Thanks for the great feedback... yes, that is the design I used initially and modified to double the output channels. I designed the board myself but yes, the circuit is derived from the one in your link. I think I got it exactly the same as their circuit other than splitting the RF signal into two paths (one for each op-amp), maintaining the 50 ohm impedance by going thru two 24 ohm resistors for each path, and splitting the supply voltage in parallel, one to each op-amp. Those are the only two changes from the original circuit. I will go back thru and double-check everything to be sure. I am sure the op-amps are connected the right way and I am also sure my supply is ok. I checked it and it's outputting 12v to the 9V LVR. When powered up, it was outputting 12V and drawing 0.35A which is too much for the design as intended. I didn't check the pin 4 output as I immediately disconnected power when I noticed how hot the op-amps were getting. They are $7US a pop and I really didn't want to fry them by taking any time to try to troubleshoot the circuit.
As mentioned above, you have also removed the bias from the non-inverting pins.
To prevent any further damage to both chips, I would work on just one at a time. Remove the supply from one of them, either by cutting the track from the supply, or desoldering & lifting pin 4. Then short out the 0.1uF capacitor that connects pins 3,5,10 & 12 to the 24R resistor on the other chip to restore the bias. Assuming the non-inverting inputs draw almost zero current, then you should see 1.7v on those pins.
Check the supply voltage by putting your multimeter probe on pin 4 before you switch on to minimise the time it's switched on in case it's still drawing too much current. According to the data sheet, the maximum supply voltage should be 11v. I'm wondering if there may be a problem with your 9v regulator circuit.
EDIT...actually, on second thoughts, I would remove the supply to
both chips & check the regulator first.