Seeking Specification
2010-05-19 by Mike
To the group, I am rebuilding a power supply for a farfisa matador-r. I am looking for the specification for the SFF5002E Frequency divider. Any help will be appreciated. mike
Thread
Seeking Specification
Re: Seeking Specification
2010-05-19 by duncan
>>I am rebuilding a power supply for a farfisa matador-r. I am looking for the specification for the SFF5002E Frequency divider. Any help will be appreciated.<< as a rule of thumb, I look at the ratings of any electrolytics in the vicinity, & start with a variable DC power supply around half what I see, current limited. slowly increase the voltage until the whatever it is sems to be working happily. but that's a last resort & presumes that a lab bench supply is easily available. is nothing left of the original supply to get clues from? duncan.
RE: [vintagesynthrepair] Re: Seeking Specification
2010-05-19 by Sven Braamkolk
Hi,
You can buy the manual here:
http://www.alsguitars.co.uk/farfisa-matador-organ--technical-info-181-p.asp
the chip is used by several other organs so maybe you can look for manuals of the other organs:
http://www.vintagechip.altervista.org/ICs/SFF5002.html
Seems to be the same as HBF 4740: + and - 12 V
http://www.elektroda.pl/rtvforum/topic463024.html
sven
To: vintagesynthrepair@yahoogroups.com
From: ferrograph@...
Date: Wed, 19 May 2010 19:08:24 +0000
Subject: [vintagesynthrepair] Re: Seeking Specification
De nieuwste Internet Explorer: snel, eenvoudig en veilig. Download nu!
You can buy the manual here:
http://www.alsguitars.co.uk/farfisa-matador-organ--technical-info-181-p.asp
the chip is used by several other organs so maybe you can look for manuals of the other organs:
http://www.vintagechip.altervista.org/ICs/SFF5002.html
Seems to be the same as HBF 4740: + and - 12 V
http://www.elektroda.pl/rtvforum/topic463024.html
sven
To: vintagesynthrepair@yahoogroups.com
From: ferrograph@...
Date: Wed, 19 May 2010 19:08:24 +0000
Subject: [vintagesynthrepair] Re: Seeking Specification
>>I am rebuilding a power supply for a farfisa matador-r. I am looking for the specification for the SFF5002E Frequency divider. Any help will be appreciated.<<
as a rule of thumb, I look at the ratings of any electrolytics in the vicinity, & start with a variable DC power supply around half what I see, current limited. slowly increase the voltage until the whatever it is sems to be working happily.
but that's a last resort & presumes that a lab bench supply is easily available.
is nothing left of the original supply to get clues from?
duncan.
as a rule of thumb, I look at the ratings of any electrolytics in the vicinity, & start with a variable DC power supply around half what I see, current limited. slowly increase the voltage until the whatever it is sems to be working happily.
but that's a last resort & presumes that a lab bench supply is easily available.
is nothing left of the original supply to get clues from?
duncan.
De nieuwste Internet Explorer: snel, eenvoudig en veilig. Download nu!