I have two RX01 drives ... the two boards *inside* an RX01 drive have an Mxxxx number too! They are listed in the Field Guide: M7726 and M7727. - Henk, PA8PDP. -----Original Message----- From: cctalk-bounces at classiccmp.org To: General Discussion: On-Topic and Off-Topic Posts Sent: 5-4-2005 20:50 Subject: Re: rx01 w/o controller board Brad wrote: I bid on an RX01 on ebay, hoping it had a controller card. Naturally it's Naturally card I'm completely confused. You have a controller card? Or you don't? If you have one, surely you don't need one? Or are you saying that you need one for a different bus? Or is your drive missing the drive electronics, which is the real controller (vs. the Mxxxx "controllers", which are really just host adapters)? The "controllers" (host adapters) are: Unibus Qbus Omnibus ----------- ----------- ---------- RX01 RX11 M7846 RXV11 M7946 RX8E M8357 RX02 RX211 M8256 RXV21 M8029 RX28 M8357 (Note that the RX8E and RX28 are exactly the same module.) Eric