Dennis – I hope you don’t consider this off topic. It is not on repairing a classic Tek scope – but an aspect on how they were made. After reading the posting from the Peter Keller on the Coketron, it

Due to a freak accident, the shaft of the Variable Holdoff potentiometer broke and I need to replace it. The details are: R9521 311-2146-00 Res, Var, Nonwir: 50 ohm, 20% 0.5W CM41773 It is a Clairstat

Peter Keller asked me to pass this along to the group. I'm sure he was smiling the entire time he wrote it. Dennis Tillman W7pF I guess it is time for the real story of the Coketron to be exposed. The

Hi Folks - I'm seeing an intermittent intensity modulation at line frequency on my 564, and have been unable to measure the source. I've tried both a 3B3 timebase, and a 3A72 in the horizontal slot wi

Hi all, I recently picked up a P6137 scope probe for a song and thought I'd try my luck. Predictably, the center conductor on the cable is open circuit..... Is there any way to repair or replace this

Hi, On my 2465, the Ch1 BNC is slightly "loose", and the signal is intermittent depending on which way the probe cable/connector tugs on it. The connector seems to be integral to the A10 attenuator as

Hi guys, im looking for a missing knob of the trace positioning (see pic below) https://i.gyazo.com/8e018f12acdef8d57bc2c949135d350f.jpg The original part number is 366-1027-00, unfortunately i cant f

Hi, I recently adquire this unit I had a diplexder and WG so to be able to increase the 21GHz frequency but this unit does not go over the 21GHz limit. It does not appear to have any options but it do

Hi Group, Some years ago I got 2 basket case scopes. The problems involved a leaky diode and bad trigger chip in one and for both I decided to remove the batteries, and not have them internal to the s

Hi all, I have been accumulating TM500 modules and mainframes for a little while, so I recently finished building an 067-1201-99 TM500 mainframe tester from the Tek construction notes floating around.

Hello All I have a 2247a and when I put it in the voltmeter mode and pick Peak to Peak the cursers are not touching the peaks of the wave form. Is this normal or do i need to get the service manual ou

All: Looking for a replacement Probe tip for P6133 - This could be 206-0265-12 or 206-0265-13. New or Good Used would be fine. Anyone who has and extra one and would be willing to sell it, please cont

Is there any source for the slip-on "grabbers" for the P6105 probe. These are Tek P/N 013-0107-0. I seem to have lost one. This will teach me not to keep a trash bucket under the scope on the scope-mo

The following photos have been uploaded to the Tek 492BP album of the TekScopes@groups.io group. Tek_492_SwitchSettings.jpg By: d.schilling.net@...

Hi guys ! The newbie is back ! Some news : PSU of the 485 delivers proper Low Voltage, I had to adjust the calibrator amplitude (the 5V was out of spec +/- 5mV). I've been checking (visually) several

I have read a copy of the email from Mark Fletcher very carefully line by line. (although I am annoyed I did not receive a copy sent to me directly). As I understand it these price increases DO NOT AP

Carl Hallberg added the album Tektronix 214 storage scope: Converted internal battery operation to external 12 Volts source #Tektronix214 The following photos have been uploaded to the Tektronix 214 s

Is this relevant to this group? [HP-Agilent-Keysight-equipment] Massive groups.pricing increase - we need a plan B. However, it seems that groups.io are going to be changing their pricing https://beta

The ongoing discussion of the power supply tester has caused me to investigate the TM-500 series. I found it interesting, was able to get some items, and am interested in buying an SC501 scope and oth

Greetings to all, I have an old T912 that no longer shows traces on the CRT screen. I checked and the 2.7 KV on the cathode of the CRT is missing. By disconnecting the diodes CR463 and CR465 from the