Author Topic: Test Equipment Anonymous (TEA) group therapy thread  (Read 1188007 times)

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Offline bd139

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #25250 on: February 14, 2019, 09:16:58 pm »
Same here, makes me wonder if there ever was a little book in the first place. Strikes me as a rather dangerous thing to do, if SWMBO ever got her hands on it, we'll never be able to sleep at night for fear of never ever waking up again :-DD

The black book is not a thing to keep for sure but that doesn't protect you from danger. Had a couple of near misses over the years.

Anyway back on some TEA stuff for a change... managed to get my antenna back up this morning as the council have cut all the trees down. Used the MFJ-259 to tune it and bam, it's 1:1.2 SWR flat across the important bits of 40, 30 and 20m which is amazingly good. Very happy with that toy.
 

Offline Specmaster

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #25251 on: February 14, 2019, 10:26:12 pm »
Careful or you'll slide down that slippery slope like my gamer neighbor. And that's a giant rabbit hole with no end. You'll stay up all night conversing loudly with your gamer buddies. Twinkies will be your meal of choice. Don't work. Don't shower. Waddle on the scale at about 400 pounds. Belly so huge you don't know if the family jewels still exist. The model of our new society.  |O

Yeah definitely. Been there albeit not that bad. Got to top ten in UT99 ngworldstats for a bit which was way too deep in.


Women have always been my downfall.  :-DD
Nah, no fear of that, I dont play online gaming with others, so no need for headsets with microphones to chat on either, just a bit of solo Command and Conquer, or snooker (or used to be snooker till Windoze 10 killed it), a bit of Simpsons Tapped Out on tablets when I've got no TEA activity happening or as a break to save my brain from getting fried  :-DD
Who let Murphy in?
 

Offline VK5RC

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #25252 on: February 14, 2019, 10:36:48 pm »
@bd139 have you seen the Eu1ky single port vna?
It has been extremely popular here in vk5 land. It uses a demo board with touch screen and another pcb with a couple of si5351etc. My radio club even did a batch of the pcbs and somewhere I have the element 14 part list if anyone is interested. One of the vk5 hams, vk5sfa, he just won the ARRL home-brew antenna competition, (he is a retired broadcast engineer) raves about it. Link https://bitbucket.org/kuchura/eu1ky_aa_v3/wiki/Home
Below is just one of the pages it can display. Can do swr graphs, including r+ij and a lot of other good stuff - all for about 150 Aussie pesos.
« Last Edit: February 14, 2019, 10:40:06 pm by VK5RC »
Whoah! Watch where that landed we might need it later.
 

Offline bd139

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #25253 on: February 14, 2019, 10:41:45 pm »
Yes seen those. I decided it was too expensive and too much of an arse ache to put together. An MFJ-259B landed at the right price so I snapped that up :)

I actually built a sweeperino with return loss bridge a while ago to use for this purpose as well. That worked pretty well and got my last antenna tuned nicely.



Incidentally I ran the RLB through the MFJ-259B when it turned up and that was flat to 63MHz which was quite a surprise.

I am looking at heading in the direction of simpler solutions generally so the next attempt will be a noise bridge I think.
 
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Offline VK5RC

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #25254 on: February 15, 2019, 12:12:32 am »
No worries, rather bizarrely I still enjoy building 'kits' !
For the older smd-terrified guys in my radio club I built 3 of them.
Rob
Whoah! Watch where that landed we might need it later.
 

Offline bd139

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #25255 on: February 15, 2019, 12:15:46 am »
Yeah I like a good kit too. Currently humming and hawing over an Elecraft K2.

