Help with Paraphase + Tremolo

[hylaphone]

Hi folks,
This might be a goofy project so I hope you'll bear with me... if need be I'll hand draw a schematic and take a picture of that.
I've built something similar to the 5C5 Pro, and am trying to inject Tremolo at the 6L6 grids.

The Intensity pot wiper feeds the 6.8K/250K junction (grounded on the 5C5 schematic), bottom of pot to ground. Problem is, with the depth down I get no signal out of the 6.8K side of the PI.
Turn the depth up, and that tremolo-ing signal dwarfs that of the 250k side of the PI.
Is this paraphase incompatible with what I'm trying to do?
I did try the 5e9a approach but didn't care for the sound.. would rather wiggle the power tube bias.
Thank you --

[Dave H]

Turn the depth up, and that tremolo-ing signal dwarfs that of the 250k side of the PI.
Is this paraphase incompatible with what I'm trying to do?

Yes, I think it is incompatible. Looking at the 5C5 schematic the termolo-ing signal of the top triode in inverted by the bottom triode and is cancelling out the tremolo applied to the bottom triode plate.

[hylaphone]

How does this approach avoid the phase cancelling? I don't understand the circuit:

[d95err]

How does this approach avoid the phase cancelling? I don't understand the circuit:
[ATTACH=CONFIG]42686[/ATTACH]

The bias resistors where the tremolo signal is injected is isolated from the paraphase voltage divider with an additional set of coupling caps. Therefore, there is no cancellation.

[hylaphone]

Ah I see it now, thank you.
I tacked this PI in and it works pretty good, fairly balanced even.
May try 6SL7 LTPI for sh*ts and giggles too
Thanks again for the insight