[TenTec] Hiss and click on Orion sidetone

[Joe W2KJ]

Howdy folks:

Just got my Orion after an interminable wait and finally read
enough to put it on the air.

I notice a "hiss" and a "click" on the sidetone when each
character is keyed.

I am using the Heil Micro-pro headset and have tried other
headsets of varying impedance to no avail.

The sidetone through the speaker is pure with no clicks/hiss.

Does anyone else notice these problems when keying their Orion
in CW when using a headset????

                                            73, Joe W2KJ