Sonde

摘要

1294729 Test probes P S DIVITA E N POWERS and C J WERNETH 4 May 1970 [2 May 1969] 21409/70 Heading H2E A conductive member 16 for engaging a circuit under test is secured to a cross-bar 22 and may be advanced and retracted by rotating a thumbwheel 26 engaging a threaded stud 24. The end of the tube 18 is slotted to receive the member 16 when retracted and its exterior surface is covered with insulating material 20. An interchangeable logic pack 32 for matching the probe to the logic of the circuit under test is connected between the conductive member via spring 28 and the end of wire 12 connecting the probe to the test apparatus. A ground wire 38 and crocodile clip 40 are employed to complete the circuit of the probe.