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Hey, don't discount the 5110's low bandwidth; it's great for audio.? While I appreciate a GHz scope and have several S-4 sampling heads, a 7S12, a 7S11, and a couple of 7000 series mainframes, for low frequency signals, the 5103N D10 with its low-noise, razor-sharp traces is the winner.? Dead simple to work on, too.? I call mine Low and Slow for Audio!? ? ? ? Jim FordSent from my Verizon, Samsung Galaxy smartphone
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-------- Original message --------From: Andy Warner <andyw@...> Date: 5/7/21 7:29 PM (GMT-08:00) To: [email protected] Subject: Re: [TekScopes] 577 D2 question(s) Thanks for the pointers to 5110 scopes having the same tube. I was luckyenough to have a friend of a friend who had a late model unit gatheringdust.I swapped the tube, and now have beautiful, crisp, bright traces.I agree with Eric that this is a far nobler use for the tube than in alow-spec 'scope.Greatly appreciate the advice and suggestions.On Thu, May 6, 2021, 18:45 - <rrrr6789@...> wrote:>?? The TV CRT rejuvenators simply place an excessive voltage on the filament> in the hope it will burn some of the "glaze?" that have built up on the> cathode and that that will increase the electron emissions from the> cathode. IIRC they would apply about 16 volts to a 12 volt filament. IIRC> you were only supposed to use the "boost" for about 5 seconds at a time and> no longer. And no more than three such boosts. Usually by the time that> people brought in their TVs for repair the picture was so bad, and the CRT> was so worn out, that there wasn't anything left to lose by attempting to> boost the CRT. The rejuvenators usually did help but only to a limited> degree and I think that the improvement was very temporary.>> On Thu, May 6, 2021 at 2:55 AM Martin <musaeum@...> wrote:>> > On Wed, May? 5, 2021 at 05:44 PM, ChuckA wrote:> > > I've had good luck using a Sencore CR-70 restoring? a TDS-648A and a> > HP3562A CRT....> >> > Hi Chuck,> >> > do you, or anyone else, have an idea what the Sencore and other> > rejuvenators are actually doing?> >> > cheers> > Martin> >> >> >> >> >> >>>> >>>
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