[Reece]

You can do this aurally. Pull the radio's oscillator tube so it won't interfere with the signal generator Set the SG to the proper IF frequency of the radio and just lay the cable from the SG near the IF tube. The SG should be set to produce a modulated signal, with a tone. You want a weak signal so AVC doesn't kick in. Weak signals allow sharpest tuning peaks. Adjust the last IF transformer for strongest signal. Then move the cable near to the bottom of the first IF transformer and repeat. If the signal is too strong turn down the SG output and/or move the cable a little farther away.

After you've peaked both IF transformers, weaken the signal and peak again. Then shut off the SG and plug the oscillator tube back in and see if the dial lines up and tunes properly. You can tweak the oscillator and antenna trimmers on the tuning cap as per any alignment.

If you haven't played with a SG before you might want to experiment with it "broadcasting" at different spots on the AM band and see how the controls work to vary the signal. The SG is just a mini transmitter. I often find I don't need a direct connection to a radio as just having the SG cable in the vicinity is enough.