[Boatanchors] 12DQ6 tube question

[Jim Wiley]

Greg, as a general rule tubes intended for operation in TV receivers 
that have an "A" suffix were identical with the "standard" version 
except for having a controlled heater warm up time for series string 
operation.  Like all such "general" rules, not always true, but true 
often enough that you are unlikely to cause chaos by assuming it to be 
true. 


 - Jim, KL7CC



Greg Mijal wrote:
> Hi:
> Are there any significant differences between the 12DQ6 and the 12DQ6A (B) variants?I need to put new ones in the PA of my Hallicrafters SR 160.
> TNX
> and Season Greetings!
> Greg
> WA7LYO
> Kinston NC
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