Would also give me an excuse to use all this test gear then!  :-DD
 

Online mnementh

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Re: HP 5347A and Tektronix 2465
« Reply #25256 on: February 15, 2019, 01:33:06 am »
...I might pull the 7404 it feeds into in the desperate hope there is a fault with the 7404 that's holding the output low.  If it's the MK500P, then it looks like they are around, but not in great numbers.  If you want a laugh - have a look at the one offering on eBay: https://www.ebay.com/itm/143112726483

Well that's totally pants. Like he's trying to get the price of the whole instrument from one part; and no way of knowing if that would fix anything. There's a lot of "tested, working" parts on fleaBagy that are neither.  :P

Good job you have got further in a day than I 'felt' the need to in 6 months  :-DD

I have a few 7404 circa 1978 vintage IC's I could have included  ;D
I think the ones I have might be a better match ... circa 1975, I think.   ;D
   Be a REAL MAN; build it from discretes! It's  ONLY 6 of these!!! :-DD

   That should be the full list, unless it was operated by a grad student sometime in its life.  :-DD

mnem
*Currently doing a teardown on a $40 1000W computer PSU*

Hoping its that easy, as I travel alot, no time to tinker with yet.  :'(

I feel you. Have several "must-do" projects on at the same time right now; not a lot of time for the "fun". Even the PC modding thing... which is usually fun for me... is turning into a chore due to time pressure and the fact I need stuff off that PC.    :palm:

Oh, and wife is away at her annual TMEA convention (Music Teacher's Seminary thing); so I'm Mister Mom on top of it all.  :o

mnem
 :scared:
« Last Edit: February 15, 2019, 01:35:03 am by mnementh »
 

Online mnementh

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #25257 on: February 15, 2019, 01:45:05 am »
Think I am becoming a more of a sheetmetal worker. Bottom end of my 10 \$\Omega\$ decade 25W Vishay's the other decade in the box will have paralleled 3W 200 \$\Omega\$ for 6W for the 100  \$\Omega\$ decade. Waiting on a 3 layer rotary switch instead of the two shown to share the current a bit better on the low range.

It is now Little Creatures O'Clock and 25C in the shack :popcorn:

Sheet metal? WHERE?  :-//

That's all quite delicious cast and extruded aluminum, baybee!!!  :-+ Could only be better if it were CNC milled!  8)

Think I’m going down the same route as you  :-DD
The stories I could tell. Wrong forum.  >:D :-DD

I too have fallen victim to the power of a well-swung tail. Repeatedly.  :-DD

mnem
I do love me "an inconvenient female". They're the only ones worth the effort.  >:D
 

Online mnementh

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #25258 on: February 15, 2019, 01:58:30 am »
My "Little Black Book" is all tucked away in the brain cells, never to be put to paper. When I die the evidence goes with me.  :-DD
Same here, makes me wonder if there ever was a little book in the first place. Strikes me as a rather dangerous thing to do, if SWMBO ever got her hands on it, we'll never be able to sleep at night for fear of never ever waking up again :-DD

Not as bad as looking for the number of one of your old doobie hangouts and finding where she has gone and "graded" every entry in the damned thing. Some time. In the several months since you last looked in it.  :o

mnem
Define "crazy"?!?
 

Online med6753

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #25259 on: February 15, 2019, 04:51:31 am »
Spent some time today working on the 465B Channel 2 attenuator deck issue and I found the problem. And unfortunately it's fatal. Some gorilla has been in here before me and they stripped several of stand off screw holes causing inconsistent contact across the entire assembly. And the front plate is bent so the BNC must have taken a shot at one time and was replaced. So this whole mess has got to go. I'll keep and eye out for a cheap junker but this really isn't a priority and it will function just fine as a single trace scope.

This isn't the first time I've had to clean up after this damn gorilla and I'm sure it won't be the last.    :palm:
An old gray beard with an attitude.
 

Offline Specmaster

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #25260 on: February 15, 2019, 05:32:49 am »
The world is sadly full of Gorillas, maybe a cull is required  :-DD
Who let Murphy in?
 

