[Collins] 75S-3B audio output tube

[Dave Brown]

IIRC the filament current is different but this is not an issue unless 
operating them from an external supply.
The other matters to address have already been mentioned.
DaveB, NZ

----- Original Message ----- 
From: "Jaime Gomez" <jgomez2005 at gmail.com>
To: <collins at mailman.qth.net>
Sent: Saturday, December 13, 2008 10:31 AM
Subject: [Collins] 75S-3B audio output tube


> The output tube (6BF5) in my 75S-3B shorted out, I need to replace 
> it. I
> have been checking some sources but cannot find it. I saw that it is 
> similar
> to the 6AQ5, base connections are the same and the 6AQ5 can use 
> higher plate
> and screen voltages. Can I replace the original 6BF5 with a 6AQ5? 
> Any
> suggestions?
> Thank you, 73,
>
> Jim, HK1N
> Barranquilla, Colombia
> Tel: +57 312 6642680
>


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