Heater Wiring

[Glowin Plates]

Hi Gang

Is it possible to wire two 12V heaters (12AX7) in parallel in order to use a 6V supply?
Given the supply has ample current.

 

[nigelwright7557]

The 12ax7 has split heaters.
They can be wired as one 12v6 series or two 6v3 parallel.

 

[BigE]

How?

Use Pins 4 and 5 for 12V6, and 9/4 and 9/5 for 6v3? (with 9 as return)?

thanks.

 

[boywonder]

Yes, pins 4&5 for 12.6V, and 4/5 connected together and pin 9 for 6.3V.


TDSL Tube data [12AX7]

 

[nigelwright7557]

Yes, pins 4&5 for 12.6V, and 4/5 connected together and pin 9 for 6.3V.


TDSL Tube data [12AX7]

Yes.