Recent content by Corri

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    Tek 475 scope

    73's de Edd I will try to make myself more clear. Starting with meter on DC. Test points as you clearly described, starting with gnd. and continuing in clockwise rotation it is +15/+.0000, -8/meter shows only.0000, +110/-.010, +50/+.0000, -15/+.0000. To be more clear on minus/8 and minus/15 the...
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    Tek 475 scope

    OK, you will probably give up on me but this is what I have.On the caps, using meter on dc. c72-25.19, c62-13.77, c52-12.93, c12,14,42-0. On ac, meter goes to .025 0n c72,62, 52, 12, 14, 42. Same with cr62, center legs .025. With meter on dc, using ground as shown the meter instantly goes to...
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    Tek 475 scope

    Scope back together and this is what I have. AC supply at 122.4 v. c1462-3.446v, c1452-13.22, c1472-13.02, cr1462-3..44v. I don't know how to get readings on the other cr's. Cr1462 is mounted high enough to probe it but the rest are mounted flat to board. Is there a way to check them that I...
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    Tek 475 scope

    dorke, I don't know if you will read this but I just want to apologize for my response to your post. I was out of line and am sorry for it. I could tell you what lit my fuse but I was wrong and will not make excuses. Best of luck in your life.
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    Tek 475 scope

    Thank you73's de Edd, for an intelligent and very helpful post, with even a touch of humor. I was confused as to which solder post were the lytic +and- post so I removed trigger gen. board to see what was what. Of coarse I found the caps were four pin which were new to me. Now I know where I...
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    Tek 475 scope

    I cannot be sure which one of these solder spots are the caps you need. Anyhow dorke, don't you think seeing as how we have no voltage on most all test points that we have a supply problem? Whoever was in here before obviously didn't find an easy fix and probably didn't want to go to the trouble...
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    Tek 475 scope

    Having a problem up loading picts. Will check caps and be back.
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    Tek 475 scope

    Will be back to you in an hour or so. Thanks
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    Tek 475 scope

    Yes, I was using test points. F1318 is on left corner of board, just above transformer. I hate to appear dumber than I am but the way these solder pads are laid out I am not sure which pads are the caps. Any help there?
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    Tek 475 scope

    Sorry it took so long to reply, had company. Ohm readings: through power cord 6.4O, through on off switch, 115v230v switch through medium switch, all 6.4 O. AC v same switch's, 122 v. low v dc. -15-.015 -8-.061 +5-.053 +15-.015 +50-.015 +15-.015 +110-100v high v-0 f1318-26.34 Using ohms law I...
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    Tek 475 scope

    Yeah dorke, I'm ready. Also, I didn't mean to trojan horse the forum. I am learning and have limited electronics knowledge, but I do have most of tools needed to check things out. I also have a 475 scope that works fine though I have never took the time to really learn how to use it. I know...
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    Tek 475 scope

    Thanks hevans1944, every bit of advice helps. Also, I am 86 and with ALS and REALLY like to restore old things, does that qualify me for the old folks?
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    Tek 475 scope

    Thanks dorke, I did buy a download manual and it had been scanned nice but the original owner had felt a need to scribble notes on the schematic and then draw long sweeping arrows to whatever he/she was referring to. Being that the scribbles covered up the very thing I needed, it caused a...
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    Tek 475 scope

    Just bought this scope on ebay, just for something to do. Never been in a scope before. I got interested in electronics a couple of years ago, built several solid state guitar amps, changed to tube amps, all the while trying to learn something. Got a looong way to go. Anyway, I pulled this baby...
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    Capacitor question

    My apologies, the cap is 470uf rather than 430uf. Thank you for the answer Harald, that is exactly what I needed to know. Corri
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