The other day, I was given an SR760, presumably with a faulty CRT. I don't know where else to go for help, so I'm turning to you guys and girls. If someone can recommend a place to seek help, please d

Hi, I have a Tek 2235 serial (no letter) 203946 with a long persistence orange screen. On the front it states "opt 76", which I cannot find in manuals or catalogues. Could someone point me to more inf

Hello all: Having replaced the PSU (ref. 2465B Power Supply Precautions) have just powered on, J119 voltages perfect, test have some issues eg TEST 05 FAIL 42, but basically working. Had no trigger, t

Hello, I have been lucky to find a P6042 current probe with a fully functional coil and hall sensor. The only band thing is that the cable to the sensor was broken in at least 7 places. It is repaired

Hi, recently I have become aware of this group and the interesting topics discussed here. For more than 40 years I have been fixing almost anything as a hobby - from 1930s radios and all kind of TV se

Hi guys, Just putting the word out. I’m looking for a 465B tigger pot with switch, parts number: 311-1192-00 QService doesn’t have one at the moments. So if you have one for sale, hit me off line. Tha

With a spare HV multiplier sent from the UK by a fellow radio amateur, I managed to get the HV supply in my 465 working. (Has anyone told you guys that working on these things is NOT easy?) The HV pro

I am working on 2 Tektronix function generators. An FG 507 and a FG 502 both 2 Mhz. The 507 is on the bench currently and I am having a weird issue with the frequency selectors. Everything above 100X

Hi Jon, I always stick a repaired/recapped power supply on a dummy load and check its voltages on the bench before I put it into a scope. Saves a lot of frustration, and damage. If you know the supply

Hello all. My name is Joel B Walker. I have been interested in electronics all my life having grown up in my father's shop. I am a self employed repair tech, working on anything electronic plus any ty

I'm in the process of finishing up the recapping of my 2235A, it started out noticing the condition of the RIFA caps in the line filter and the main board along with the IEC inlet filter, and kind of

Harvey White wrote on 1/24/2021 8:00 PM: > Use a 74LS90, which is a divide by 2, and a separate divide by 10. <snip> Hello-- IIRC, the 74LS90 has divide-by-2 and divide-by 5 sections. If you need a di

Hi folks, Is there a way to tell (for example by serial number) which scopes had which version of the A5 board? I am aware of 3 variants 1) leaky surface mount electrolytics 2) through hole electrolyt

I've been trolling the "pile of miscellaneous parts" auctions/sales on eBay in an attempt to cheaply bulk up my supply of consumable probe accessories, and I hit a few jackpots, but now I need some he

Hello all. I have a Tektronix 475 that I have been working on. I've got it repaired electrically so now comes the mechanical repair. It has 2 good volts per div knobs but the silkscreend values have b

are the posting getting fewer or is my email on getting them.

Is Shawn (KJ7MX) on here? I'm asking in reference to the eBay listing for printings of the 2236 manual: https://www.ebay.com/itm/Tektronix-2236-Instruction-Manual-Comb-Bound-Protective-Plastic-Covers-

Hello all! I've got a 7000 Series Standardization Plug-In 067-0587-02 that is acting strange. Sometimes the Gain setting on the TEST switch will show a compressed set of lines instead of the correct 1

Hi, Where is the service hours and power cycle statistic stored? Is it in the Dallas chip? I am about to buy 2467B which looks in excellent condition and was recently serviced. Since it shows only 4 p

Hi Have just obtained a new to me 7l12--it seems to work somehow--if filters-video span etc works--but dc feedthrough 150Mhz off--when tested with 50Mhz cal signal --it is located 150 off and span see