WTB: Keithley 2000 power transformer - Page 1
Forum section: electronics / general

author: Jwalling
author_rank: Unknown
timestamp: December 31, 2015, 02:34:10 pm
content: Keithley part # is TR-299. This particular one is marked REV. B6, and has an open primary.The last time I checked Keithley/Tek have a $150 minimum so I'd rather find another source. This is why Agilent is much better, last time I bought from them, it was only $50 AND you can find the parts/pricing and order online.Surely someone has a scrapper.Thanks!Jay

author: SeanB
author_rank: Super Contributor
timestamp: December 31, 2015, 02:39:35 pm
content: Sure there is not just a failed thermal fuse there that is possible to replace with a donor from another cheap n cheerful wall wart donor one.

author: Jwalling
author_rank: Unknown
timestamp: December 31, 2015, 02:49:37 pm
content: Quote from: SeanB on December 31, 2015, 02:39:35 pmAlready checked for one - if there is, it's buried under the primary windings. I'll post a picture next time I'm in the lab.Jay

author: SeanB
author_rank: Super Contributor
timestamp: December 31, 2015, 02:58:54 pm
content: Was scrapping 2 wall warts today for the copper wire, and found a different style of fuse, they buried a PTC thermistor in there instead of the one time fuse. Was well buried under the tape.

author: Jwalling
author_rank: Unknown
timestamp: January 01, 2016, 11:26:16 am
content: Here's the picture. As you can see, the primary wires at the bottom go under the windings.Jay

author: KJDS
author_rank: Super Contributor
timestamp: January 01, 2016, 11:36:00 am
content: I have a couple of 2015THD spares units. If £50 including shipping from the UK is ok, then let me know and I'll test them to make sure they're ok.

author: SeanB
author_rank: Super Contributor
timestamp: January 01, 2016, 12:54:23 pm
content: They wound on a winding for a secondary after they did the fuse. New transformer time, take the offer from KDJS as the new one will work. If it was unobtanium and you were willing to spend the money a rewind would be an option.

author: nidlaX
author_rank: Frequent Contributor
timestamp: January 02, 2016, 03:55:22 am
content: Quote from: Jwalling on December 31, 2015, 02:34:10 pmMinimum order for me through Tektronix in October was $30. Maybe you should ask them for another quote?

author: free_electron
author_rank: Super Contributor
timestamp: January 02, 2016, 06:33:20 am
content: I may have one. Lemme check tomorrow morning

author: Jwalling
author_rank: Unknown
timestamp: January 02, 2016, 11:38:07 am
content: Quote from: KJDS on January 01, 2016, 11:36:00 amThanks, but looking in the service manual for the 2015THD, it lists two part numbers for the transformer. TR-328 and TR-332.I'm a bit hesitant to use a different part number...Jay

author: Jwalling
author_rank: Unknown
timestamp: January 02, 2016, 12:11:34 pm
content: Quote from: nidlaX on January 02, 2016, 03:55:22 amInteresting. Where are you located? Perhaps that makes a difference?It has been close to a year since I last ordered parts from them...Jay

author: free_electron
author_rank: Super Contributor
timestamp: January 02, 2016, 07:49:22 pm
content: nope. i have a TR280 rev-D which is for a keithley 2001.

author: Jwalling
author_rank: Unknown
timestamp: January 02, 2016, 08:18:10 pm
content: Quote from: free_electron on January 02, 2016, 07:49:22 pmNP. Thanks for checking!Jay

author: Jwalling
author_rank: Unknown
timestamp: January 05, 2016, 07:21:10 pm
content: Quote from: Jwalling on January 02, 2016, 12:11:34 pmYou're right, nidlaX. Minimum order is now $30. That's great news!Bad news: The price is $166.That's nuts!Jay

author: nidlaX
author_rank: Frequent Contributor
timestamp: January 05, 2016, 08:22:39 pm
content: Hahaha, doh! Good luck getting that transformer. You could ask the OEMs directly to see if they will sell to you for less. I believe there are multiple US based manufacturers of that transformer.Sent from my LG-E970 using Tapatalk

author: Jwalling
author_rank: Unknown
timestamp: April 11, 2016, 10:44:03 am
content: Quote from: Jwalling on December 31, 2015, 02:34:10 pmStill looking for this. Don't want to pay $166.Anyone?Jay

author: Jwalling
author_rank: Unknown
timestamp: June 03, 2016, 04:25:38 pm
content: Quote from: Jwalling on April 11, 2016, 10:44:03 amBumpA spider has made a nest in the DMM since I left the cover part-way off. I'm considering charging him/her rent to cover the $166 charge that Tektronix sells it for.Yes, still lookingJay

author: Jwalling
author_rank: Unknown
timestamp: September 07, 2016, 03:32:32 pm
content: Still looking.Found a used one in the UK, but they want $100 to ship a 2 pound transformer to 01756 in the US.http://www.plccenter.com/en-US/Buy/MULTICOMP/129402500They have no stock in the US.Some additional research shows that there's two manufacturers at leastMULTICOMP PART # 129-4025-00They appear to be dead/out of business.andNorthlake Engineering, INC. Bristol, OR. Part # K1-433PI contacted them and the response was "Good Morning Jay – Please note this is a custom and proprietary design for Tektronix. You will have to contact them directly for replacement parts."Been there, done that.

author: Nuno_pt
author_rank: Frequent Contributor
timestamp: September 07, 2016, 03:38:28 pm
content: Jay,See if any of they guys here on the forum, locate in UK, would send it to you, could be cheaper.They send it to the UK address, and then he send it to you, this can be an option.

author: Kjelt
author_rank: Super Contributor
timestamp: September 07, 2016, 09:09:56 pm
content: Whats so special about this transformer, how many secondary voltages? Can,t you buy two standard transformers a d get it going, or some manufacturers that will make them for you like Amplimo?