[TV MAN]

I would recap it. They don't make those anymore. So, even if you re-sell it on Ebay, you are saving a piece of history at a minimum. I have recapped a couple of signal generators myself with pretty good success. Not too hard. They do the job. They are fairly close, but to be dead on, I use a frequency counter. It wont take you long to learn the settings once you have done this a few times. You can even align the dial or mark it with a piece of tape if it isn't linear. I find my Eico is closer than my Knight, plus it as a smoother waveform output.