Weird old dual op chip LM1303 'stereo preamp' 14 pin chip.

[sean k]

I was given an ol' mic pre years ago, crystasound 6C mixer, which I finally opened up last night and I found a bunch of LM1303 chips in it. After doing a little search all I can see is that it is used a dual opamp but on the datasheet it has lag inputs and outputs which I don't understand.
http://www.datasheet4u.com/html/L/M/1/LM1303_NationalSemiconductor.pdf.html

In most references to its uses the lag ins and out are noted as NC but in the circuit I have the is a .01 cap between the lag inputs, which are just listed without + or -, but nothing connected to the lag outs.

Any ideas about what this lag does? To me lag is slightly behind and the chip is specified in the data sheet as a stereo preamp as opposed to a dual opamp so I'm hoping this lag feature might evn be a way to simulate stereo in the sense of slight delay. Who knows.

I suppose it may be coincidence that the last thing I opened up was a yamaha keyboard that had a MN3102 and MN3206 set of chips for a psuedo stereo effect and I'm kinda wondering whether this was the case with the LM1303 and its 'lag' inputs and output.