Won an *bay-auction today:
A HP 437B powermeter in good working condition for less then 120EUR incl. shipping.
Have to acquire power sensor(s) now..
It's another item from the service manuals test instruments list of my signal generator.
Getting a working power sensor cheaply is the hard part in my opinion. They get killed from excessive power, are beyond economical repair if the sensor is blown, and many are offered untested, as-is, making buying them a gamble.
Getting a working power sensor cheaply is the hard part in my opinion. They get killed from excessive power, are beyond economical repair if the sensor is blown, and many are offered untested, as-is, making buying them a gamble.
Yes, I know.
I hope that the HP 8482A Power Sensor sold as "Tested and working condition, pulled from working environment" I just bought on *bay for ~130EUR (after some negotiating with the seller) +35EUR shipping + customs (
how much..?) will proof being a good buy. *fingers crossed*
A 11730A Power Sensor cable (50EUR incl. shipping) will be shipped tomorrow.
Power Meters seem to be like lathes:
The machine itself may have a given price but the tools and accessories will easily multiply that.
Tested the AVO 15V battery, and it is dead, shuffled off this mortal coil, gone to meet it's maker Ever Ready. Replacement will be easy, going to strip the case off carefully, then remove the stack of waxed prismatic carbon cells inside there, and grab 5 Cr 2025 coin cells as a replacement, fitting them into some shrink sleeve and using a pair of contacts each end to go to the original terminals. Then will make up a new box to suit and put the stack in there. Now to go get a pack of those expensive D cells, or get a pack of C cells ( a lot cheaper) and make up some adaptors to make them fit in place of a D cell, or order some AA to D adaptors on fleabay.
Tested the AVO 15V battery, and it is dead, shuffled off this mortal coil, gone to meet it's maker Ever Ready. Replacement will be easy, going to strip the case off carefully, then remove the stack of waxed prismatic carbon cells inside there, and grab 5 Cr 2025 coin cells as a replacement, fitting them into some shrink sleeve and using a pair of contacts each end to go to the original terminals. Then will make up a new box to suit and put the stack in there. Now to go get a pack of those expensive D cells, or get a pack of C cells ( a lot cheaper) and make up some adaptors to make them fit in place of a D cell, or order some AA to D adaptors on fleabay.
Sean, in my AVO 8 Mk 5, I made a stack of LR44 button cells and added a bit of copper tube to match the 15V cell length and then held it all together with some heatshrink.
Over here we can get a card of 10 of LR44 for $2.
Did think of that, but have a lot of CR2025 cells around from old computers, and they are still good, so no cost for the modification aside from a little time.
I brought a box for filtering and balancing phantoms from the local junk/surplus shop ....
I also got a heap of very nice nickel soon to be raw copper binding posts and two mystery boxes of maybe oil filled R L and or C's. for my $15.
Nice scissors, but I don't think I could use them. The handles seem a bit small and I have big hands (size 13 wedding ring). That's a shame. I have a set of bandage scissors in my toolbox that I use, I've even cut pennies in half as a demonstration.
Nice scissors, but I don't think I could use them. The handles seem a bit small and I have big hands (size 13 wedding ring). That's a shame. I have a set of bandage scissors in my toolbox that I use, I've even cut pennies in half as a demonstration.
I have no idea how big your hands are, I don't know any thing about ring size, but I know you are definitely right! because my hands are so small, even smaller than most chinese women's hands.
The ring light I ordered to see if I could make it fit my microscope arrived today and as promised here are some photos of it mounted (I did get it to fit after all) and a couple of screen grabs 1st one with the built in light and the second with the ring light on. I'm a happy bunny.
Yeh, I know, clean the screen...
I brought a box for filtering and balancing phantoms from the local junk/surplus shop ....
I also got a heap of very nice nickel soon to be raw copper binding posts and two mystery boxes of maybe oil filled R L and or C's. for my $15.
Those terminals look like they are silver plated.
Could be wrong, could be the lighting.
The ring light I ordered to see if I could make it fit my microscope arrived today and as promised here are some photos of it mounted (I did get it to fit after all) and a couple of screen grabs 1st one with the built in light and the second with the ring light on. I'm a happy bunny.
...
Yeh, I know, clean the screen...
...
Looks like a big improvement - can't tell if it's brighter but reflections certainly less
The ring light I ordered to see if I could make it fit my microscope arrived today and as promised here are some photos of it mounted (I did get it to fit after all) and a couple of screen grabs 1st one with the built in light and the second with the ring light on. I'm a happy bunny.
...
Yeh, I know, clean the screen...
...
Looks like a big improvement - can't tell if it's brighter but reflections certainly less
Oh its definitely brighter, I had a dimmed a bit on the photo and as you say, less shadows is good. Theres still sufficient room to get in and solder as well with the ring fitted.
The ring light I ordered to see if I could make it fit my microscope arrived today and as promised here are some photos of it mounted (I did get it to fit after all) and a couple of screen grabs 1st one with the built in light and the second with the ring light on. I'm a happy bunny.
Yeah, that was a marked improvement. Much more even lighting.
My I-Extruder has arrived. It works fine with EFD 63/37 solder. I don't have SAC305 in EFD syringe, so I will have to test it out later.
I'm very interested in your findings; are they better than the air powered devices?
My toy budget is blown so all I could afford was these holes....
My toy budget is blown so all I could afford was these holes....
Useful for your PNP devices.
A USA power extension cable!
Actually a bit difficult to source in Aust. I am about to test a very old and crusty Yaesu FT101 transceiver (with 115V input), and I need a power cable with a USA socket - I can then join it to my AC lab power supply (Keysight AC6802A) - with variable voltage and current limits to do the 'smoke' test .
We need an emoticon with hair standing up!
A USA power extension cable!
Actually a bit difficult to source in Aust. I am about to test a very old and crusty Yaesu FT101 transceiver (with 115V input), and I need a power cable with a USA socket - I can then join it to my AC lab power supply (Keysight AC6802A) - with variable voltage and current limits to do the 'smoke' test .
We need an emoticon with hair standing up!
I would think you could order them from China, just like we do.
10x NE5532 opamps.
100m Isopropanol Alcohol
12mm Paint brush
Rolson magnifier visor
A basic Set of N Connector Gender Changer and N to BNC Adaptors.
Telegaertner J01024A0004 - N female to N female
Telegaertner J01008C0825 - N male to BNC female
Telegaertner J01008A0824 - N female to BNC male
Didn't chose those dirt cheap Chinese shiny chromous N Connectors off the *bay.
You get what you pay for and at last you're ending up buying the expensive but solid ones anyway.
Bought an update (2018 version) for my vrt (comparison table for semiconductors)
http://www.eca.de/en/
Kinda pricey....is it really worth 60 Euro to get a copy?
Still have no spare $$ so today I got two free bends at a local sheetmetal shop. Still not quiet done but I have 140mm on the flat to the centre of the camera shot
Forgotten which shot is which but nice amount of focus left on the ground and on the stand. (low Res)