[Vintage-Audio] help with eico st-70 and equalizer connection

[Roy Morgan]

At 11:54 PM 8/23/2002 -0500, you wrote: ...
>ST97 stereo FM tuner which i own. mine needs some work. i am not at all
>impressed with the way it has been performing here. i shudder to think about
>aligning it. any thoughts/tips on how to align a stereo tuner? i hear they 
>are a
>real pain.

Denis,

It's not a pain if you have both the right equipment and an organized approach.

For the stereo decoder, you really need little but the signal from a stereo 
station..that is easy to get nowadays.  A scope helps.

For the RF section and local oscillator, normal alignment techniques work 
fine..

For the FM IF strip, there are a couple of tricks, and for the FM detector, 
a sweeg generator and scope, or an FM signal generator and a distortion 
meter are verey helpful.  Lacking that equipment, you can do a fair job 
with a signal generator and counter,  a voltmeter and some patience.

Roy


Roy Morgan
K1LKY since 1959
7130 Panorama Drive, Derwood MD 20855
301-330-8828 home .... 301-975-3254 work
roy.morgan@nist.gov