[FS] Sega Trackball pcb 837-8586 reproduction

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Kold666
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[FS] Sega Trackball pcb 837-8586 reproduction

Post by Kold666 » November 8th, 2019, 6:10 pm

I made a reproduction of the System 16 / System 32 trackball interface for use with some games like Sega Sonic, SDI, Dunk Shot, Where is Wally

Form factor is taken from the System 32 version but you can plug without problems on the system16 / 18

There are a couple of improvements such as separate connectors for each players in addition to the standard 26 pins connector and the support for 4 players which is a feature of the System16 version ( Dunk Shot).
I put also an optional LED just for fun ;)

You need few components: some resistors and caps, 1x 74ls02, 1x 74ls138 and the UPD4701 encoder which you can find from utsource for few dollars.
I Will give the BOM to the purchasers.

Since each UPD4701 handles one player, if you plan to play alone or in two, you can buy only the quantity of this IC for your needs.

Price for the naked pcb ( not assembled ) is 15 euros + shipping.

I have made already a couple of batches already gone but if I get enough requests I can order a new batch soon.

Image

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Last edited by Kold666 on February 14th, 2020, 6:09 pm, edited 1 time in total.

Kold666
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Joined: June 3rd, 2016, 11:13 am
Location: Italy
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Re: [FS] Sega Trackball pcb 837-8586 reproduction

Post by Kold666 » November 26th, 2019, 2:30 pm

2 pieces available

battlesmurf
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Re: [FS] Sega Trackball pcb 837-8586 reproduction

Post by battlesmurf » November 28th, 2019, 1:05 am

I'll snatch one. Thanks!

Kold666
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Re: [FS] Sega Trackball pcb 837-8586 reproduction

Post by Kold666 » December 2nd, 2019, 8:25 am

I have the last one available if anyone is interested

Kold666
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Re: [FS] Sega Trackball pcb 837-8586 reproduction

Post by Kold666 » December 3rd, 2019, 11:21 am

out of stock

Kold666
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Re: [FS] Sega Trackball pcb 837-8586 reproduction

Post by Kold666 » February 14th, 2020, 6:08 pm

1 piece available

8bitforlife
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Re: [FS] Sega Trackball pcb 837-8586 reproduction

Post by 8bitforlife » February 15th, 2020, 11:14 am

can i get one ordered not naked or just naked? ill take 1 regardless.

Kold666
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Re: [FS] Sega Trackball pcb 837-8586 reproduction

Post by Kold666 » February 15th, 2020, 11:28 am

Hi,
I have several people in queue and I am waiting for payment.
I Will probably make another batch in some weeks and I Will contact you

Kold666
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Location: Italy
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Re: [FS] Sega Trackball pcb 837-8586 reproduction

Post by Kold666 » February 15th, 2020, 8:26 pm

out of stock

8bitforlife
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Re: [FS] Sega Trackball pcb 837-8586 reproduction

Post by 8bitforlife » February 16th, 2020, 11:47 am

thank you

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