Thank you one and all for your suggestions on removing the potting. Your suggestions fell into two general categories: 1) Nasty chemicals which I decided had to be avoided at all costs based on your a

Few things are as frustrating as when the vertical knob on a Tek scope is damaged, by cleaning (hah, you didn't know the printing washed right off, did you?) or mechanical wear or other damage. Many d

Hi Dana, The Rockland Instruments 7530A and 7530B Spectrum Analyzer plugins for Tek 7000 scopes are outstanding, and unique, Spectrum Analyzers. In the mid-1970s Rockland Instruments was a small compa

Hello everybody, I have followed this forum for a couple of months. Seems to be full of information. I have just re-capped 7603 mainframe successfully. Both vertical slots basically work (tested with

Hello, sorting some of my plug-ins in very different condition I have come across the following "almost twins": 1. A well known CA plug-in, in working order, has always been a good work horse with my

Hi all, I recently got myself an SG503 Leveled Sine Wave generator for a good price and I am currently repairing it back to operational condition. I found a few components in the oscillator section we

?Does anyone know a fix for the question marks that keep being randomly inserted in my posts? <--- That one is intentional :) Dave Wise Safari under MacOS

Long shot here... does anyone have a case that fits a Tek 114 pulse generator? I got the chassis many years ago with a missing power transformer. Rigged up two transformers (the smaller one is for the

It didn't help. Sorry group, I guess from now on I'll have unintended question marks here and there. Bear with me. Dave Wise ________________________________ Sent: Monday, February 22, 2021 1:55 PM To

I just want to mention again that all the issues raised with regard to module extenders are important, and no matter which route you go, the result is always a bit sub-optimal, and awkward on the benc

Hi folks I´m looking tunnel diode in curve tracer, I don´t understand because the retrace, jumping lines are straight and no in cross pattern https://w140.com/tekwiki/wiki/Russian_tunnel_diodes#/media

I'd appreciate the enlightenment why somebody dished out >$500 for a PG506: https://www.ebay.co.uk/itm/Tektronix-PG-506-Calibration-Generator-/224356816953 A few months ago I was the second highest bi

So, with all the Mainframe Tester PCB's being sent out recently (thanks Larry!), now is the time for a construction thread for all the questions and info and notes etc on putting this together. As a r

I managed to understand the working and schematics of the 7854's digital section since I last reported this issue, and fixed the problem. For posterity and for the benefit of anyone who is trying to t

To avoid any possible mistake I bought the 2465b with frequency and TV trigger option(picked up locally) AND the 485(to be shipped next week)! There is also a 468 in claimed good shape for like 110 bu

Hello, I own 2 "type 454" scopes togetre with a "type 491" spectrum analyser. The high voltage transformer (T1430) of one of the scopes is dead. Who could tell me where to find one, and at what cost?

Tom Lee wrote on 2/20/2021 9:25 PM:<snip> ....You could make them in dirtyrooms (take a look at early die photos of ICs -- you can see all sorts of crud; apparently, the industry then relied on cigare

My 2467B >B052xxx suffered two nasties! (The processor board caps exploded and subsequently ate up some of the copper traces near them underneath the solder mask layer. (tough to see) Also my sram bac

The following files have been uploaded to the Files area of the TekScopes@groups.io group. /067-0513-00 Tunnel Diode Pulse Generator.pdf By: Dennis Tillman W7pF <dennis@...> Description: The Early Use

I just can't seem to get rid of things, a local ex-service center guy just dropped off a big pile of gear with me, so I am offering it free to anybody interested. There's Heathkit, Sencore, RCA and B+