So this is my “new” blog, altough the domain have excisted for a while, I have not done any blog post yet. My former blog was on blogger.com, before they messed up, and the resulting mess ended up with no pictures, and posts with scrambled text. Most of the content was less interesting, so the relevant parts may end up in an post here.
In this blog I plan on sticking to RF (Radio Frequency) engineering, with some de-tours into other fields, mainly electronics. I will try to write all my post in english, but there may appear some isolated posts in norwegian from time to time. I have an goal to keep the blog free of any comercial avertizing. As of now, I’m not paid by any of the mentioned firms in my posts, if that changes, I will make sure to blog about it.
I’m considering getting an domain for this blog, but for now, I’l use wordpress as the publishing platform.
RF and electronics blog LA3PNA 
Thomas,
I read on TekScopes that you were working on making extenders for the Tek 492. I believe that you mentioned that you has found some connectors that could be used to make extender boards.
Any chance you could tell me the part number you found? I am in the process of making extenders so that I can fix my ailing Tek 492 that won’t phase lock.
Thank you,
Sam
W3OHM
Hello Sam.
It is correct that I found some connectors back in 2009 or so?, but I’m not sure I have that component number availavble any more, but I will have a look for it. It must have been at digikey, so thats a place to start. The pin spacing of those connectors are less than common.
I did not get around to making a run of the extenders, a while later, Norway Labs in OR did a run of their excelent extenders and I ordered a set ($110 if I remember correctly). See http://www.norwaylabs.com/ for a e-mail address, they may have more available. Matt North is the person you want to contact.
As to the PLL fault on the 492, thats a fairly common occurence. Check the tantaliums on the small board on or near the YIG, on the bottom side of the analyzer. Observe that the PLL works somewhat different between the versions of the 492, mine is a late 492BP, that corresponds more to the 494A, while some of the earlier have quite different phase locked loop system. Perhaps one of the more efficient ways to see what version you have is to look at the back, for the EXT reference connector, if that is present, see if it will detect a external 10MHz reference.
BR.
Tg
Thanks Thomas. I have a LPKF machine I bought surplus so knocking out the boards is easy. I have the stripboard sections already milled but I need to find a set of connectors to complete the assembly. I’ll look on Digikey but having a part number would help as search engines can be a pain!
73,
Sam