PDP-11 Memory

[Bill Gunshannon]

On 1/12/19 12:29 PM, Pete Turnbull via cctalk wrote:
> On 12/01/2019 01:24, Zane Healy via cctalk wrote:
> 
>> I’m pretty sure you could get the /23+, /53, /73, /83, and /93 in 
>> either a BA23 or a BA123.  I have an actual badged BA23 pedestal for 
>> my /23+.
> 
> I'm fairly certain all microPDP-11/23+ systems were only sold in BA23 
> boxes, and I think microPDP-11/73 and the later, cheaper, cut-down 11/53 
> were as well.  But almost all the 11/83 systems I've ever seen were in 
> BA123 boxes, though they did sell some in BA23 pedestals - I've got one.
> 

One confusing part of this.  Everything I have read today
seems to say that the only difference between the 11/73
and the 11/83 in a MicroPDP-11 was the memory used.
QBUS = 11/73
PMI = 11/83

Is this correct or not?

bill