Used Dimarzio pickups. One is a DP153 FRED, and the other has no number, so I'm not sure which Dimarzio it is. I purchased them around 1990, and installed them in a Hamer Special. I used these pickups for about 20 years, and they always worked and sounded great. I checked the ohm readings, and I'm measuring 9.6K on the DP153 FRED, and 8.5K on the no number.