Help with apex 460 mod wiring (tubes)

funkymonksf · Oct 14, 2011

I'm unsure how if at all I should wire pin 5 of the 6072 tube. Below is the modded schematic. Any help is appreciated.

Thanks ,
Brice

http://www.vertigesproductions.com/diy/Apex460_CEK-12_schematic_modded%2001.jpg

Matador · Oct 14, 2011

funkymonksf said:
I'm unsure how if at all I should wire pin 5 of the 6072 tube. Below is the modded schematic. Any help is appreciated.

Thanks ,
Brice

http://www.vertigesproductions.com/diy/Apex460_CEK-12_schematic_modded%2001.jpg

Heaters are in parallel. Pins 4 and 5 should be connected to the 6V heater voltage coming from the cable. Pin 9 is ground.

MagnetoSound · Oct 14, 2011

No need to wire pin 5. You're not using that triode, why waste the current?

You can always ground it if it makes you feel better.

Matador · Oct 14, 2011

MagnetoSound said:
No need to wire pin 5. You're not using that triode, why waste the current?

You can always ground it if it makes you feel better.

Ahh yes, MagnetoSound is correct: I thought this was the stock circuit with the cathode follower in place.

funkymonksf · Oct 15, 2011

Thanks alot for your help! Now to turn on the iron!

Help with apex 460 mod wiring (tubes)

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