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HP8753E, 8753D, 8753ES 3.5" disk drive replacement reference information

 

These go bad over time.? Often they will give a little warning and be "flakey" for a while before they fail catestrophically.? While there are other good options to save data via GPIB, etc., here is some information for those who wish to keep your drives functional.?
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Here are the original part numbers as far as I have been able to determine:
HP8753D:? FD-05HF 240, Teak, PN: 19307522-40.? HP part number 0950-2348.

HP8753E:? FD-04HF 2304, Teak PN: 19308023-04.?

HP8753ES:? FD-05HF 5630, Teak, PN: 19307556-30.

HP8753ES:? FD-05HG 5701, Teak, PN: 19307557-01.

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Prices for these original drives tend to hover around $100, though sometimes they are as low as about $30
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Suitable generic replacements:
FD3238H (NEC) (narrow, spacer required on side if used with the D or E)
MPF820 (sony) (narrow, spacer required on side if used with the D or E)
MPF720-3 (sony) (narrow, spacer required on side if used with D or E)
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Prices for these replacement drives tend to be around $20, but are sometimes less.? The side eject button on the 8753D is relatively rare if you do not use the original part number.? Grey is also rare as most of the replacement drives are black.
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Please add additional details, options for replacements, etc., in the comments.
 

Great information!
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Should the original brand have been spelled "Teac"?? Letter C instead of a K
 

Indeed good info, however I'm going for a $50 Gotek USB drive instead.
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Best regards
Marcus
 

Should the original brand have been spelled "Teac"??
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Teac didnt name their company after wood ;)
 

I will second Marcus, I too have the GoTek, and its been bullet proof over the last three years on my 8753E
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v/r,
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Rich?
 

Yes, my spelling sucks, that's on me.? As a bonus, I can misspell things in at least 3 languages.
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Rich - I am a little confused regarding the GoTek options.? I am seeing lots of these drives on epay, but all of the ones I am seeing have a different interface at the back of the unit (i.e. not plug and play) and in general are a larger drive size (i.e. won't fit in the slot which is 12.5 x 101.5 x 130 mm).? What am I missing?? Is there a commercial GoTek option which can be easily adapted to these machines or is modification required?
 

On Tue, Dec 10, 2024 at 03:48 PM, Scott Vance wrote:
Yes, my spelling sucks, that's on me.? As a bonus, I can misspell things in at least 3 languages.
Excellent! Better than not mispelling in only one!
Renaud
 

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Glad I am not the only one with similar issue....LOL
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On 12/10/24 7:23 AM, Renaud F5ZR via groups.io wrote:

On Tue, Dec 10, 2024 at 03:48 PM, Scott Vance wrote:
Yes, my spelling sucks, that's on me.? As a bonus, I can misspell things in at least 3 languages.
Excellent! Better than not mispelling in only one!
Renaud
 

Scott,
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you are correct, the Gotek drives I've bought are 25mm high so I have to remove the encoder button, replace the screen with a smaller one, 0.91" 128x32 OLED and 3D print a new case. I also re-soldered one thru hole electrolytic capacitor to be able to tilt it. Maybe I should have ordered PCB:s and components instead and done a scratch build.
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I have not yet looked into the rear interface connection but I plan upgrading my HP8753D over the holidays.
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I'll send updates to this thread.
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Best regards
Marcus
 

Marcus and all who are thinking of a Gotek, why not use this:
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I have no idea if it really works. It doesn't seem to require any redesigning. Has anyone here tried it?
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Vladan
 

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For small outline drive replacements have a look at this


I use one of these in my Agilent 54641D MSO.?

Wilko

 

On 12/10/24 15:19, Marcus Gustafsson via groups.io wrote:
the Gotek drives I've bought are 25mm high so I have to remove the encoder button, replace the screen with a smaller one, 0.91" 128x32 OLED and 3D print a new case.


$27 +3.4 = 30.4 USD

 

I think that you all are on the right track here.? Gotek makes a model which fits available in various places:
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1)? ebay - confirmed compatibility by seller (thanks Vladan) for $120: https://www.ebay.com/itm/333459123742?epid=20028560258&hash=item4da3b66e1e:g:QjsAAOSwcABeCbYb
2)? Amazon - Appears to be the same, but not confirmed for $70: ?
3)? On Gotek site (but minimum quantity for orders is 10 pcs.? Price unknown: ?
4)? On aliexpress (Thanks John) - about $40:? Please note - there are two versions - one which is for 1.44 MB and another which is for 720 KB.? I believe that only the former (1.44 MB) will work (but am not 100% sure - kind of like spelling Teak):? Search for SFR1M44-DU26 GOTEK USB DRIVE.
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I am tempted to order one on aliexpress to see if they work better than my spell-checker.
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Scott, there is a chance that the ebay seller is making some firmware changes to the standard SFR1M44-DU26 GoTek emulator.
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Vladan

 

Vladan,
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Evidently the SW on this SFR1M44-DU26 kind of sucks and may not work with some machines.? People online claim that something called Flashfloppy [] works a lot better.? However, it's a tad tricky to get this installed on the drives.? There are some decent instructions here [] about half way down the page.? Perhaps the seller on ebay went throught the process of installing flashfloppy on a number of drives and then sold them at for $120 rather than the normal price of $40???? I suppose that after the ebay fees you would make about $50/unit.? If you modified a bunch of these you could probably modify a unit in 30 minutes or less?? That's a lot of assumptions on my part.

