Keyboard Shortcuts
ctrl + shift + ? :
Show all keyboard shortcuts
ctrl + g :
Navigate to a group
ctrl + shift + f :
Find
ctrl + / :
Quick actions
esc to dismiss
Likes
- TekScopes
- Messages
Search
Re: New to Tek 465B operation
Thanks everyone for the great advice! I¡¯m looking into that probe now...
I found a complete service manual, it says for serials below 30,000. I have a newer 465B with SN:B045757, is there much difference in the manuals? I¡¯d guess the procedures are the same and the schematics are different? (Should I find and print a new one, or just reprint the schematics). I was looking for particular sections discussed on other forums and became lost. There are many out there. The 465 and 465B are similar, and the 465B has 2 or more revisions. If I had a newer eye prescription I would have seen that before printing, LOL! Probes: I have pair of cheap Chinese 1-10X probes and the set that came with my Rigol. Is the auto-set on the probes important to doing the calibration? It calls for 10X probes. The manual is pretty specific with other items; cable length, impedance, T connectors, BNC terminators etc... I have a Chinese DDS sig gen/counter that supposedly is good to 60mHz. What must have equipment needed to do things properly? So as not to mix up this thread too badly, after I go through the checks in the correct manual I¡¯ll start another. At the moment I¡¯d like to just get this unit fully functional. Again, I¡¯m new to all of this and really appreciate everyone¡¯s help. This is a great group! |
Re: OT! OT! --- E-bay fee change -- OT! OT! Cross posted with HP group.
On 28. Apr 2021, at 15:11, - <rrrr6789@...> wrote:
Thats the "thingy" I'm talking about, yes. You say it allows them to "suck money out of my account". What I do not understand is that they are already able to do that via my credit card. Buyers usually pay me via bank transfer, and Ebay charges the credit card with the fees. So they already can do it, why to they need to do that "linking" business?? I've never subscribed to Paypal, but to what I heard is that once the money is on your account it cannot be taken back. But as long as its on a sort of intermediate "Paypal-account", thats a different story. cheers Martin |
Re: OT: Stabilizing Old Transformer Input Wires
You can consider a 2 part potting compound. A while back, I bought some Dow Corning Sylgard 160, which comes in dual tube 400 ml units. It is intended to be dispensed with a special "caulking gun" type tool with a mixing nozzle. It was originally intended for a solar panel project which never happened because I found some manufactured panels at a good price. I, now, use the Sylgard for general potting, etc. Instead of dispensing the entire 400 ml at once, I just dispense whatever small amount I want into a small container and mix it manually. It cures, at room temperature, in about a day - faster in the oven. Beware; Its very strong and sticky. I made an initial mistake of using a glass 50 ml beaker and allowed it to set up before cleaning the beaker. I don't know if I will ever get the cured material out without breaking the beaker. I'm very careful to clean the tube ends and cap completely before putting the cap back on after I'm through.
|
Re: OT! OT! --- E-bay fee change -- OT! OT! Cross posted with HP group.
<Sure... but how does this account thingy increases their revenue?>
toggle quoted message
Show quoted text
Are you talking about the switch from PayPal being the escrow agent to Ebay doing that themselves or are you talking about the fact that E-bay now wants to link to your bank account? The answer to the first should be obvious, Ebay, not PayPal, will now have the use of the funds while they are in escrow and will also get the fees collected. Cha-Ching! The second; while Ebay being linked to everyone's bank accounts may not directly produce revenue for them, it will eliminate any possible loss to Ebay in the event of non-paying bidders or items being returned or claimed as damages in shipping, or not delivered or not as described, etc. Ebay is going to suck the money out of someone else's account with or without their knowledge or consent, just like PayPal did. Nothing here is really new except that Ebay has stepped into the shoes that PayPal used to occupy. Effectively, they changed the name, but the game is the same. Ebay made billions when it sold off PayPal. I'm just wondering how long before E-bay places their NEW payment service into a separate part of the company and then sells off that division. Is there anyone here that doesn't understand the idom of "Rinse and Repeat!"? This reminds me of the scene of Burt Reynolds movie .The Longest Yard'. In it the Prison convicts are playing football against the Prison guards and things are getting rough and one guard is particulary agreesive and always charges trhough defensive line and *smashes* the quarterbark. Burt's character comes up with a plan, the defensive line directly in front of the guard opens up and lets him have an open field to the quarterback (Burt's character). But Burt is ready for him and throws the ball at him HARD and it smacks him directly in the nuts! Both sides reform their line while the guard wonders around in a painfilled haze. Burt then says to his team 'Hey, it worked the first time so let's do it again!". They all laugh and of course, they make the exact same play and the guard gets it where it hurts the most all over again. After that he's *out* of the game! I kind of feel that we the Ebay sellers (and consumers in general) are getting the same abusive treatment (right in our financial nuts!) over and over from Ebay and other greedy companies. Cable companies and ISPs are among the worst! They charge you for high price services but then don't deliver the promised performnce, then when everyone gets fed up with them and their business declines, they change their name, advertise heavily to regain custimers and do it all over again. Bright House/ Spectrum, are you listening? On Wed, Apr 28, 2021 at 4:53 AM Martin <musaeum@...> wrote:
On 28. Apr 2021, at 06:26, - <rrrr6789@... <mailto: |
Re: 7A16A with an unknown modification MOD515D
I wouldn't change it.
