EADGBE wrote:
I went to a garage sale recently and couldn't pass up an old Technics
SA series receiver in great condition. (A Technics SA series receiver
was my first bit of halfway decent stereo equipment.)

The SA designation is still used for their receiver line, and has been
since Matsu****a formed the Technics brand. How old is it?

The receiver's FM tuner works great and sounds very good, but I can
only get the "FM Stereo" indicator light to light up on one station,
even though the signal strength meter indicates VERY strong FM signals
on almost every station all across the FM band.

Depends very strongly on where you are, geographically speaking...and
where the receiver is physically located.

I only have one of those little clear-coated two-conductor wire FM
antennas hooked up to it right now, but if I recall correctly, that
was all that was needed to get FM Stereo on virtually every station in
my area.

Those work acceptably in urban settings. If it's hooked up right, and
there are reasonably strong stations within 15-30 miles, you should get
stereo.

Could something be weak in the FM tuner circuitry, or do I need a
stronger antenna?

Depends. Obviously if the gear is old, it could be defective.

And whilst I'm at it, what is the functional difference between the
two 300 ohm FM antenna terminals and the grounded 75 ohm FM antenna
terminal, besides the obvious difference in resistance?

It's not resistance, but impedance...probably beyond a concise
explanation. Suffice to say: hook twinlead (what you have) to the 300
ohm connection and coax (like cable TV lead) otherwise.

jak

Any help would be much appreciated.