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Dr. Bob
Moderator
Australia
6593 Posts |
 Posted - 04/08/2009 : 12:42:08
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Hi zzordzz
You have the same thread running over here.
http://www.bossarea.com/forum/topic.asp?TOPIC_ID=6833
quote:
what means 1MC (MC)-stands for???
and 250KA. POts?
look like??
i go some electronic shop here but they dont know the value of pots Like MC / KA hhuhuhuhu do you have some picture of this pots and explanation?
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I don't wish to be rude & condesending but.
These are standard explanations of Potentiometer values, used in every day electronics.
It seems that your electronics supplier is used to some other form of
value information.
I took the values directly off the Boss schematic.
The 1MC is a 1 Meg ohm pot (1 million ohms [1,000,000] ),
C specifies it as a Reverse Log taper,
get a Linear pot if they don't have a Rev. Log, the setting will be a little different.
Rev. Log means Reverse Logarithmic.
Log means Logarithmic.
Lin means Linear.
As for the 250KA pot,
that means a 250 thousand ohms pot (250,000 Ohms) ,
A specifies it as a Log pot or more commonly know as an AUDIO Taper pot.
I don't think I can be clearer than that, I hope this helps out your local electronics supplier.
Personally, I would change suppliers, to someone who understands electronics & electronics terminology. 
I suggest you take the pedal with you, & show them the size & type of the part as well,
in in case they supply you with full sized 24mm diameter pots.
Regards Dr. Bob 
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BOSS ns-2 potentiometer/rotary switch
