Centralab pot dating
Very smooth taper up until about 8, from there the ramp becomes much steeper going to 10. -- I luv'em ) I did a bit of measuring at midway point on pot travel recently and found most TVT style pots were 17- 18% taper , ie nothing like vintage. Turn down to 8 and it's like switching off a distortion pedal.
Tried Di Marzio and Crazyparts but both were at that value, Di Marzio has a looser feel tho. They are smoother than others but still retain that steep increase on the open end. And from there on down is a gradual lessening of the volume. My entire playing style revolves around being able to clean up by turning down the volume.
I did some searching and the amount of new replacement parts and the opinions is a bit overwhelming. Retrospec's new True Vintage LP Control Kit includes 4 Retrospec custom CTS "True Vintage Taper" (TVT) 500K pots, 2 Luxe .022/400V "Bumblebee" capacitors, and 2 strips of vintage correct ground wire.
Interesting to note, that Gibson parted ways with CTS in '95ish..ending a 30 year or so relationship.started using the Gibson marked ones..wonder what caused the Gibson/CTS split? It must be part of the manufacturing of modern pots. 30% taper seems the way to go, not far off the dreaded 50 LIN taper ( the hated pots !!
From what I've learned, the Centralabs had lead mixed into the carbon track.
Don't know the percentage, but it was enough to add lubricity and longevity to the final product. In my opinion, while they can get the taper very close, it's still not exact, and these new pots will have more lower midrange. All this clicked into place when I added an original Centralab harness with real Bees to my Historic Makeover.
They start making sound right away don't have a number and half of no sound when you first start turning them and they go up gradual with the big bump from 8 to 10. Ed, after messing with this forever I've finally settled on Di Marzio branded pots. I've used some 50s PIO Sprague caps instead of the Russian caps that come with the set, but feeling (and sound-) wise, these are pretty awesome (albeit a tad expensive for what it actually is ...). They have the CTS Superpots for volume and the audio taper for tone.
I'm not sure who the manufacturer is but they have the shaft showing through the bottom of the can and I think Fender has used them in the past or maybe still is. I've put them in a couple guitars since getting my '61 ES 345 and they match the old pots in there pretty much to a T. say, though, that his solder shield literally went up in flames when I touched it with the soldering iron Never used that thing again ... There custom made pio caps are the bee's knees as well.
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They start making sound right away don't have a number and half of no sound when you first start turning them and they go up gradual with the big bump from 8 to 10. I should say that I have Kim's Retrospec pots in another Les Paul and they're fine, too. I have used these spiffy components for years and been blown away by them. Cool, i knew there were both Dimarzio and CTS versions..