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TR3 - Using two 6JB6's and one 12JB6

 

I read somewhere that you can install two 6JB6's (cheaper)

with their filaments in series, and then just use one 12JB6 -

in a TR3.

Has anyone tried this, successfully?

Thanks,

David KD4E
 

That will work.?
 

David

I am no expert, but be aware that you will be using twice the heater current.? Your transformer would ot mind - but it depends what else is in the circuit.? I suspect probably nothing since indicator bulbs would be on 6 volts.? But where would you put the other 6JB6?

Nigel

On Mon, Mar 31, 2025 at 2:53?PM Jim VE7RF via <jim.thom=[email protected]> wrote:
That will work.?

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