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Restore Original Sort Order Thumbnail Genre(s) ProcessType Carrier Type Medium Type Name of Holotype Product name Product Code Manufacturer Required Device(s) Height Width Diameter Depth Standards Market Running Length Range Distinguishing Features Date Production Started Date Production Stopped Assessment Summary Process Materials Marketed Capacity/Extent Life: Community Life: Manufacturer Remarks Status UserName_Modified Date_Modified
1 Professional Void Douglas Elford-NLA 30/07/2009
2 Super DLTape I
Quantum SDLT 220; SDLT 320 Professional 559 m (1760 ft recording) 110 GB/ 220 GB on SDLT220 drive
160GB / 320 GB on SDLT 320 drive
Douglas Elford-NLA 29/06/2009
3 021-- 1 mil rejected acetate tape 021 Ampex Professional 1960s - early sold as Shamrock Uncatalogued Douglas Elford-NLA 29/07/2015
4 031-- 1.5 mil rejected mastering tape 031 Ampex Professional (maybe 406, 456, etc. depending on batch) Was available in 2500' pancakes as well as 7" reels in 1983 Uncatalogued Douglas Elford-NLA 29/07/2015
5 041-- 1 mil version of 031 in 7" only 041 Ampex Professional Uncatalogued Douglas Elford-NLA 29/07/2015
6 051-- 0.5 mil rejected NB acetate tape (sold as Shamrock) (early 60s) 051 Ampex Professional Uncatalogued Douglas Elford-NLA 29/07/2015
7 163-- 1/2" helical scan industrial videotape 163 Ampex Professional 1968 ? Uncatalogued Douglas Elford-NLA 02/06/2009
8 164-- 1/2" helical scan videotape for color use 164 Ampex Professional Uncatalogued Douglas Elford-NLA 02/06/2009
9 174-- 1/2" helical scan industrial videotape 174 Ampex Professional 1970s ? Uncatalogued Douglas Elford-NLA 02/06/2009
10 175-- 2" Quad tape 175 Ampex Professional 1990 replacing 144 Uncatalogued Douglas Elford-NLA 02/06/2009
11 194-- 1/2" helical scan industrial videotape 194 Ampex Professional 1970s 1983 Uncatalogued Douglas Elford-NLA 02/06/2009
12 211-- 1.5 mil NB Irish ??? 211 Ampex Professional 1963 1.5 mil NB Irish ??? Uncatalogued Douglas Elford-NLA 29/07/2015
13 220-- Degaussing and head cleaning cartridge for cassettes (not real tape) 220 Ampex Professional (not real tape) Uncatalogued Douglas Elford-NLA 02/06/2009
14 228-- Degaussing and head cleaning cartridge for 8-track tape (not real tape) 228 Ampex Professional (not real tape) Uncatalogued Douglas Elford-NLA 02/06/2009
15 292-- 1.0 mil polyester 1/4" audio 292 Ampex Professional backcoated on 7" reel Uncatalogued Douglas Elford-NLA 29/07/2015
16 304-- Tape optimized for low speed logging use 304 Ampex Professional 1968 ? Uncatalogued Douglas Elford-NLA 02/06/2009
17 311-- Irish version of 511 311 Ampex Professional 1962 Irish version of 511 Uncatalogued Douglas Elford-NLA 02/06/2009
18 321-- Irish version of 521 321 Ampex Professional 1962 Irish version of 521 Uncatalogued Douglas Elford-NLA 02/06/2009
19 331-- Irish version of 531 331 Ampex Professional 1962 Irish version of 531 Uncatalogued Douglas Elford-NLA 02/06/2009
20 341-- Irish version of 541 341 Ampex Professional 1962 Irish version of 541 Uncatalogued Douglas Elford-NLA 02/06/2009
21 342-- 1.5 mil "Plus Series" Consumer 1/4" tape (185 nWb/m) 342 Ampex Professional 1970s 1980s Ampex Plus-Series is a non-backcoated tape sold for consumer 1 mil, dark color, on 7" reels with leaders only.recording Uncatalogued Douglas Elford-NLA 29/07/2015
22 344-- 1 mil PE, low noise 344 Ampex Professional 1973 non-backcoated 1/4" tape Uncatalogued Douglas Elford-NLA 29/07/2015
23 345-- 1.5 mil red oxide tape 345 Ampex Professional recommended for B&K 7004 recorder( av in 1976) Uncatalogued Douglas Elford-NLA 29/07/2015
24 351-- Irish version of 551 351 Ampex Professional 1962 Irish version of 551 Uncatalogued Douglas Elford-NLA 02/06/2009
25 372-- Ampex 406 on 7" reels for consumer use "20-20 series" 372 Ampex Professional 1970s - mid>late Ampex 406 on 7" reels for consumer use "20-20 series" Uncatalogued Douglas Elford-NLA 02/06/2009
 
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