[TenTec] TT 234

[Rick Dougherty NQ4I]

I recently aquired a couple of the TT234 speech processors...and they seem
nice...but I cannot seem to get it working in the processing mode...here is
the setup...a Heil HC4 headset plugged into the front  of the TT234..the
TT234 output plugged into a MicroHam MicroKeyer...and its output plugged
into the Orion's microphone jack...when I turn on the TT234..there is no
change in audio and I cannot get any blinking led on the 234...will this
combo work?/...I have a TT715 and it works fine with my Orion's....figured
that the TT234 would also..thanks in advance..de Rick NQ4I