RK05 and hard disk filters

Now moving the topic from Zip drives to RK05's: In an earlier message Hans Franke wrote: Well they (RK05's) don't use them much... I did service on a pair of RK05's in a Tektronics chip test unit that were installed and running (and under DEC Service) with the filters still CAPPED by the idiot who was the service tech there before me. (I was the next idiot, I don't know who Compaq's got as the current idiot.) 8-) They were still working 6 months to a year after the capped filter install which was probably the PM prior to my arrival on site. The RK05's were running VERY hot, but still running without errors (even under diags). Man, you couldn't kill those RK05's. I hit a head with a 1/4 inch bend on a disk and it kept running after I scraped the head with a penknife and alcohol to remove the scarred oxide. They flew those heads at about 10000 feet compared to the current disks. Now, 9766's (RM05's) flew a lot closer (even with the DEC high altitude heads installed). They needed to be kept clean. RP06's were less touchy and RM03's were just a nightmare. Give me tape drives (even TS11's and Tu45's) to work on over disks anytime. They don't get you up at 3am for a tape head crash. Bill