Portable color sets from the sixties

[andy]

I just found yet another portacolor at the side of the road near my house on my way home today. It's in pretty good shape apart from the broken shafts to the clock/sleep timer. Any idea wht kind of knobs it would have had? What remains of the shafts is the same size as a a typical volume pot shaft. I'm thinking it may have had the same type of knobs as the volume, color,... knobs. It also seems to be just a clock and sleep timer with no alarm or on timer function. It's model WM229HWD-3 and has a 1969 date code on the CRT. It worked as I found it, but the tuner and controls need to be cleaned. I also can't completely get rid of the green raster; hopefully it's a probelm with the green video circuit and not the CRT. If it is the CRT, I might cannibalize my mid 70's porta-color since this is a nicer set. It's the first portacolor I've had that didn't have a constant buzz in the audio. GE must have made millions of these!