 

Scott, it looks like you are correct. Here is a detail from one of the pictures in the ebay listing.
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V.
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For those who would like to replace a broken FD in the 8753ES, here is some information I found in my files. I have replaced several of the Teac floppy drives over the years. I found my notes, no guarantee that the information is entirely correct. It appears to me that all Teac FD-05HF drives are pretty much the same thing except for things like bezels and doors. Variants can be black with a blue eject button, or various shades of gray and beige. On the 8753ES and E, there is also a plastic filler part which is not part of the FD. The 8753D may be different. There are also versions which are configured differently at the Teac factory, but that may be something anyone can do. So, I think those numbers and letters after FD-05HF refer to plastic parts and possibly some configuration setting, perhaps a jumper - I don't recall if there is one.
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There is also a family of drives called FD-05HG. As far as I could determine, the HG version is a superset of the FD-05HF. One difference is that the HG can be configured for 300 or 360 RPM. This is done with a jumper, pin 13.
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For those who are replacing the FD with an emulator, make sure that the emulator can be used to back up the EEPROM and also for loading the firmware.
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I also found a list of HP products which used the Teac FD. It looks like I got this off the HP/A/K parts finder page.
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Vladan
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Products using part 0950-2782 (8753ES)
? ? 1660E
? ? 1660EP
? ? 1660ES
? ? 1661E
? ? 1661EP
? ? 1661ES
? ? 1662E
? ? 1662EP
? ? 1662ES
? ? 1663E
? ? 1663EP
? ? 1663ES
? ? 16700B
? ? 16701B
? ? 16702B
? ? 1670E
? ? 1670G
? ? 1671E
? ? 1671G
? ? 1672E
? ? 1672G
? ? 1673G
? ? 1680A
? ? 1680AD
? ? 4156B
? ? 4287A
? ? 54621A
? ? 54621A-003
? ? 54621D
? ? 54621D-003
? ? 54622A
? ? 54622A-003
? ? 54622D
? ? 54622D-003
? ? 54624A
? ? 54624A-003
? ? 54835A
? ? 54853A
? ? 54854A
? ? 54855A
? ? 8164A
? ? 8164B
? ? 84105EM
? ? 85070M
? ? 8510C
? ? 85301B
? ? 86037A
? ? 86037B
? ? 86037C
? ? 86082A
? ? 86121A
? ? 86140A
? ? 86140B
? ? 86141B
? ? 86142A
? ? 86143A
? ? 86143B
? ? 86144B
? ? 86145A
? ? 86145B
? ? 8702D
? ? 8702E
? ? 8719D
? ? 8719ES
? ? 8719ET
? ? 8720D
? ? 8720ES
? ? 8720ET
? ? 8722D
? ? 8722ES
? ? 8722ET
? ? 8753D
? ? 8753E
? ? 8753ES
? ? 8753ET
? ? E4401B
? ? E4402B
? ? E4403B
? ? E4404B
? ? E4405B
? ? E4406A
? ? E4407B
? ? E4407S
? ? E4408B
? ? E4411B
? ? E4440A
? ? E4991A
? ? E5100A
? ? E5100B
? ? E5501A
? ? E5501B
? ? E5502B
? ? E5503A
? ? E5503B
? ? E5504A
? ? E5504B
? ? E6000C
? ? E6001A
? ? E6002A
? ? E6004A
? ? E6020A
? ? E7401A
? ? E7402A
? ? E7403A
? ? E7404A
? ? E7405A
? ? E8356A
? ? E8357A
? ? E8358A
? ? E8361A
? ? E8361AH17
? ? E8362A
? ? E8362B
? ? E8363A
? ? E8363B
? ? E8364A
? ? E8364B
? ? E8801A
? ? E8802A
? ? E8803A
? ? N1881A-E22
? ? N1881A-E23
? ? N1881A-E29
? ? N3381A
? ? N3382A
? ? N3383A
? ? N4901B
? ? N4902B
? ? N4903A
? ? N4906B
? ? N5230A
? ? N8972A
? ? N8973A
? ? N8974A
? ? N8975A
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My two Aliexpress "Gotek" drives came with latest release of the FlashFloppy fw.
/Marcus

 

A lot of thanks for all that very useful compilation Vladan!
Renaud

 

Slight correction regarding Vladan's comment:
On the 8753ES and E, there is also a plastic filler part which is not part of the FD. The 8753D may be different.
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This is absolutely correct for the 8753ES, but not for the 8753E which has the same physically wider design as the 8753D.? The difference between the original drive on the D and the E is the button position and type for the eject mechanism.? As noted, the holder (metal exterior mounting hardware) for the ES is narrower and will not fit these new Gotek drives without modification, but this is not an issue for the 8753D and 8753E models.? The 8753E holder can be mounted in the 8753ES if you want to use one of these to mount a Gotek drive into an 8753ES without physically modifying the drive.
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