[Coco] FD-502 dual drive system on eBay (not mine)

[Retro Canada]

up to fd501 they all use standard 5 1/4 molex and for fd502 the 3 1/2 connector. i have 3 units a white full height, a fd501 and fd502. in both fds i put a 1.44 3 1/2 as ds0. i dont like 5 1/2.

my full height is misaligned. even if i manage to fix the head it will misalign again.

On 2013-09-16, at 6:19 PM, Christopher Smith <csmith at wolfram.com> wrote:

That's interesting... what is the power supply connector now?

Chris

----- Original Message -----
> From: "Retro Canada" <retrocanada76 at gmail.com>
> To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
> Cc: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
> Sent: Monday, September 16, 2013 4:51:10 PM
> Subject: Re: [Coco] FD-502 dual drive system on eBay (not mine)
> 
> i am talking about the full height unity to put half drives.
> 
> On 2013-09-16, at 5:46 PM, Sean <badfrog at gmail.com> wrote:
> 
> I put a non-Tandy drive in my old FT-502 case and it fit perfectly
> back in
> the day.  I think I just had to change the power connector to a molex
> one.
> 
> 
> On Mon, Sep 16, 2013 at 3:16 PM, Luis Antoniosi (CoCoDemus) <
> retrocanada76 at gmail.com> wrote:
> 
>> you will need to drill new holes on it since they don't match.
>> 
>> 
>> On Mon, Sep 16, 2013 at 4:15 PM, Christopher Smith
>> <csmith at wolfram.com
>>> wrote:
>> 
>>> Excellent, so it looks like I may be able to make a simple
>>> conversion
>> from
>>> one of the full-height units, then.  I'll just have to keep an eye
>>> out
>> for
>>> a half-height, DS/DD drive.  The second drive would probably be
>>> the
>>> quad-density one that I have currently.  I suppose I should start
>>> looking
>>> at how to swap drive IDs as well.
>>> 
>>> Chris
>>> 
>>> ----- Original Message -----
>>>> From: "Rogelio Perea" <os9dude at gmail.com>
>>>> To: "CoCoList for Color Computer Enthusiasts"
>>>> <coco at maltedmedia.com>
>>>> Sent: Monday, September 16, 2013 2:52:53 PM
>>>> Subject: Re: [Coco] FD-502 dual drive system on eBay (not mine)
>>>> 
>>>> On Mon, Sep 16, 2013, Christopher Smith wrote:
>>>> 
>>>> I do wish people didn't pay nearly so much for those two drive
>>>> things.
>>>>> Honestly, I've begun to wonder whether I could convert one of
>>>>> the
>>>>> single
>>>>> drive boxes to hold two half-height drives.  Not sure if they'd
>>>>> mount
>>>>> properly in the case, and have no idea whether the power supply
>>>>> would be
>>>>> sufficient.
>>>> 
>>>> I added a second drive to my FD-502 years ago (20+) and did not
>>>> install the
>>>> fan as suggested in the user manual; had the system in close
>>>> observation
>>>> for a while and even under heavy disk usage (OS9L2) the power
>>>> supply
>>>> never
>>>> defaulted, and it is still rock solid to this day. That FD-502 I
>>>> use
>>>> exclusively on my CoCo 3 setup.
>>>> 
>>>> A little bit more than a year ago I upgraded my CoCo 1's 26-3029
>>>> disk
>>>> system (prior model before the FD-500): drive was a full height
>>>> device
>>>> mounted on a corresponding case - took the original drive out and
>>>> replaced
>>>> it with two TEAC FD-55 half-height drives, they sat nicely on the
>>>> case -
>>>> only had to drill a couple of mounting holes on the bottom to
>>>> secure
>>>> the
>>>> drives inside. The full height case's power supply is a no frills
>>>> linear
>>>> one, again as with my first days with the upgraded FD-502, after
>>>> hooking up
>>>> both drives to it I kept a close eye on the power demands, play
>>>> tested with
>>>> OS9L1 to my heart's content and not a single problem crept in - I
>>>> did
>>>> put a
>>>> fresh helping of heat sink silicone grease on the power regulator
>>>> before
>>>> hooking up the drives, power supply runs warm to the touch but
>>>> nothing
>>>> beyond the ordinary.
>>>> 
>>>> Newer drives will have less power demands than older units, that
>>>> has
>>>> to
>>>> account for my problem free experiences with the disk system
>>>> upgrades
>>>> noted
>>>> above.
>>>> 
>>>> -- RP
>>>> 
>>>> --
>>>> Coco mailing list
>>>> Coco at maltedmedia.com
>>>> http://five.pairlist.net/mailman/listinfo/coco
>>> 
>>> --
>>> Christopher Smith
>>> Systems Engineer, Wolfram Research
>>> 
>>> --
>>> Coco mailing list
>>> Coco at maltedmedia.com
>>> http://five.pairlist.net/mailman/listinfo/coco
>> 
>> 
>> 
>> --
>> Long live the CoCo
>> 
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-- 
Christopher Smith
Systems Engineer, Wolfram Research

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