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|Manufacturer=Tektronix | |Manufacturer=Tektronix | ||
|Model=154-0644-xx | |Model=154-0644-xx | ||
|Part_nos=154-0644-05, 154-0644-09 | |Part_nos=154-0644-00,154-0644-04,154-0644-05,154-0644-09 | ||
|Description=CRT with [[distributed deflection plates]] | |Description=CRT with [[distributed deflection plates]] | ||
|Used_in=7704A; 7854; 7904; 7904A; R7903 | |Used_in=7704A; 7854; 7904; 7904A; R7903 | ||
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As used in the 7904, the 154-0644-05 CRT has a deflection factor of 3 V/div and an impedance of 385 Ω. | As used in the 7904, the 154-0644-05 CRT has a deflection factor of 3 V/div and an impedance of 385 Ω. | ||
Håkan H. said: | |||
<blockquote> | |||
There were four revisions of 154-0644-0x, -00, -04, -05 and -09. | |||
Only -00 (<B040600) and -05 (replacement for -00 and used from B040600) were used in 7704A. | |||
The other two were used by 7854 and 790x series opt 78 i.e P11 phosphor. For some reason 7704A opt 78 used another CRT. | |||
If the CRT was replaced on 7704A below B221300, a Part Replacement kit (050-1732-01) was required. | |||
It contained the -05 CRT and two resistors (one for 7704A and one for 7904/R7903) used to reduce the heater voltage to extend CRT life. | |||
Kit instructions here: http://hakanh.com/dl/docs/kitinstructions/050-1732-01.pdf | |||
</blockquote> | |||
==Used in == | ==Used in == |