Online med6753

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #25261 on: February 15, 2019, 05:38:43 am »
My "Little Black Book" is all tucked away in the brain cells, never to be put to paper. When I die the evidence goes with me.  :-DD
Same here, makes me wonder if there ever was a little book in the first place. Strikes me as a rather dangerous thing to do, if SWMBO ever got her hands on it, we'll never be able to sleep at night for fear of never ever waking up again :-DD

Not as bad as looking for the number of one of your old doobie hangouts and finding where she has gone and "graded" every entry in the damned thing. Some time. In the several months since you last looked in it.  :o

mnem
Define "crazy"?!?

So she was keeping score in HER book?  Where did you rate?  :-DD :-DD :-DD
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Online mnementh

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #25262 on: February 15, 2019, 06:10:55 am »
No. She had MY little black book long enough to identify everyone in it, and graded them all. In pink pen. With notes.  :palm:

I still don't know if she called them and compared notes, or if she just knew most of the same people as I did and guessed on the rest. Don't wanna know either. I just put it back in the back of my dresser and went on about my life as if I'd never looked in it. We lasted almost a year after that; and no blood was spilled. Well, none that wasn't voluntary.  >:D

mnem
Life is complicated.
 

Online mnementh

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #25263 on: February 15, 2019, 06:13:45 am »
The world is sadly full of Gorillas, maybe a cull is required  :-DD

Hey... some of us are just clumsy dwagons.  :o

mnem
Have mercy...
 

Online tautech

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #25264 on: February 15, 2019, 06:24:39 am »
Spent some time today working on the 465B Channel 2 attenuator deck issue and I found the problem. And unfortunately it's fatal. Some gorilla has been in here before me and they stripped several of stand off screw holes causing inconsistent contact across the entire assembly. And the front plate is bent so the BNC must have taken a shot at one time and was replaced. So this whole mess has got to go. I'll keep and eye out for a cheap junker but this really isn't a priority and it will function just fine as a single trace scope.

This isn't the first time I've had to clean up after this damn gorilla and I'm sure it won't be the last.    :palm:
And you won't consider re-tapping them just oversize and fitting a different screw ?  :-//
Avid Rabid Hobbyist
 

Offline Specmaster

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #25265 on: February 15, 2019, 06:54:22 am »
The world is sadly full of Gorillas, maybe a cull is required  :-DD

Hey... some of us are just clumsy dwagons.  :o

mnem
Have mercy...
Certainly clumsy with a certain black book, Just don't know where you got the energy to try and keep more than 1 doobie happy  >:D, I found 1 was enough, coping with moods, headaches etc  :-DD
Who let Murphy in?
 

Offline bd139

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #25266 on: February 15, 2019, 06:55:52 am »
That’s why they invented beer. To take the pain away.
 
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Offline Specmaster

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #25267 on: February 15, 2019, 06:55:57 am »
Spent some time today working on the 465B Channel 2 attenuator deck issue and I found the problem. And unfortunately it's fatal. Some gorilla has been in here before me and they stripped several of stand off screw holes causing inconsistent contact across the entire assembly. And the front plate is bent so the BNC must have taken a shot at one time and was replaced. So this whole mess has got to go. I'll keep and eye out for a cheap junker but this really isn't a priority and it will function just fine as a single trace scope.

This isn't the first time I've had to clean up after this damn gorilla and I'm sure it won't be the last.    :palm:
And you won't consider re-tapping them just oversize and fitting a different screw ?  :-//
Maybe a another screw with a locking nut on the other side?
Who let Murphy in?
 

Online Neomys Sapiens

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #25268 on: February 15, 2019, 07:00:56 am »

Especially considering what you lady does, I imagine your ears are also open.


She's NYPD and I'm at minimum 75 miles north of NYC so unfortunately too far away to pick up. And I'm just running the whip antenna anyway. But it's good enough to pick up all of my county. Especially since one of the repeaters is only 2 miles away.  ;D
Come on, BOS/PSB-Dx is a thing! Get a nice LogPer or a directional array! I was having Frankfurt and Karlsruhe regular except in inclement weather - with a discone!

