开云体育

Question regarding 465B "free running"

n4buq All Messages By This Member #77760 If I turn both channels off, I get a "free running" trace. This trace is not vertically centered. Is it supposed to be centered? If so, is there an adjustment for that and where is it? Thanks, Barry - N4BUQ
Tom Jobe #77762 开云体育 I tried your setup on a 465B, and the AUTO trace was within one small division of being centered. I can't see why it would matter to me where it was on the screen, other than to please my symmetric mind. A look at the service manual may show you if an adjustment is available for this issue. Nice scope that 465B! tom jobe... ? ? ? toggle quoted message Show quoted text ----- Original Message ----- From: Barry To: TekScopes@... Sent: Monday, July 02, 2012 6:25 AM Subject: [TekScopes] Question regarding 465B "free running" ? If I turn both channels off, I get a "free running" trace. This trace is not vertically centered. Is it supposed to be centered? If so, is there an adjustment for that and where is it? Thanks, Barry - N4BUQ
n4buq All Messages By This Member #77769 I did a cursory look through the manual for this but didn't see anything. Quite a lot of info there so may have missed it (if it's even there). I just wasn't sure if an off-centered auto trace might be indicative of other possible problems. Thanks, Barry - N4BUQ toggle quoted message Show quoted text --- In TekScopes@..., "Tom Jobe" <tomjobe@...> wrote: I tried your setup on a 465B, and the AUTO trace was within one small division of being centered. I can't see why it would matter to me where it was on the screen, other than to please my symmetric mind. A look at the service manual may show you if an adjustment is available for this issue. Nice scope that 465B! tom jobe... ----- Original Message ----- From: Barry To: TekScopes@... Sent: Monday, July 02, 2012 6:25 AM Subject: [TekScopes] Question regarding 465B "free running" If I turn both channels off, I get a "free running" trace. This trace is not vertically centered. Is it supposed to be centered? If so, is there an adjustment for that and where is it? Thanks, Barry - N4BUQ
Tom Jobe #77772 开云体育 The behavior of your scope directly depends on the accuracy of your low voltages and their ripple levels, so have a good look at your low voltages before you come to any conclusions. Give the Tekscopes group a day or two, maybe someone will know something about?your question. There is a?lot of good knowledge on these Tekscopes groups. tom jobe... ? ? ? ? toggle quoted message Show quoted text ----- Original Message ----- From: Barry To: TekScopes@... Sent: Monday, July 02, 2012 11:23 AM Subject: [TekScopes] Re: Question regarding 465B "free running" ? I did a cursory look through the manual for this but didn't see anything. Quite a lot of info there so may have missed it (if it's even there). I just wasn't sure if an off-centered auto trace might be indicative of other possible problems. Thanks, Barry - N4BUQ --- In TekScopes@..., "Tom Jobe" wrote: > > I tried your setup on a 465B, and the AUTO trace was within one small division of being centered. > I can't see why it would matter to me where it was on the screen, other than to please my symmetric mind. > A look at the service manual may show you if an adjustment is available for this issue. > Nice scope that 465B! > tom jobe... > > > > ----- Original Message ----- > From: Barry > To: TekScopes@... > Sent: Monday, July 02, 2012 6:25 AM > Subject: [TekScopes] Question regarding 465B "free running" > > > > If I turn both channels off, I get a "free running" trace. This trace is not vertically centered. Is it supposed to be centered? If so, is there an adjustment for that and where is it? > > Thanks, > Barry - N4BUQ >
n4buq All Messages By This Member #77784 I would not be surprised if there is excess ripple as I'm pretty sure all the caps are original. Thanks! Barry - N4BUQ toggle quoted message Show quoted text The behavior of your scope directly depends on the accuracy of your low voltages and their ripple levels, so have a good look at your low voltages before you come to any conclusions. Give the Tekscopes group a day or two, maybe someone will know something about your question. There is a lot of good knowledge on these Tekscopes groups. tom jobe...

Previous Topic Next Topic