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WTB: HP-46 9830 / Cherry M61-0100 M71-0100 key switch
03-08-2017, 10:33 AM
Post: #1
WTB: HP-46 9830 / Cherry M61-0100 M71-0100 key switch
Hi:

After some research it appears the key switch in a HP-46 is the same as the HP-9830, which was Cherry part number M61-0100 or M71-0100, pending on age of manufacture. (or similar variant of P/N)

Does anyone happen to have one or two of these they would be willing to part with? Please indicate what you would want for them.

thanks
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03-09-2017, 02:22 AM
Post: #2
RE: WTB: HP-46 9830 / Cherry M61-0100 M71-0100 key switch
Duane,

I found a few of these on ebay a few years ago. I presume you have looked there?

(03-08-2017 10:33 AM)Duane Hess Wrote:  Hi:

After some research it appears the key switch in a HP-46 is the same as the HP-9830, which was Cherry part number M61-0100 or M71-0100, pending on age of manufacture. (or similar variant of P/N)

Does anyone happen to have one or two of these they would be willing to part with? Please indicate what you would want for them.

thanks
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03-09-2017, 02:46 AM (This post was last modified: 03-09-2017 02:46 AM by Mark Hardman.)
Post: #3
RE: WTB: HP-46 9830 / Cherry M61-0100 M71-0100 key switch
(03-08-2017 10:33 AM)Duane Hess Wrote:  Hi:

After some research it appears the key switch in a HP-46 is the same as the HP-9830, which was Cherry part number M61-0100 or M71-0100, pending on age of manufacture. (or similar variant of P/N)

Does anyone happen to have one or two of these they would be willing to part with? Please indicate what you would want for them.

thanks

I have an RFQ for quantity 10 with the following vendor:

Electronic Expediters, Inc.: M61-0100 CHERRY SWITCH,KEYBOARD EE# 753594 DATE-CODE: LOT# 23725

Their site says that they have 67 in stock. I'll let you know what price they come back with.

Mark Hardman

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03-09-2017, 07:02 AM
Post: #4
RE: WTB: HP-46 9830 / Cherry M61-0100 M71-0100 key switch
AJ: Haven't noticed any on e-Bay at the moment. Searched in various ways, but didn't see anything.

Mark: That is very kind of you, please let me know.
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03-10-2017, 02:33 AM
Post: #5
RE: WTB: HP-46 9830 / Cherry M61-0100 M71-0100 key switch
(03-09-2017 07:02 AM)Duane Hess Wrote:  Mark: That is very kind of you, please let me know.

Just received a reply. They are asking only $2.50 each. I'm refurbishing an HP-81 with several bad keys. Thank you for digging out the part numbers!

I now see that you can order from their web site without going through the RFQ process:

http://www.expediters.com/index.jsp?path...art=200258

Grab them before they're gone!

Mark Hardman

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03-10-2017, 07:04 AM
Post: #6
RE: WTB: HP-46 9830 / Cherry M61-0100 M71-0100 key switch
Thanks Mark!

Have you received one in hand? Wondered as the picture does not match a M61; at least not what I have on my 46.

Other recent posts (mentioned above) listed websites where I obtained the numbers and pictures matched my 46. The picture looks like the switch from a 9825(?). Also the later versions of the switch might have been M73-0100 instead of M71-0100; can't find the reference now.

Will inquire with Expediters and try to clear up what they look like. If you get one in, please drop a post whether it works irrespective of its appearance.

thanks.
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03-24-2017, 05:33 AM
Post: #7
RE: WTB: HP-46 9830 / Cherry M61-0100 M71-0100 key switch
Mark H:

Did you happen to order one of the switches & see if they fit?

I sent a note to Expediters & they did not reply; however, the listing disappeared from their web site & came back.

My inquiry pointed out the picture looks like a MX series switch, not a M61 type.

As long as the solder pins are in the same place and size (foot-print and height to key stem (slider)) match a M61, who cares?

Just wondered if you happened to have tried one before I order any. If not, guess I'm the guinea pig.

thanks!
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03-25-2017, 04:41 PM
Post: #8
RE: WTB: HP-46 9830 / Cherry M61-0100 M71-0100 key switch
I'm still waiting for delivery. I will let you know if they are compatible as soon as I have them in hand.

BRG

Mark Hardman

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03-31-2017, 01:17 AM
Post: #9
RE: WTB: HP-46 9830 / Cherry M61-0100 M71-0100 key switch
No joy.

The Cherry M61-0100 switches that I received are not at all the same form factor as the switches used on the HP-81. Even if I could find a way to mount the switch in the HP-81, the key caps do not fit on the stem of the switch.

It was worth the attempt.

Mark Hardman

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