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To: Repeater-Builder@yahoogroups.com
Sent: Sunday, November 23, 2003 7:49 PM
Subject: [Repeater-Builder] E.F. Johnson 3450 LPI Repeater
E.J. Johnson 3450 LPI Repeater data repeater..
Hello all im looking to re crystal a few of these repeaters that i have..
I have contacted ICMFG
The companies no longer cut crystals for this unit because of the problems
that they had with people trying to recrystal the oscillator. The
oscillator has laser trimmed components in it. These were trimmed after the
crystal was installed. The oscillator is then unique to the installed
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