That 723

Rowena Larkins rowenal at nimrod.itg.telstra.com.au
Wed Sep 23 05:47:38 CEST 1998


as I said in an earlier email, 
>I am just trying to get a dead 723 based power supply working!!

I am trying to get an old 4600 (ex P.Perry) going.

The synth had a power supply which was based on a can (T05) type package.
I can get hold of a DIP (plastic flat) package but it won't fit in the holes.

Which of you gurus out there can advise me as to the most appropriate way to 
get a DIP device to work in such a unit??

I can install the DIP on a separate board, but what about heatsinking such 
a device? the old metal can had a heatsink.

The 4600 documentation says that the 5 volt should supply 60mA, which to my 
calculation indicates about 300mW. 
Will a plastic DIP 723 dissipate that without a heatsink?

As to an alternative for a power supply, the 4600 requires +/-7 and +/-14
Volt supplies, so a simple 7812 or 7815 won't do.

Thanks,

Rowena



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