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  #10  
Old August 23rd 03, 01:13 AM
Chad Lemmen
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I talked with Trans-Cal and they said they would overhaul my D120-P2-T
encoder to like new with all the updates (mine was manufactured in 1974)
for $300 or they would exchange mine for the newer SSD-120-30 solid state
unit for $165. It seems like the easy decision would be to get the solid
state unit, but they did say that those units tend to need re-calibration
every two years and may need repair after 5 years or so. The older style
encoder will most likely last 30 years and may never need calibration. I
chose to get mine overhauled, I think it will save me money in the long
run. It sounds like the ACK and Ameri-King units also need calibration
often. I looked through my logs and can't find any entries for repairs to
my encoder, which means it has lasted 29 years.