TRS-80 Model 16

Chuck Guzis cclist at
Sun Nov 23 19:25:12 CST 2014

On 11/23/2014 04:33 PM, Jason T wrote:
> On Sun, Nov 23, 2014 at 5:41 PM, Chuck Guzis <cclist at> wrote:
>> Are you handy with a soldering iron?  The model 16 floppy controller has
>> pads for a 34-position header that, with a few small jumpers can be
>> connected to a 3.5" HD (1.44M) drive.  If you've got a legacy PC with a
> Never knew that about the 16.  Is that the case with the 2 and/or 12 also?

It depends on the controller--there were at least two styles; one has an 
unpopulated 34-position spot on the board--that's the one that seems to 
be in most model 16s.

The jumpers mostly handle the missing "ready" line issue and allow for 
"DS1" on the drive instead of "DS0", so you can take an unvarnished 
configured-for-PC drive and use that.

FWIW, a 5.25" 96tpi HD ("1.2M") drive will work just as well.


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