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ICOM IC-729 small HF76m Rig:

Old small HF radio, with rather nice performance. The unexspected clean TX audio made me try to use it for ESSB. I bought an Inrad 2.8KHz filter (#123) for the 9 MHz IF and replaced the original 2.4KHz filter. This gave me much better audio quality on RX and TX.
I feed the TX audio into the ACC input in the backside of the rig.

Since the RX is a bit wide for crowdy HF SSB operations, I adjust the PBT and combine this with an external DSP unit from JPS (NIR-12) and this works very well. (Maybe I find a way to switch in the narrow filter again later.)

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Here is the INRAD filter about to be installed in the IC-729. It must be conected with coax wires, and mounted in back of the front panel. Click on the picture to get a bigger version.