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previous: Paul In a Univox U42, can I substitute t... -- 5/17/2004 2:16 AM View Thread

Re: Can a 6AQ5A be substituted for a 6AQ5?

5/17/2004 2:33 AM
Jon Fleig
Re: Can a 6AQ5A be substituted for a 6AQ5?
Yes, you can substitute a 6AQ5A for a 6AQ5.  
In many cases, the difference between the 'A' version and the plain version is a controlled heater warmup time for use in series heater circuits.  
In other cases, the updated version has one or more uprated specs.  
The Duncan Amps tube datasheet locator is very useful for learning about possible substitutes.  

Richie Or better yet, use 6005 Ri... -- 5/17/2004 9:34 PM