Another post failure solution: Checking one of my CA units showed that sometime in the past someone experienced this problem and epoxied the metal shaft to the ID of the Delrin rotor. One of the arms

Quest Components shows many 2N4240 available in small quantities at prices much more reasonable than *bay: https://www.questcomp.com/ And they have flat rate shipping. Shaun Merrigan

Zen, I had a similar problem (double time marks) on a TG501 unit several months ago. It turned out that one finger of the drum switch assembly was not opening when it should have due to mechanical dam

Dave, What you are describing sounds like sticky-shed-syndrome which is described here: https://en.wikipedia.org/wiki/Sticky-shed_syndrome . This has been well studied and documented in both vintage c

Colin, I purchased the parts for this project from Mouser in January of this year. The Grayhill switch we are discussing arrived packed a plastic tube and included the pins, stickers and paper instruc

It is; I just finished building and testing V6 and I am very happy with it. Shaun Merrigan

On Tue, Jul 20, 2021 at 02:13 PM, <Zentronics42@...> wrote When the design is checked and tested If there Eric, I am certainly interested the boards as well. Thanks, Shaun M.

Cory, Regarding Tek temperature probe prices, a bit of patience and saved searches on eBay can get you a good deal. For example, I picked up three Tek temperature probes for just over $USD 50 in May.

Unfortunately, McMaster Carr chooses not to do business with individuals in Canada so we northerners must look elsewhere. Interestingly enough, I ordered from them when working for a large company in

Jeff: The threaded brass inserts you mention work fine on all my Tek plug-ins here: Chinese brass inserts 1/4-28 x 7.5mm. They are easily tightened down by hand and lock down snugly. Now, the colour d

Foks, I have some experience with the Russian 6N23P tubes from various vendors. To summarize: Most vendors I have dealt ship from Ukraine and the shipping time can be quite long (up to 8 weeks) to Can

The Schaffner filter, yes. They are present in many of the coveted HP products such as the 3245A Source unit and the venerable 3458A DVM. The failure of these filters is also well documented and good

VintageTek had several of these for sale on the Bay last week. Hopefully some of our members managed to acquire one. And it also helps out the Tek Museum of course. https://www.ebay.ca/itm/11483012318

Folks: I have recently refreshed a pair of Type 114 Pulse Generators as follows: Both have serial numbers > 1680 and so are the latest revision in the manuals that I have Both had leaky PS filter capa

Mac, Thanks for posting this. I encountered exactly the problem you described and I had just started to troubleshoot it: I thought perhaps I had a bridged solder connection somewhere. Problem solved!

Larry, I am interested in a group buy of the board set. Thanks, Shaun M.

Folks, Best of the Season to everyone, Just as a counterpoise to John's message, I have a big stable of old TEK CRT gear waiting to be restore and I am just about to retire from my day job (Materials

I did a search and somehow this one slipped through the net: https://www.electronicdesign.com/technologies/test-measurement/article/21137778/the-tektronix-function-generator-teardown FG502 Teardown an

Hi Richard, Picked them up from the Calgary e-recycling depot. This is old Calgary (railroad and industrial) along Ogden Road SE. Heretically, I am an Edmontonian, but TEK ignores such petty boundarie

Just wanted to share with the group that I picked up a pair of RM547's for $cdn 33 + gasoline: About $cdn 88 ($usd 67) total cost. They are mechanically complete,have all their tubes and a patina of A