SOLD: Keithley 614 Electrometer - Page 1
Forum section: electronics / general

author: HighVoltage
author_rank: Super Contributor
timestamp: March 01, 2020, 12:39:35 pm
content: I am selling my Keithley model 614 Electrometer, since I now have a Model 617This electrometer was repaired by me in 2016, see thread here:https://www.eevblog.com/forum/repair/keithley-614-electrometer-repair-and-restauration/The electrometer is in perfect working condition and it is calibrated.The front bezel was repaired, the rest of the plastic is in perfect conditionThe display is working perfectly and is bright.These pictures are from today.Asking price: Euro 250Shipping cost DE: FreeShipping cost EU: Euro 18Shipping cost rest of world: euro 40Resistors and Triax cables are NOT included.I am only selling the Keithley 614 instrument.

author: HighVoltage
author_rank: Super Contributor
timestamp: March 01, 2020, 12:44:49 pm
content: Here are some pictures of the calibration

author: HighVoltage
author_rank: Super Contributor
timestamp: March 01, 2020, 01:00:51 pm
content: Are here are two pictures of measuring resistors1x 20 MOhm precision Caddock resistor1x 10 GOhm glass resistor

author: HighVoltage
author_rank: Super Contributor
timestamp: March 02, 2020, 10:15:59 am
content: Sold to a very nice forum member in Germany

author: Qw3rtzuiop
author_rank: Frequent Contributor
timestamp: March 06, 2020, 11:59:24 am
content: The unit arrived in a good condition.With a proper pA meter i can start the repair of my Keithley 224.

author: HighVoltage
author_rank: Super Contributor
timestamp: March 06, 2020, 03:03:10 pm
content: I am glad it arrived in good condition.The only bad thing now is your investment in proper Triax-Cables and connectors.But luckily, the 224 has the same triax connector.

author: Qw3rtzuiop
author_rank: Frequent Contributor
timestamp: March 06, 2020, 03:28:53 pm
content: I want to replace the connector with a Pomona 3-Lug connector.https://www.digikey.com/products/en?keywords=pomona5219‎My Keithley 236 also has 3-Lug connectors.

author: HighVoltage
author_rank: Super Contributor
timestamp: March 06, 2020, 04:02:54 pm
content: That is a good solution as well.If you replace the 2-Lug connectors and don't need them anymore,I would gladly buy them back from you, LOL!

author: Qw3rtzuiop
author_rank: Frequent Contributor
timestamp: March 06, 2020, 05:11:53 pm
content: Off course you can have them. But im unsure which solder i use.I just have Sn60 Pb40. Or is it worth to buy Sn 95,5 Ag3,8 Cu0,7?

author: HighVoltage
author_rank: Super Contributor
timestamp: March 06, 2020, 05:56:35 pm
content: Make sure that the bare cables touch the connector and squeeze them tight in such way that a large surface of the bare cables touch the connector before soldering.Then solder.This way the volumetric solder between the cables and connectors is tiny.As long as the cables touch the connectors before soldering, the type of solder does not have measurable influence.I have used both solder before and could not find a difference.

author: MiDi
author_rank: Frequent Contributor
timestamp: March 15, 2020, 01:46:41 pm
content: Quote from: HighVoltage on March 06, 2020, 04:02:54 pmSOLDIf interested,I have a original 2-lug connector FS from K617 that I replaced with a 3-lug.

author: HighVoltage
author_rank: Super Contributor
timestamp: March 15, 2020, 09:42:27 pm
content: Quote from: MiDi on March 15, 2020, 01:46:41 pmPM sent