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| Valve Tester Manuals. Thanks to Martin Forsberg |  
 |  | The AVO Valve Data Manual, Edition 17, 1965 | 34,351,039 bytes
 |  | The AVO Valve Data Manual, Edition 23, 1981 | 25,361,056 bytes
 |  | The AVO Valve Data Manual, Edition 23, OCR Version | 3,365,439 bytes
 |  | CT160 & CT160A schematics corrected & modified | 827,225 bytes
 |  | CT160 Operating Instructions THORN BROWN | 3,582,661 bytes
 |  | CT160 Working Instructions 2nd Edition | 3,662,261 bytes
 |  | CT160A Working Instructions & Service Manual & Inner Workings | 8,673,385 bytes
 |  | CT160A Extra Info | 14,601,367 bytes
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    | TYPE-160 1
     | TYPE-160 2
     | VCM-163 1
     | VCM-163 2
     | VCM-MkI
     | VCM-MkII early
     | VCM-MkII late 1
     | VCM-MkII late 2
     | VCM-MkIII
     | VCM-MkIV 1
     | VCM-MkIV 2
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