Keysight (Agilent/HP) 8015A

50 MHz double pulse generator, pulse frequency 1 Hz to 50 MHz in 4 ranges. Rise and fall times adjustable in 4 ranges from 6 ns to 4 s. Overshoot < 5%, output ± 16 V, pulse interval in double pulse operation 20 ns to 1 s in 4 ranges. Jitter below 0.1% ± 50 ns. Square wave signals 1 Hz to 25 MHz, triggered pulse count. PULSE GENERATOR 1 Hz - 50 MHz