[Amps] Simpson 270 series 5 VOM

TexasRF at aol.com TexasRF at aol.com
Mon Nov 15 10:42:53 PST 2010


Hi Pete, most of these kind of meters have a second and higher voltage  
battery for the high ohms scale.It is highly likely yours has one and it has  
exceeded its life.
 
73,
Gerald K5GW
 
 
 
In a message dated 11/15/2010 12:08:11 P.M. Central Standard Time,  
n4kwpete at centurylink.net writes:

Please  excuse the off subject question, but figured the amplifier crowd 
would  probably know the answer.
I have lost the ability to zero the Rx100 scale,  Rx1 is fine and I have 
replaced the 1.5v battery.  I have a  schematic, but  the circuit board in 
the meter does not have any  component designations, i.e., R1, R12 etc. 
Anyone familiar with this VOM,  please contact me direct.
73 Pete  N4KW

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