Fw: [TenTec] Clear Speech Unit

[Allan H. Kaplan]

Installation of the Radio Shack output transformer, #273-1380, as W2GCX
describes, is a good fix for any application driving a load with over a
few hundred ohms impedance.  I am quite surprised that   "Earphones or a
small speaker work exceptionally well (much more audio)"   through the
transformer.   I would expect these low impedance loads to be
transformed to VERY low impedance at the audio amplifier IC.  Pushing
the AF Gain to high output might then overload the IC and damage or
distortion might result at high output with a low impedance load on the
transformer.   Within those limits it is a good fix.
Allan, W1AEL
One of the hams at Ten-Tec.