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Ok need to try to get this working.. need to verify what is causing this failure..? How do I determine whats really wrong.. if its really U800 how do I test it to verify its bad.. NEED HELP.... Skip

Certamente… ! Ho lavorato alla SGS Agrate Brianza qualche anni è ho ancora qualche prodotti, se ha problèma per ottenere Saluti Jean De : [email protected] [mailto:[email protected]] De la

Hi Jean, thanks a lot for the tip. The transistor eventually to be replaced is in the vertical final stage of a T935A and the VCeo = 12 V is absolutely fine. Can I ask you some other advice? Thank

That's a great link, too bad they didn't use DJVU to encode it, 121MB is a hefty boy for sure.

Hi Franco I just checked for 151-0434-00 as used in a TEK product. I would recommend to try 2N2894, it is a fast PNP switcher originated from SGS Fairchild. The VCeo is 12 V, so have a look on the

Hi all, For those who are interested in this thread and are following it, here’s a quick follow up. I had put the 547 aside for a bit as I was also working on restoring a quite old and early 465. I

Thank you very much. FZ Da: [email protected] <[email protected]> Per conto di Michael W. Lynch via groups.io Inviato: venerdì 27 maggio 2022 15:22 A: [email protected] Oggetto: Re:

Thank you very much. FZ Da: [email protected] <[email protected]> Per conto di Dave Wise Inviato: venerdì 27 maggio 2022 16:51 A: [email protected] Oggetto: Re: [TekScopes2] T935A - Meaning

https://w140.com/tekwiki/wiki/Common_Design_Parts_Catalogs Sent: Friday, May 27, 2022 5:21 AM To: [email protected] Subject: Re: [TekScopes2] T935A - Meaning of sentence in service manual Hello

Franco, I always start with the excellent "TEKTRONIX Semi-Conductor Common Design Parts Catalog". at this link: https://w140.com/tekwiki/images/0/06/Semiconductors_Common_Design_Parts_Catalog_1982.pdf

Hello everybody. In your opinion, how do you find the commercial equivalent of a transistor signed with the code TECTRONIX for example 151-0434-00? A thousand thanks. Hello. FZ Da:

There is a 2466BHD for bid on the auction site; seller is in Nara, Japan. I've never seen one of these for sale before, only read about them on TekWiki. The auction title is "Tektronix 2466BHD HDTV

Thank you very much for the hint. FZ Da: [email protected] <[email protected]> Per conto di Dave Wise Inviato: giovedì 26 maggio 2022 16:31 A: [email protected] Oggetto: Re: [TekScopes2]

In cases where the trace is deflected beyond the edge of the screen, a standard debugging technique to determine the stage that is faulty, is to short together opposing sides, starting at the CRT and

Therefore the fault should be in the stages preceding Q4376 / Q4386, i.e. in the initial stages of vertical switching circuits or vertical input circuits. A thousand thanks. Da: [email protected]

Ahead = before

Good morning everyone. My name is Franco and I live in Italy. I am repairing a TEK T935A with the help of the service manual. In the chapter Troubleshooting Hints/Vertical Symptom 1 I find this

Hi Jon, I sent you a PM. ?I am in Paris. Stephen.

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

Hi all- just acquired a 2335 ( cute little bugger, excellent cosmetics), no raster, all voltages good( no ripple), except problem on the a15 board Z axis, near TP130 voltage was wrong, problem found-