HP 75000 Series 90 HP E1663A Sonet/SDH Electrical Interface

Used and old item.it seems working,power ON. But I dont know all options and all system work or not work.

The HP 5087A is a distribution amplifier designed to take stable frequency reference signals (such as from atomic clocks or

Hp (HEWLETT PACKARD) 5350B MICROWAVE FREQUENCY COUNTER

Very Good condition.working well.As pictures not more. Very clear.without problem. Pro Analyzer & Test Equipments is a source for new