triode
493 EZ90 6X4 U78 Full-wave rect.
729  - 5V4G 52KU Full-wave rect.
1377 GZ34 5AR4   Full-wave rect.
1832 150C2 0A2 STV150-30 Volt stab.
1833 108C1 0B2  STV108-30 Volt stab.
1862 EL90 6AQ5 N727 Beam Tetrode
1955 EF91 6AM6 8D3, 6F12, Z77, SP6 Pentode
2001 EF91 6AM6 8D3, 6F12, Z77, SP6 Pentode
2002 EL91 6AM5   Power pentode
2003 EL91 6AM5 7D9 Power pentode
2004 EB91 6AL5   Double diode
2005 EB91 6AL5   Double diode
2007 ECC82 12AU7   Double triode
2011  ECC83 12AX7   Double triode
2012 85A2     Volt stab.
2013 EL821 6CH6   Power pentode
2014 QV03-12   5763  
2016 ECC81 12AT7   Double triode
2127 EL821 6CH6 7D10 Power pentode 
2129  QVO3-12   5763  
2136    6BW6    
2195 EF91 6AM6 8D3, 6F12, Z77, SP6  
2209  -  - S6F33 Mixer pentode
2225  150B2     Volt stab.
2522   - 6AS6  - Mixer pentode
2524 EF94 6AU6    
2844   6X4W    
2882   6AL5W   Double diode
2883   6AQ5W    
2884  M8196 6AS6W  - Mixer pentode
2901 EF86 6F22 6267 Pentode, low microphony
2984 ECC230    6080  
3523 QV06-20   6146 Beam Tetrode
3998 E180F   6688 Pentode, Low Noise
4004 M8137   6057 Special ECC83
4007 M8212 6AL5W 5726 Double diode
4009 EF93 6BA6 5749 Vari-μ pentode
4011 M8196 6AS6W 5725 Mixer pentode
4012     5750 Heptode
4014 M8083   6064 Ruggedised EF91
4019   6AQ5W 6005  
4020   0A2WA   Volt stab.
4023   6AU6WA    
4024 M8182 12AT7WA QA2406, 6060 Double triode
4028  OB2WA     Volt. stab.
4055  EL821 6CH6   Power pentode
4064   S6F33   Mixer pentode
4086 EF86     Pentode, low microphony
4098 M8196 6AS6W 5725 Mixer pentode
4100   OA2WA    
4101   OB2WA    
5008   6080WA    
5037   6BA6W    
5065 ECF82 6U8    
5185    6X4WA    
5189 M8212 6AL5W 5726 Double diode
5190    6AQ5W 6005  
5212    12AT7WA    
5215 ECF80 6BL8 6C16  
5331 ECC189     Double triode
5809  E180F      
5810 EF184 6EJ7 6F30 Pentode
5831 EF183 6EH7 6F29 Vari-μ pentode
8018  EL91   N77  
8020 EF91   Z77  
8021  EB91   D77  
8041  EA76     Diode
8045 EL821 6CH6   Power pentode
8048    6BW6    
8068 EF86      
8200 EB91 6AL5   Double diode
8201 EK90 6BE6    
8202 EF93 6BA6    
8203   6X4    
8206      5763  
8209   6AS6   Mixer pentode
8210   6AU6    
8216     6080  
8218     6146  
8221   12AU7WA    
8222   12AX7W    
8223   6X4W    
8224 M8212 6AL5W 5726 Special EB91
8226 M8196 6AS6W 5725 Mixer pentode
8229   6AQ5W 6005  
8230   12AT7WA    
8232     6080WA  
8237 EZ90 6X4   Full-wave rect.
8248     5750 Heptode
8310 M8196 6AS6W 5725 Mixer pentode

Multiple CV numbers exist because later valves exceed the spec. of earlier ones.


Related web sites:
Valve Data: http://duncanamps.simplenet.com/tubedata/


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