Re: MH and Tempest spinner not compatable?

I did find this pcb at happ

http://www.happcontrols.com/trackballs/a052101000.htm

Will this work for a MH?

Mine wouldnt work even with the 100 ohm resistor changed to 150.

Thanks,
JB

Ian Boffin wrote:

> Of 4 coupler PCBs I had (from 2 Tempests and a Millipede), only one
> worked with MH. The one that worked gave almost identical voltage
> readings from the 2 optos, whereas the other 3 boards gave differing
> readings. With my relative lack of knowledge I assumed that MH was
> just very picky about getting high readings from the two optos. I
> seem to recall that the "working" PCB was fine with my Tempest also.
>
> Joe wrote:
>
>> Thanks... I did notice now that the MH board has a 150 ohm resistor
>> from
>> ground. The Tempest has a 100. If I change the resistance, I would
>> assume that it'd work on MH. But, will it still work in the
>> Tempest...... I guess I'll find out..
>>
>> -----Original Message-----
>> From: Louis Srianomai [mailto:louisurfer@yahoo.com]
>> Sent: Friday, March 14, 2003 1:13 PM
>> To: vectorlist@synthcom.com
>> Subject: Re: VECTOR: MH and Tempest spinner not compatable?
>>
>> Joe,
>>
>> I think some of the older opto boards work and some don't with MH.
>>
>> If I recall, the latest one you can buy at happ rev F. works. I
>> think
>> Mark
>> used these for his repro roller.
>>
>> Of the 10 or so tempest CP's I've seen only about half worked with
>> MH.
>>
>> L.
>>
>>
>> --- Joe <joe@joesarcade.com> wrote:
>>
>> > Are the MH and Tempest spinners not compatible I did see in the
>> >
>> Tempest
>>
>> > -> MH conversion that Atari included a new spinner pcb, or is that
>> > wrong? If so, does anyone have schematics of the MH spinner PCB?
>> >
>> > Please help if you can...
>> >
>> > Thanks,
>> > JB
>> >
>> >
>> >
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Received on Sat Mar 15 11:10:13 2003