Thread: 7DP4 and the 7JP4
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Old 02-14-2012, 08:40 AM
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John Q
  
Join Date: Sep 2010
Location: Southern California, IE
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7DP4 and the 7JP4
"7DP4. This CRT was primarily used in the RCA 621 set. Magnetic deflection; magnetic ... This CRT is electrically identical to the 7JP4 except for the screen size."

Is this true? Can the 7JP4 be substituted for the 7DP4?
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