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  • Combining a Logic Probe and Pulser Combined into One
  • Probe for Troubleshooting Digital Circuits
  • Operating Voltage: 4VDC ~ 18VDC
  • Maximum Input Signal Frequency: 50MHz
  • TTL: Logic “1”>3.0V±0.25V, Logic”0”<0.75±0.25V
  • CMOS: Logic “1”>60%VCC±5%, Logic”0”<15%VCC±5%
  • Minimum Detectable Pulse Width: 10nsec
  • Pulser: Sync input impedance 120kΩ
  • Pulse Repetition Rate: Switchable 0.5/400Hz
  • Pulse width: 10μsec
  • Dimensions & Weight: 18(W)x210(H)x18(D)mm, Approx. 50g


The GLP-1A logic pulser can be used to perform in-circuit testing of TTL, CMOS, and many other logic devices at a maximum of 50MHz. The GLP-1A is enhanced with a logic probe function with a minimum detectable pulse width of 10 ns, providing enough sensitivity for most applications. A Short 10 sec pulse width assures that no damage will occur to circuits whilst testing. With a weight less than 50g, a non-slip grip, and an external sync input, GLP-1A provides comfort and reliability for various troubleshooting tasks.


Maximum Input Frequency 50MHz
Input Impedance 120kΩ
Operating Voltage 4V DC (minimum)
18V DC (maximum)
TTL Logic "1" (HI LED) >3.0V +0.25V
  Logic "0" (LO LED) <0.75V +0.25V
CMOS Logic "1" (HI LED) >60%Vcc +5%
  Logic "0" (LO LED) <15%Vcc +5%, <40% +5% (For 7 ~ 18Vcc)
Sync Input Impedance 1MΩ
Pulse Rate 0.5/400pps
Pulse Width 10μS
Output Current 100mA sink/source
Square Wave Output 5mA sink/source
Operation Voltage 5 ~ 15V DC
Output Protection 20V DC (maximum 30 sec)
Input Protection 120V DC (maximum 30 sec)
Measurement Point Protection 35V DC (maximum 30 sec)
  18(W) x 210(H) x 18(L) mm
Approx. 50 g

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