Thread: Ref 5 / 5se and different 6550 tubes
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  #20  
Old 01-21-2013, 03:58 PM
Maxflo Maxflo is offline
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Join Date: Apr 2012
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6h30 are standard one and acording to ARC manual they are for around 4k hours. 6h30-DR are spec version/military one with longer oper. hours. I changed 6h30 for DR verison in both Ref5 and CD8
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