I have two scopes of my father's, one 475 and one 2213. The ground point on the front panel of the 2213 is just a banana plug socket, but on the 475 the ground point is a knurled metal post (looks lik

The following photos have been uploaded to the A5 repair attempt album of the TekScopes@groups.io group. Voltages at DAC divider.jpg By: Rogerio O

snapdiode added folder /pickup devices for vey-low-frequency reception

I just scanned in something that looks like the structure inside the P6042 head. I am puzzled why scanners don't have a "flip every other page" option, when you scan a book you have no choice but to f

I have encountered a situation which I have a Symetrix SX204 headphone distribution amplifier that needs 16VAC to operate but I have no such such supply that will offer that... However I have a 577 cu

Here is something interesting on the eBay site: https://www.ebay.com/itm/Vintage-Tektronix-Oscilloscope-MX-2330-G/193747752801?hash=item2d1c441761:g:cIYAAOSwcbpfrZ9u It looks identical to a Tektronix

Richard Steedman added the album Hack BSM plug: Photos of a plug which fits a BSM socket, made from a BNC plug and the poly insert and pin of a BNC socket. Shown in use displaying the pre-trigger outp

Hello - I have a TDS510a and a TDS640a, both have working batteries, but who knows for how long (I neglected to check the date codes when I had them apart). I have run tekfwtool and backed them up usi

The Tek App Note AX-2535 is by M. Engelson and is titled "Crystal Device Measurements Using the Spectrum Analyzer". I am usually good about finding web stuff but had to admit defeat looking for this o

Fellow Tekkies, I've posted a couple of 7L series modules I have up on Ebay, specifically a (working) 7L5 and a (non-functional) 7L14. Here's a link if you're interested. https://www.ebay.com/sch/i.ht

Guys: Here's a bunch of Tek' lit I've lately reworked, noting that I've posted this to several lists. The Cathode-ray Tube, 330pgs: https://www.pearl-hifi.com/06_Lit_Archive/15_Mfrs_Publications/35_Te

Hello - I need 2 of the Option 13 RS232/Centronics interface boards/cables/ports for a TDS510a and TDS640a (they're the same part for both scopes). I am not looking to pay fleabay prices for them, as

Bill, Really nice scans. Thank you for sharing. George

Hi, I'm repeating an earlier plea for anyone who wants to sell this interface board, or exchange for an RS232 board. Also interested in pens. Thanks, --Toby

I've got a Tek 475 that is almost 50 years old. It belonged to my father who used it in the late 70's as a service engineer for a manufacturer of laboratory instruments and data machines. My father to

While looking for the 212 battery end caps I also found what looks like a complete set of boards for a 2252. A few years back I needed crt and I picked up a damaged 2252 for next to nothing. I have to

Hi, I was wondering if anyone has a backup of the ROMs in the Tek 308? I have not found them on the Internet so far. They are 2316s and 2364s, two each. Thanks Tony

I just repaired a PG506, usual shorted cap in power supply. Getting to the caps required disassembling the beast (assembly cost must have been high on this). Anyway, I found 2 mica washers on the floo

And lots of interesting Tek and HP free items at the bottom. have a look around and scope out (no pun intended) all the stuff we have added for you this week. https://www.sphere.bc.ca/test/stuffday.ht

This is a new thread that is a continuation of the “Tek 4654M No Trace, No +5, No +95V Help” thread. I restarted the thread because of an error I made in the initial title, Identifying the unit (due t