I have the following:
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HP 3575A gain-phase meter
HP K34-59991A phase comparator
Tracor 527A & 527E frequency difference meters
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The 527¡¯s are handy for fast convergence of a significantly off-frequency signal.? Then for fine adjustment both the HP meters are called into use.? The analog output of the 3575A can be fed into a PC for long-term analysis and is handy for setting the crossover point of quartz crystal based standards.
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Greg
