[Penthode]

There isn't much difference in the alignment between the 8ts30 and 9t240. Both are split sound sets. The main difference is the sound takeoff is from the tuner in the 8ts30 and after the 2nd vif in the 9t240. It is not so much having the sweep generator for 21.25MHz. It is the accuracy of the frequency.

In a split sound set, you must tune for best sound with the operational fine tuning control. This means the sound carrier must be precisely set for correct fm sound demodulation and the video carrier must sit exactly 4.5MHz away at the 50% on the response slope to achieve optimum picture and sound. You can only obtain this adequately by sweep alignment.

As for the tools, when I was younger I had no money for test equipment. I used a standard fixed frequency signal generator for the sweep marker I calibrated off of WWV and other sources. The sweep generator was $2 and the scope was free. Of course some repair was required but once I was assured it was working well enough, the alignment was a snap. And I can assure you as best as you can compromise in trying to get sound and picture, the difference between this and a properly aligned set is like night and day!

But first I am curious: when you fine tune your 8ts30, as you rotate the fine tuning knob from on side to the other, you should start out with weak distorted or no sound. As you continue to rotate the knob, the sound gets louder then dips to nothing and then as you continue rotating, a point will be reached where the sound is clear and loud. Further rotation will hit another dip or null and the sound will reappear quieter and a bit distorted. As you continue to rotate the knob the distorted sound will diminish.

Where the sound is clear and loud between the two dips is the point where the picture is the sharpest. Note where the picture is sharpest is not the brightest as the video if carrier will be at the 50% point on the response slope. This is how all split sound set tune and operate. The later intercarrier sets tuning was for best picture because the sound was always present with the fixed intercarrier 4.5MHz sound if.