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How can I tell if my amp is really a ms-2250?

Posted: Sat Jan 28, 2012 7:13 pm
by stevesteve703@live.com
I am missing the side plate and was told it is a 2250 but it looks the same to me as the other models. is there anyone that can guide me to the differences, I have a ms-2125 for comparison
http://s18.postimage.org/51n0cb4zt/photo4.jpg

Re: How can I tell if my amp is really a ms-2250?

Posted: Sat Jan 28, 2012 7:36 pm
by wooferdog
what is the serial number on the board ? Should start with 22 if it's a 2250.

Re: How can I tell if my amp is really a ms-2250?

Posted: Sat Jan 28, 2012 7:53 pm
by stevesteve703@live.com
serial number sticker is not on the back cover, is it anywhere else?

Re: How can I tell if my amp is really a ms-2250?

Posted: Sat Jan 28, 2012 10:40 pm
by valeks1
MS2125 or MAC500. I need rail caps voltage

Re: How can I tell if my amp is really a ms-2250?

Posted: Sun Jan 29, 2012 4:49 am
by wooferdog
number should be on the board inside on a white sticker. can you get a better pic of the inside ?

Re: How can I tell if my amp is really a ms-2250?

Posted: Sun Jan 29, 2012 7:59 am
by Eric D
The transformers are too small to be a MS2250, MS2250TA, or MAC500.

I am guessing it is a MS2125, or a MPS2500, but only the rail voltage would determine that.

Re: How can I tell if my amp is really a ms-2250?

Posted: Sun Jan 29, 2012 8:41 am
by stevesteve703@live.com
Rail voltage? how do I check that?

Better pic: http://postimage.org/image/fay1n90il/

Re: How can I tell if my amp is really a ms-2250?

Posted: Sun Jan 29, 2012 9:34 am
by Eric D
What is the voltage on the big blue capacitors?

Re: How can I tell if my amp is really a ms-2250?

Posted: Sun Jan 29, 2012 9:52 am
by stevesteve703@live.com
[quote="Eric D"]What is the voltage on the big blue capacitors?[/quote]
6800UF
63VDC
9319L 03
+105 C

Re: How can I tell if my amp is really a ms-2250?

Posted: Sun Jan 29, 2012 10:00 am
by longboard
thats the same rating as my original ms2250

Re: How can I tell if my amp is really a ms-2250?

Posted: Sun Jan 29, 2012 10:04 am
by stevesteve703@live.com
So I can assume the guy I bought it off is telling the truth? it is a ms-2250?

Re: How can I tell if my amp is really a ms-2250?

Posted: Sun Jan 29, 2012 10:37 am
by joerg
Is there a decal on the circuit board of the amp that has a number on it?

Re: How can I tell if my amp is really a ms-2250?

Posted: Sun Jan 29, 2012 10:56 am
by stevesteve703@live.com
Doesnt have anything on the board that would give it away.

Re: How can I tell if my amp is really a ms-2250?

Posted: Sun Jan 29, 2012 11:07 am
by joerg
What´s the part number on the 2 bigger transformers?

Re: How can I tell if my amp is really a ms-2250?

Posted: Sun Jan 29, 2012 11:26 am
by Eric D
At this point I think it is a MS2125 which someone installed MS2250 caps in.

The transformers are not big enough to be a MS2250 (those in there would saturate).

Re: How can I tell if my amp is really a ms-2250?

Posted: Sun Jan 29, 2012 11:36 am
by wooferdog
the number should be on the right side next to the ps caps if you have the amp upside down and the wiring side facing you.

Re: How can I tell if my amp is really a ms-2250?

Posted: Sun Jan 29, 2012 12:15 pm
by stevesteve703@live.com

Re: How can I tell if my amp is really a ms-2250?

Posted: Sun Jan 29, 2012 12:43 pm
by longboard
looking at the feeds from the coils i would say its not a ms2250

Re: How can I tell if my amp is really a ms-2250?

Posted: Sun Jan 29, 2012 1:23 pm
by valeks1
stevesteve703@live.com wrote:
Eric D wrote:What is the voltage on the big blue capacitors?
6800UF
63VDC
9319L 03
+105 C
This is MAC500

Re: How can I tell if my amp is really a ms-2250?

Posted: Sun Jan 29, 2012 7:26 pm
by stevesteve703@live.com
How about we get everyones best guess?

Re: How can I tell if my amp is really a ms-2250?

Posted: Sun Jan 29, 2012 7:50 pm
by kg1961
valeks1 wrote:
stevesteve703@live.com wrote:
Eric D wrote:What is the voltage on the big blue capacitors?
6800UF
63VDC
9319L 03
+105 C
This is MAC500

Valeks1 has been working and repairing pg amp for amost 20years i would say he would know the best

Re: How can I tell if my amp is really a ms-2250?

Posted: Sun Jan 29, 2012 8:21 pm
by Thumper88
Yep, sure does look like a MAC500...
http://download.phoenixphorum.com/Phoru ... c500-1.jpg

Re: How can I tell if my amp is really a ms-2250?

Posted: Tue Jan 31, 2012 7:30 pm
by stevesteve703@live.com
Cant find any info or specs on a mac500......
the transformers(?) look a bit different on mine I think

Re: How can I tell if my amp is really a ms-2250?

Posted: Tue Jan 31, 2012 8:22 pm
by valeks1
Parts# can be 9005.0029 and 9005.0030 or 9005.0029A and 9005.0030A

Specs same as MS2250TA

Re: How can I tell if my amp is really a ms-2250?

Posted: Wed Feb 01, 2012 3:33 pm
by stevesteve703@live.com
[quote="valeks1"]Parts# can be 9005.0029 and 9005.0030 or 9005.0029A and 9005.0030A

Specs same as MS2250TA[/quote]

says 9005.0030A