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  1. S

    Woo Hoo HP5316A

    Does the HP5334B have the 010 Oven Osc Option? The HP5316B has a warm-up of +/- 5 x 10 -8 of final value after 20 minutes, which pretty darned good. (With your Option 4 Oven Osc). I know you're obsessed with accuracy (which is a good thing), but the specs appear to be very good for almost any...
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    Air Quality Monitoring

    Unless there are new sensors out there that I don't know about, I don't see how you can do this. I've worked air quality monitoring for health departments where I'm at, but we were looking for accurate readings and required separate instruments for each pollutant. We used high-volume samples...
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    Electric Guitar Guts

    I don't know, but it kinda sounds like maybe your amp has a fault, and not the guitars(?)
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    LED Christmas lights gone dim

    My thinking is along *steve*'s . You've got a single point failure in the dim string. Sounds like a job for your granddaughter. I'd ask her to help you out by pulling and replacing each LED bulb in the one string, to try to localize the socket (or bulb) that's the culprit. Who knows, maybe...
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    Time to start building grow lights!

    We're kind of non-conformists. We don't like anybody telling us what to do. From ex-Governor Brewer waving a finger at Obama on the Phoenix airport tarmac, to Sheriff Joe Arpaio under federal indictment for putting illegal aliens in prison tent-cities, .... Way back when, Football teams...
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    Time to start building grow lights!

    I read that in the States where they legalized pot, Beer sales are slumping. Hoping for some beer sales. They'll need to compete.
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    Advice/info please - my surround sound has stopped working

    Sheez. I thought Chris Bristol said 'I wouldn't have the skills to fix it myself'. Maybe I read that wrong.
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    Christmas Light Problem

    Like KTW said, might be the wrong replacement bulb. He's my many Xmas tree light repair experience: 1) Make sure the socket is the right one for your string. Some sockets are deeper or wider, or strangely shaped, and universal replacements don't always fit. Try taking the bulb out of the...
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    Advice/info please - my surround sound has stopped working

    At first I thought maybe it was your remote, but you then said you have the same problem when you depress the "ON' pushbutton on the unit itself. I know you don't want to hear this, but it sounds like you have a problem that is going to take a repair technician to localize and repair. If I were...
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    LED Celling stay glow.Can I stop that?

    I'm trying to figure-out how flourescents got involved here. (vs. Stardian101's original post) My thinking is like yours Audioguru, but I've heard from a couple of guys (on this site) from some smaller countries, claim some pretty screwy wiring schemes for the 'neutral' in their wiring. I have...
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    Plasma Globe power supply change from AC to DC

    It's so hard to troubleshoot something without looking at the circuit itself. Did you try looking at the globe in total darkness to see if you're seeing even weak lightning bolts inside that globe? Is there a trim-pot attached to the circuit to adjust the voltage? Is it possible the globe...
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    LED Celling stay glow.Can I stop that?

    I'm still thinking this has to do with leakage current through the diodes (the LEDs are diodes). I don't know the electronics skill level of Stardian101. Modifying a new unit is always questionable to me, but I imagine having the LEDs dimly 'ON' continuously when you're trying to sleep is a...
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    detect solids levels in a box

    I'd consider an optical break-the-light-beam type, with a light source and an optical sensor. You can use multiple devices if you're trying to cover a large area, but I'd use one light source and photo-cell detector with a few mirrors to direct the light beam across the entire top of the...
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    LED Celling stay glow.Can I stop that?

    I don't know your electrical grid or the unit. My suggestion, if it's possible with whatever your electrical system is, to reverse the polarity if this is an AC unit (Turn the plug around?), and see if your power grid neutral is the issue. (I am completely unfamiliar with what you have there...
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    Ancient Best 10KVA UPS

    Keep looking for a schematic or directions on that reset value. What I remember is the UPS's I worked on were wired so you couldn't just 'disable' the low voltage indicator. It may be a pain, but it might have to be done. Engineered by the mfgr to protect their equipment. I doubt your low...
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    Cant get a voltage reading off an working AC/AC Adaptor with a multi meter ?

    I had a few of those multiple voltage adapters. The biggest problem I had was that the switch itself sometimes wasn't fully aligned in the right position for the voltage I selected. You might wiggle the selector control a little to see if you can get the correct voltage. Otherwise, I would...
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    Ancient Best 10KVA UPS

    I worked on several different models in the past, they all had their own procedure. I just Googled 'Resetting Low voltage on Best B610010KU UPS', and went to the site 'User Manual Powerpack SE Series 1-10KVA' You've got to scroll down and check the different selections. Near as I can tell on...
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    Is it possible to use a rca female as video output

    I guess we need to know your application. Almost all video used to be connected to monitors via RCA plugs. All the new connectors came into use when primarily analog signals became digital signals.
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    Will it effect laptop's battery if I use charger connected when fully charged?

    Good that you're aware of the issue. I found out about the spyware on Google. I don't remember what the remedy was, but I downloaded it from a Google search to remove it. Enjoy your new computer!
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    Ancient Best 10KVA UPS

    It's been a lot of years, but you have an 'ancient' UPS. I remember the models I used to work on, I had to reset the value on the Low Battery Detection circuit after I changed the batteries. I doubt they'd mention that in an Operator Manual. Check if you have any information in any references...
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