P/P Parallel 6V6 Driver

[W9ZSL]

Just scored an NOS Stancor A-4762 15 watt driver iron on eBag.  Should work well with this circuit which I've discussed before.  Should be good for at least 10 watts...more than enough to drive a pair of 811A's when substituted for the Merit iron shown in the diagram.  Comments?

[W7TFO]

I don't see any parallel going on in that schematic...

73DG

[W9ZSL]

So what is it then?  Not that it matters.

[KA2DZT]

Push-pull 6V6 driver.  P/P parallel would be four 6V6s

[Opcom]

It would not hurt to use four 6V6s if the A-4764 transformer can take the current from them. It would probably help the drive regulation.

[W3RSW]

Probably just minor confusion when quick glancing at the diagram. The  6sj7 phase inverters appear to be in parallel with the 6v6's. 

My first thought was it was ZSL's intention to add two more 6v6's and understood.
We seem to parse everything to death.

[N2DTS]

Could you not just use a pair of 6l6's instead of four 6v6's?

It would not hurt to use four 6V6s if the A-4764 transformer can take the current from them. It would probably help the drive regulation.

[KA2DZT]

I drive my 811As with a single 6L6 using a 25W mod xfmr and a lot of feedback.  Works FB and I have plenty of audio.  I used my own design.

[VE3LYX]

Internal resistance (in parallel are less then any single in the parallel set.) One big tube can raise this and it is of no real concern in most situations however when series cathode modulating old cathode keyed rigs on an existing PS(and I realize you are not)one has all the sudden the AH HA moment when you realize that is why. Previous to that moment I never understood why either. Voltage drop across the tube/s is what I was fighting. It was not apparent to me before this experience.  
don

[W9ZSL]

I could consider 6L6's but the driver transformer is just 15 watts.  The circuit with the 6V6's is good for 12 watts.  Since I have a couple 6V6's, I'll try that first.  I'd really have to loaf 6L6's to not overload the iron.