On Fri, Aug 29, 2025 at 11:36 PM Fred Cisin via cctalk <[email protected]> wrote: > > >> It's TEAC 55. Only one of those spacers was there. > > On Fri, 29 Aug 2025, Tony Duell via cctalk wrote: > > Another part of your machine that's been swapped out at some point. > > But, arguably a GOOD swap, > The Teac 55 (55B?) is a good drive.
There are many versions of the Teac FD55B which seem to share only similar model numbers and specifications. Some are better than others. > The Qumetrak 142 (5155 and PC/Jr) is not. > > I had almost as many failures with it as with the BASF 2/3 height drive. What failed? I've had the ones in my 5155 totally apart and they don't seem difficult to repair. Electronic faults should be easier to fix than those on the Teac due to the latter's use of custom ICs. > > The Qumetrah 142 is SLOW steppoing track to track. Slow enough that one > of the reasons ihat IBM released 2.10 included setting a longer track to > track time According to the Techref, it's 6ms step time, which seems reasonable. And I have verified (using a drive exerciser) that the ones in my 5155 will do that. -tony
