Hi guys, my first post here. I have been given a Tektronix 2230 scope. The previuos owner could remember het go it from somebody else, and there was something about a fuzzy readout. I always find it a

The following photos have been updated in the Sampling with 3S2 album of the TekScopes@groups.io group. Avalanche pulser, 85 volts with RC snubber By: Charles <charlesmorris800@...>

These little gain adjuster adapters for setting the main vertical amplifier gain in 530 540 and 550 mainframes show up on eBay frequently and are not super pricey. I have a couple now. While not used

Just finished a big photo session allowing us to put up lots of interesting Tek, HP, Fluke and RF gear. Also some nice looking older items in the (ironically new) Antiques section. Some of the RF stuf

The following photos have been uploaded to the Sampling with 3S2 album of the TekScopes@groups.io group. 0312211437-00.jpg 0312211437-01.jpg 0312211445-00.jpg 0312211446-00.jpg 0312211454-00.jpg 03122

Hello everybody, I would like to calibrate a VHF band pass filter using the tracking generator TR503 (converted to TR502) and the SA 7L13 in the mainframe 7613, but I have the problem that they have a

Hi *, I start this new thread on the new issue seen after fixing the PSU issue from now ended topic: https://groups.io/g/TekScopes/topic/79486087 ;o) Hands back on the 485and starting from some Servic

I bought this scope earlier this summer as new old stock, never powered on. Due to covid illness I never opened it until a week ago. The scope powered on ,but the trace only covered about 2/3s of the

Hi, I have successfully retrofitted the 5S14N sampling plugin with readout for use with the 54xx scopes, by basically recreating the 7S14 readout board and wiring it in, thus creating a 5S14. See the

Greetings All - I was lucky enough to snag the 015-0408-00 Peak to Peak Detector plugin that Sphere had on their stuff page. I'm wondering if anyone has any documentation on the 015-0413-00 detector h

Hi All: Yes, there are some threads about beeswax... and many more posts about beeswax, in other threads too... usually about using beeswax in/with transformers. In this tread, I want us to try to get

So, I am a new member and maybe this topic been discussed before.... I recently was trying to use a 1A1 plugin in my 1956 type 531... Have some issues with it.... Reason for joining. While I was worki

In case anyone is interested in the 1S1 Sampling Unit, I uploaded some pictures of a risetime test: https://groups.io/g/TekScopes/album?id=261760 The time/cm is set to 0.1 nanoseconds/cm and the scope

I got another 7854 scope to check and eventually re-calibrate. The scope is in very nice conditions, with options 03 and 2D installed. Fully functional. Serial No. B063304. Its interior shows no signs

All domestic USA TM500 tester board sets have been delivered. All but three international shipments have been delivered. Deliveries of one set each to UK, France and Germany are still pending, though

The following photos have been uploaded to the Sampling with 3S2 album of the TekScopes@groups.io group. 0310211714-00.jpg 0310211717-00.jpg By: Charles <charlesmorris800@...>

Hello All I have a 7704A with 2 x timebase: 7B53 and 7B50 The 7B50 has developed a fault suddenly and the screen is now all lighting as green and cannot see the trace anymore when using this timebase

One of my 561's has a severely double-peaking CRT and it's not that bright. Voltages are in spec. It's probably not worth locating and buying a new CRT (especially if the USPS is going to handle the p

Hi all, I managed to shot one channel of my SC502 when repairing an old TV set. It seems the victim is a dual FET in the input differential amplifier with TEK part number 151-1031-00. To confirm its i

Hi, everyone. I've been working on a Tektronix 606A XY Display but the unit resists all my repair attempts. So, I'm reaching out to this group for suggestions and assistance. I've documented my proble