I'm sure the landlord will get a little pissy if I start erecting antennas on his roof.  :o
Mine was fine with it. Although I have them mounted under the roof for practical reasons.
But when I thought that I had to run the cables down by the bach, he told me that he wouldn't care if I did it on front. Ok, I'll have to assume responsibility for the drilled window frame, but I intend to stay here anyway for longer
 

Online med6753

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #25269 on: February 15, 2019, 07:02:37 am »
Spent some time today working on the 465B Channel 2 attenuator deck issue and I found the problem. And unfortunately it's fatal. Some gorilla has been in here before me and they stripped several of stand off screw holes causing inconsistent contact across the entire assembly. And the front plate is bent so the BNC must have taken a shot at one time and was replaced. So this whole mess has got to go. I'll keep and eye out for a cheap junker but this really isn't a priority and it will function just fine as a single trace scope.

This isn't the first time I've had to clean up after this damn gorilla and I'm sure it won't be the last.    :palm:
And you won't consider re-tapping them just oversize and fitting a different screw ?  :-//

The stripped holes are in plastic and there's not much material. And the screws themselves are special with built in stand-offs and threaded at top for the top shield. I suppose with a lot of work it's possible to fix it but I don't think it's worth it. If I really needed it, yes, I would probably attempt it. It would be easier to replace it. And also the front plate is bent. That is a relatively easy fix.   
An old gray beard with an attitude.
 

Online med6753

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #25270 on: February 15, 2019, 07:04:14 am »
Spent some time today working on the 465B Channel 2 attenuator deck issue and I found the problem. And unfortunately it's fatal. Some gorilla has been in here before me and they stripped several of stand off screw holes causing inconsistent contact across the entire assembly. And the front plate is bent so the BNC must have taken a shot at one time and was replaced. So this whole mess has got to go. I'll keep and eye out for a cheap junker but this really isn't a priority and it will function just fine as a single trace scope.

This isn't the first time I've had to clean up after this damn gorilla and I'm sure it won't be the last.    :palm:
And you won't consider re-tapping them just oversize and fitting a different screw ?  :-//
Maybe a another screw with a locking nut on the other side?

Blind holes in plastic.
An old gray beard with an attitude.
 

Online nfmax

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #25271 on: February 15, 2019, 07:04:58 am »
I still don't know if she called them and compared notes, or if she just knew most of the same people as I did and guessed on the rest. Don't wanna know either. I just put it back in the back of my dresser and went on about my life as if I'd never looked in it. We lasted almost a year after that; and no blood was spilled. Well, none that wasn't voluntary.  >:D

mnem
Life is complicated.

Relationships are complex:they have a real part, and an imaginary part...
 
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Online tautech

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #25272 on: February 15, 2019, 07:08:02 am »
Spent some time today working on the 465B Channel 2 attenuator deck issue and I found the problem. And unfortunately it's fatal. Some gorilla has been in here before me and they stripped several of stand off screw holes causing inconsistent contact across the entire assembly. And the front plate is bent so the BNC must have taken a shot at one time and was replaced. So this whole mess has got to go. I'll keep and eye out for a cheap junker but this really isn't a priority and it will function just fine as a single trace scope.

This isn't the first time I've had to clean up after this damn gorilla and I'm sure it won't be the last.    :palm:
And you won't consider re-tapping them just oversize and fitting a different screw ?  :-//
Maybe a another screw with a locking nut on the other side?

Blind holes in plastic.
Self tappers.
Avid Rabid Hobbyist
 

Offline Cubdriver

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #25273 on: February 15, 2019, 07:14:10 am »
Blind holes in plastic.

Fill with epoxy, redrill and retap?

-Pat

If it jams, force it.  If it breaks, you needed a new one anyway...
 

Online tautech

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #25274 on: February 15, 2019, 07:32:43 am »
Blind holes in plastic.

Fill with epoxy, redrill and retap?

-Pat
Depending on the plastic results can be disappointing without some type of primer to get a good adhere.
Back when 465's were built they didn't have the good self tappers we do now.

Med, some pics and screw diameter and length measurements please.
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