Hello all: updates: 1/Brad... I have never seen a Tracking gen OPT 25 without the 7L5 itself. Only solution is to find another 7L5 already with OPT 25 2/Miguel: I have just obtained the 7L5 after mont

Bonjour I forgot if the 2467 has SMD or TH A5 board If SMD board every radial bypass lytic potentially leaks corrosive electrolyte especially near the critical Vrefand DAC area. Besides voltage check

David, sorry for the notes in French, somehow thought those messages were PM, bu my mistake.... Agree the forum should be in English! Anyway a kind member nearby in Paris has already arrnged to assist

Bonjour cher Bernard, merci beaucoup, déjà Stephen et moi avons une réunion à Paris 14 eme demain. Nous pouvons quand même rester en contact ! Bonne journée, Jon

Hello all: I have a TEK 7L5 with tracking OPT 25 in Paris. I need to test it out, but I have no mainframe...Anyone in or near Paris that has of know of a working 7000 eg 7603, 7704? We could RDV meet

5000 = 4700 poly + 330 pF mica or NPO Jon

Barry bonjour As power electronics designer and manufacturing over the decades we have accumulated and used variacs in all sizes and types. Any mains powered device with a metal housing must have a 3

The adapter sockets are not robust , for 576, 577, we made DIY adapters 4 term - 5 bananas of test fixture on curve tracer to 3 term 2 wire, then clip leads. Jon

check HV and CRT circuit common symptoms of bad HV transformers or voltage multiplier j

Rebonjour à tous The EEVBLOG links are indeed useful. This procedure is easier to do than to discuss. Just setup and try a few times, it will soon become obvious. As each cal proceedure is independent

Hello again, there was a video or diagrams on the techniques perhaps not on tekscopes but EEVBLOG. Search entre forum, as several categories may have it, https://www.eevblog.com/forum/ Jon As

Hello: This topic was covered in old threads on this forum or also Tekscopes2. But search 2465B Horozontal calibration rather than 2465 (similar) The explanation needs a few pix to appreciate the manu

James 55:Some of the discussion , is now far afield...eg lockin amps and IR cams like killing fly's with nukes'. TSHOOT LOGIC: The TEK manuals have very fine flowcharts for testing PSU and other parts

we have excellent scope photos with an iPhone 7 and 11 no usb or files transfer and fast turn on Jon

Hello we have many C-52, 53, from 1980s..1990s, beautiful machines, had all the adapters, pol backs etc. https://w140.com/tekwiki/wiki/C-50_series_cameras We now have adapted some of the camera bodies

Mr Leach, fine questions.... Have experience since 1967 with both tube and solid state analog and since 1992 with digital scopes. 1/ as the decades progress the BW required went up, and Tektronix was

Hello again We have many 7A26, the issues you mentioned are common. LF /DC cal is the first priority. Afterwards HF comp and finally transients response. Be sure of your calibration sources. 1/ RE att

scratchy or changed resistance potentiometer? lube or control cleaner? jon

Barry I have no experience on 7514, but most 7000 mainframes use single or double row inlune black Molex or AMP flat ribbon cable to PCB connectiors, one name is "harmonica" style. BEWARE!! over the d

Bonjour cher Monsieur We have 576 and 577 for decades. ours were from local auction and Ham radio Fleas. Typically shipping them is risky as the CRT and panel controls are easily damaged, sine they ar