MOD515D adds to basic 7A16A the ability to remotely operate the band width,polarity and position functions. Very rare. I think was used in conjunction with a 7912 or 7612D. I don't know if it's usable in a 7854, but I think it is worth investigating further. Max |
Re: OT! OT! --- E-bay fee change -- OT! OT! Cross posted with HP group.
On 28. Apr 2021, at 06:26, - <rrrr6789@... <mailto:rrrr6789@...>> wrote:
One word? Greed!Sure... but how does this account thingy increases their revenue? What a difference does it make compared to the process in place today (using my credit card)? I'm just talking about the transits between Ebay and my account, not the rest which of course is greed... cheers Martin |
Re: OT! OT! --- E-bay fee change -- OT! OT! Cross posted with HP group.
"Actually what I do not understand: I already have Ebay getting its fees
toggle quoted message
Show quoted text
via my credit card, and vice versa if they reimbourse something. So why do they need anything in addition to that?" One word? Greed! When I started with E-bay their fee was 2% and there was no such thing as PayPal and you made our own shipping arrangements. On Wed, Apr 28, 2021 at 12:18 AM Martin <musaeum@...> wrote:
Actually what I do not understand: I already have Ebay getting its fees |
Re: 465 Electrolytic Capacitor Replacement
I hate to admit it here but I have used a very hot hot air gun to heat
toggle quoted message
Show quoted text
the backside of circuit cards until the solder melts and then slam the board down on a table to knock dozens of surface mount components off all at the same time. If the air is HOT and you don't have to heat the board for more than about 20 seconds, the components survive surprisingly well. But they usually scatter all over the place! You definitely don't want to do it in a room with a carpeted floor! On Tue, Apr 27, 2021 at 10:35 PM Jeff Dutky <jeff.dutky@...> wrote:
The PACE solder rework training has some interesting "methods" for |
Re: OT! OT! --- E-bay fee change -- OT! OT! Cross posted with HP group.
Actually what I do not understand: I already have Ebay getting its fees via my credit card, and vice versa if they reimbourse something. So why do they need anything in addition to that?
toggle quoted message
Show quoted text
I will stop selling on Ebay altogether and try "Ebay Kleinanzeigen" instead, here in germany. Fortunately I sold most of my items already. cheers Martin On 27. Apr 2021, at 20:26, Daniel Koller via groups.io <kaboomdk@...> wrote: |
Re: OT: Stabilizing Old Transformer Input Wires
Barry,
toggle quoted message
Show quoted text
Ordinary household silicone sealant releases Acetic Acid as it cures so you're right, it's not kind to most metals. But they also make an electronics grade silicone sealant that won't harm metal. I don't know if it's suitable for your transformer but I thought that you might like to know. On Tue, Apr 27, 2021 at 11:14 PM n4buq <n4buq@...> wrote:
I just don't know where there's an appropriate group for this so thought |
Re: OT: Stabilizing Old Transformer Input Wires
Use RTV that is labeled oxygen sensor safe.
toggle quoted message
Show quoted text
The bad stuff cures and releases acetic acid. You can smell it when you open the tube. The good stuff cures with IIRC methyl alcohol. 73 Glenn WB4UIV On 4/27/2021 11:14 PM, n4buq wrote:
I just don't know where there's an appropriate group for this so thought I'd ask here. --
----------------------------------------------------------------------- Glenn Little ARRL Technical Specialist QCWA LM 28417 Amateur Callsign: WB4UIV wb4uiv@... AMSAT LM 2178 QTH: Goose Creek, SC USA (EM92xx) USSVI, FRA, NRA-LM ARRL TAPR "It is not the class of license that the Amateur holds but the class of the Amateur that holds the license" |
Re: OT: Stabilizing Old Transformer Input Wires
Neutral/alcohol cure silicone should be fine. Just avoid acetoxy cure grades.
toggle quoted message
Show quoted text
Two pot silicone should also be OK as long as curing doesnt produce amines or acetic acid. Bruce On 28 April 2021 at 15:14 n4buq <n4buq@...> wrote: |
OT: Stabilizing Old Transformer Input Wires
I just don't know where there's an appropriate group for this so thought I'd ask here.
I have a transformer (out of a fairly old SOLA CVT) whose 115V input leads have become fragile right at the point where they enter the windings. It is good enough to get a wire spliced onto it but I would like to stabilize the point where it enters the transformer. This transformer was inside of a metal housing and poured with a generous layer of tar to stabilize everything - including the laminations as those can be noisy. While tar would probably work, I'd rather use something else and only at the point where these two wires enter the core to hopefully prevent further breakage after the splice is made. I'm thinking of making a small form at the end of the core around the wires and pour a potting compound of sorts in the form. My first thoughts would be something akin to silicone sealant but, as I understand it, that stuff is not kind to wiring. Roofing tar might work if it sets up firmly enough but, again, would like to steer clear of more tar. Is there something out there that would work well for this? Feel free to respond directly to me. Thanks, Barry - N4BUQ |
Re: NEVERMIND: Can anyone use a 453 P6010 (010-0187-00) probe?
Sorry, I meant Jeff, not Dennis.
toggle quoted message
Show quoted text
Never mind. DaveD On Apr 27, 2021, at 22:40, Dave Daniel via groups.io <kc0wjn@...> wrote: |
Re: NEVERMIND: Can anyone use a 453 P6010 (010-0187-00) probe?
Wow, Dennis. That came out of nowhere and had me laughing. I haven¡¯t thought of Emily or Gilda in a long time.
toggle quoted message
Show quoted text
On Apr 27, 2021, at 22:07, Jeff Dutky <jeff.dutky@...> wrote: |
to navigate to use esc to dismiss