Yet another ... where can I find this old Tektronix knob ? - Page 1
Forum section: electronics / general

author: BravoV
author_rank: Super Contributor
timestamp: October 22, 2013, 03:40:21 am
content: Tried eBay, and popular Tek parts stores likeSphereandQservice (did have it, but out of stock)and still no luck... or .. if you happened to have one of this, un-used gathering dust.

author: dfmischler
author_rank: Frequent Contributor
timestamp: October 22, 2013, 10:01:05 am
content: What is the Tektronix part number?

author: BravoV
author_rank: Super Contributor
timestamp: October 22, 2013, 10:19:38 am
content: Quote from: dfmischler on October 22, 2013, 10:01:05 amPart no 366-1464-01 , attached below quote from the service manual. Yeah, tried Google but most results are garbage.

author: AlfBaz
author_rank: Super Contributor
timestamp: October 22, 2013, 11:40:30 am
content: IF you have plenty of time on your hand and cant source the knob, you could attempt to make one yourself as it's shape seems mould friendly.Dismantle the knob so you are left with the grey part, give it a light spray with wd-40, get some 2 part epoxy putty, forcing it into all the nooks and crannies, encase the outside of the part, making sure you can still pull the knob out. Once the putty sets, pull the original knob out (obviously one of the good ones) spray the mould with WD-40 and pack it with the same putty and set a small screw where the shaft should be so that when it sets you can pull it out.It's not easy to get it right but it can be done with a bit of practice

author: Unknown
author_rank: Unknown
timestamp: October 22, 2013, 12:08:06 pm
content: You may be able to find Tek knobs with similar dimensions with different colors or markings. It looks like the damage is only cosmetic however, so you may not want to spend money on non-original knobs.

author: KD0CAC John
author_rank: Frequent Contributor
timestamp: October 22, 2013, 02:43:32 pm
content: I have a bunch of Tektronix parts , I will check ?John

author: BravoV
author_rank: Super Contributor
timestamp: October 22, 2013, 03:21:29 pm
content: @AlfBaz,Thanks for the suggestion, but unfortunately I just don't have any skill nor talent to do such moulding process. For example like this one made Conrad Hoffman ->Casting Replacement Gears for the HP 8640B RF Signal Generator, and maybe the cost of the moulding materials may a lot higher than a single used knob.@alm,Yep, purely cosmetic, actually there is another option which is to replace the three knobs all with the same type, but somehow I don't feel like to do it. Btw you're partly to blame for making me purchased this piece of gear.@KD0CAC John,Really appreciate that, hoping you will find the right one, thank you John.

author: AlfBaz
author_rank: Super Contributor
timestamp: October 22, 2013, 09:27:02 pm
content: Quote from: BravoV on October 22, 2013, 03:21:29 pmThanks for the link, I'll keep that as a reference.Good luck

author: KD0CAC John
author_rank: Frequent Contributor
timestamp: October 22, 2013, 10:51:47 pm
content: I went through my stash and some of them look close but none of them say CAL on them .I want and mark it to look like yours , send me one of your damaged ones so I can check to make sure mine is a good fit ?John FaughnPO box 14182St. Paul , MN 55114

author: BravoV
author_rank: Super Contributor
timestamp: October 23, 2013, 03:07:41 am
content: John, check the dimension and the detail shape of this knob ->HERE, and check your PM too.

author: KD0CAC John
author_rank: Frequent Contributor
timestamp: October 23, 2013, 01:36:25 pm
content: My ruler from Dave hasn't got here yet , no metric , but I can manage

author: KD0CAC John
author_rank: Frequent Contributor
timestamp: October 24, 2013, 12:35:04 am
content: The 1st ones I grabbed were different , these should be the ones except for the markings ?

author: BravoV
author_rank: Super Contributor
timestamp: October 24, 2013, 03:21:15 am
content: John, thank you !Are those two knobs above at the top have different hole sizes for the shaft ? For sure mine needs a side screw.I'm currently on travel, give me a day or two and I will post the close-up shots of my knob with side by side with a ruler or with caliper if I can find it somewhere buried among the pile of electronic parts.

author: AlfBaz
author_rank: Super Contributor
timestamp: October 24, 2013, 03:24:17 am
content: Quote from: BravoV on October 24, 2013, 03:21:15 amI think I might unsubscribe from this post now...

author: BravoV
author_rank: Super Contributor
timestamp: October 24, 2013, 04:27:19 am
content: Quote from: AlfBaz on October 24, 2013, 03:24:17 am