[sdiy] tr 707 question

[Stewart Pye]

DC input socket:
I'm pretty sure it's just a common PCB mount 2.1mm socket. The most 
common of all, so any place that sells DC sockets should have it....

Regards,
Stewart.

Eric Wood wrote:
> Do you have a part number for the AC input jack?
>
> Sent from my iPhone
>
> On Aug 28, 2010, at 4:13 PM, Stewart Pye <stewpye at optusnet.com.au> wrote:
>
>   
>> Damien,
>> Do you have the service manual?
>>
>> The rimshot trig out actually comes from a separate pin on the micro, however there is a separate trigger signal for each voice that goes to the envelope generators. They are standard analogue decay EG's so you should get a trigger pulse right at the beginning of each sound. I think it will be a negative going pulse. I'd replicate the EG circuit but without the decay cap so that the Accent level varies the trigger level and you get a positive going pulse.
>>
>> The copy of the manual I have is a bit blurry, but you should be able to take the signal from the outputs of IC27 and IC28.
>>
>> I guess I should go open up my 707!
>> If you really want to hack the 707 you could put a decay pot in for each voice and take the outputs from the envelope generators!
>>
>> Cheers,
>> Stew.
>>
>>
>> cheater cheater wrote:
>>     
>>> Hi guys,
>>> is it possible to get analog gate or trigger out of the 707 for the
>>> separate sounds? I don't mean through midi, the timing isn't good
>>> enough that way. I think it could be possible to intercept the
>>> communication to the memory, to find out when the 707 is reading off
>>> the beginning of the samples.. right?
>>>
>>> Cheers,
>>> D.
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