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| 34401A Multimeter Input Banana Socket Issue |
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| HighVoltage:
--- Quote from: bdunham7 on June 02, 2022, 02:34:52 am ---Does anyone know--are these NLA from Keysight? --- End quote --- About one year ago, I bought this receptor block from Keysight for a 34401A and it was very difficult to get. So I assume it is no longer available for sale. |
| dreamcat4:
--- Quote from: bdunham7 on June 01, 2022, 03:29:49 pm ---just measured mine which is an all-red-socket version, but not a very early one. I was surprised to see some variance, but they were all 7.5-7.8mm --- End quote --- Mine is an early all red socket. And I can confirm today very similar numbers. So they seem nominal, i.e. were not pushed in at any time... my 34401a terminals depth =========================== early model, all red terminals, which has the failing VFD driver ('unobtainium') front terminals --- Code: ---recess distance from face of plastic lip to lowest edge of copper ring 1. HI+ = 7.51mm = 0.296 in 2. HI- = 7.34mm = 0.289 in 3. LO+ = 7.62mm = 0.300 in 4. LO- = 7.46mm = 0.294 in 5. I3A = 7.30mm = 0.287 in plastic hole max inner diameter = 8.20mm, typical = 8.20mm = (imperial) 0.323" max, 0.323" typical copper ring terminal max inner diameter = 4.18mm, typical = 4.10mm = (imperial) 0.165" max, 0.161" typical --- End code --- rear terminals --- Code: ---recess distance from face of plastic lip to lowest edge of copper ring 1. HI+ = 7.56mm = 0.298 in 2. HI- = 7.42mm = 0.292 in 3. LO+ = 7.97mm = 0.314 in 4. LO- = 7.79mm = 0.307 in 5. I3A = 7.36mm = 0.290 in plastic hole max inner diameter = 8.30mm, typical = 8.20mm = (imperial) 0.327" max, 0.323" typical copper ring terminal max inner diameter = 4.00mm, typical = 4.00mm = (imperial) 0.157" max, 0.157" typical --- End code --- Not sure that helps anything, seemed like I needed to measure mine now and check how bad they were. To select the right type of jacks (for getting the probe master leads too). To check against the probe master compatibility list, and the dimensions / specs on their CAD drawings. |
| iMo:
Those are just copper tubes - see below. Try to bend them such it fits.. |
| dreamcat4:
yes! exactly :-+ shouldn't be too big a deal once you can get in there. in fact Ian Scott Johnson does a great teardown / disassembly showing how to do it safely in his repair video series on the 34401a over on youtube. ... in fact looking at your photo here, it seems like it might be a good idea to try jamming in an extra chunk of plastic behind the coppor tubes. To act as a spacer and block any further possible movement. Although I suppose for the safety rating they still should remain recessed by at least the 0.3" (or 7.5mm), whatever the specs calls for Thanks for posting the pic dude. Very helpful |
| iMo:
Also double-check the copper tube's solder joints at the pcb.. The tubes are simply soldered straight into the pcb. Pictures from xdevs.com |
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