Author Topic: Test Equipment Anonymous (TEA) group therapy thread  (Read 1442309 times)

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Offline beanflying

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31675 on: May 20, 2019, 12:22:39 pm »
Wow - someone just dropped $260 on a Fluke 8300A on the Bay of Evil. 

-Pat

Nixie need knows no $ limit ;)
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Online 0culus

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31676 on: May 20, 2019, 12:39:20 pm »
Found a jumper to put in, and now my 53310A has extended memory depth.  :-+
 
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Offline wch

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31677 on: May 20, 2019, 12:58:59 pm »
I am back home, having survived FDIM and Hamvention.   Before I left I packed two flat rate boxes full of parts and a couple of meters and left them with the hotel front desk. The postal carrier is supposed to pick them up on Monday and I will be very sad if that does not happen. 

I had only one bad experience, and of course it was at one of the fancy vendor booths, where I stopped by to inquire about a piece of kit I've been thinking about buying and left after two minutes of interacting with a arrogant sales guy.   :wtf:  No wonder I shop on line.

TEAS being what it is - and this will not surprise anyone on this thread - I found three boxes waiting for me when I got home: a 6113A, another TM plugin (the AM502), and the first batch of caps for power supplies rehab projects. After I finished unpacking, walking the dog, and eating dinner with SWMBO, I did a quick check of the PSU. A bit dinged up, dirty inside, and smelling of nicotine but overall in good condition. I powered it up and it generally seems to work. Switches have to be cleaned, it needs to be calibrated, etc but it'll do.  The AM502 was a parts-only deal but it looks like a win as the unit is pristine but for a broken knob and a bent feed through pot shaft. Will post photos when I get this stuff on the bench.

One lasting impression of Xenia: there are waaaaaaaay more Heathkit rigs in the world than there are people interested in owning Heathkit rigs.   :-DD

Ham radio, the TEA gateway drug: just say no to HF
 
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Online xrunner

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31678 on: May 20, 2019, 01:36:42 pm »
Quote
ham radio, the TEA gateway drug... just say no to HF

 :-DD
I am a Test Equipment Addict (TEA) - by virtue of this forum signature, I have now faced my addiction
 

Online mnementh

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31679 on: May 20, 2019, 01:58:32 pm »
   I know... his sig makes me grin every time I see it...  >:D Meanwhile, I'm also this guy (okay, not even flying on the same plane of reality as Neil, but still...), broadcasting NTSC or PAL video at 25-1500mW in the 5.8GHz region on an untethered suborbital aerial platform.  :scared:

mnem
I am so full of... something.
« Last Edit: May 20, 2019, 02:01:13 pm by mnementh »
 

Offline med6753

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31680 on: May 20, 2019, 04:00:59 pm »
Was watching a interesting doc called "Doodlebug Summer" which is about the V-1 and V-2 rocket attacks on southern England in 1944-45. What I didn't realize was the shear number of rockets launched. Something like 6000 V-1's and 1000 V-2's.  :scared: I was surprised at that number. You guys living around London must have heard some stories from your older relatives concerning these attacks. At least the V-1 gave some warning. Loud droning then stopped. The V-2 gave no warning and initially your gov called it "gas explosions"  :palm:
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Offline beanflying

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31681 on: May 20, 2019, 04:35:46 pm »
Nothing to do with TEA and more to do with potential GAS of a different sort. A Years+ worth of Pickled Onions added to the shack/house pantry, Honey and Pepper, Chilli Spiced and Bitey and Curried. Down to the last bottle of last years stash.
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Online tggzzz

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31682 on: May 20, 2019, 04:47:01 pm »
Was watching a interesting doc called "Doodlebug Summer" which is about the V-1 and V-2 rocket attacks on southern England in 1944-45. What I didn't realize was the shear number of rockets launched. Something like 6000 V-1's and 1000 V-2's.  :scared: I was surprised at that number. You guys living around London must have heard some stories from your older relatives concerning these attacks. At least the V-1 gave some warning. Loud droning then stopped. The V-2 gave no warning and initially your gov called it "gas explosions"  :palm:

There was an interesting use of intelligence services w.r.t. the V1s.

The UK had captured and turned all German agents parachuted into the UK. Initially the V1s landed on London as designed, but the turned agents fed back reports that the V1s landed beyond London. The Germans reduced their set range, so most fell into the countryside short of London.
There are lies, damned lies, statistics - and ADC/DAC specs.
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Online VK5RC

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31683 on: May 20, 2019, 04:56:00 pm »
Quote
ham radio, the TEA gateway drug... just say no to HF

 :-DD

Ooooooooh. Microwave ham gets s**t-crazy-expensive TEA!  $30 parts/gunn diode with a $50,000 SpecAn to know what you are doing (or think you are! Hehe)
The only saving grace is that the parts 'generally' get cheaper (and smaller)

The 'craziest' boffin ham in that area in vk land is rex moncur, vk7mo, he keeps breaking world microwave records with a bmw x3 full to the gunwales of 10GHz stuff, a few years ago I went to the Gippstech conference (vk ham - vhf-microwave) and he had just pretty well gone from east to west coast of Australia (across the bight) on 10GHz! He was one of the guys grizzling about the new Icom 9700 not being very stable - well for him it isn't (currently I hope) He was involved with a mod for the icom 910, along with others including vk3xdk - to allow the 910 to be 10MHz ref locked.

Lovely fluke-nixie pron!
Whoah! Watch where that landed we might need it later.
 
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Offline med6753

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31684 on: May 20, 2019, 05:22:25 pm »
Was watching a interesting doc called "Doodlebug Summer" which is about the V-1 and V-2 rocket attacks on southern England in 1944-45. What I didn't realize was the shear number of rockets launched. Something like 6000 V-1's and 1000 V-2's.  :scared: I was surprised at that number. You guys living around London must have heard some stories from your older relatives concerning these attacks. At least the V-1 gave some warning. Loud droning then stopped. The V-2 gave no warning and initially your gov called it "gas explosions"  :palm:

There was an interesting use of intelligence services w.r.t. the V1s.

The UK had captured and turned all German agents parachuted into the UK. Initially the V1s landed on London as designed, but the turned agents fed back reports that the V1s landed beyond London. The Germans reduced their set range, so most fell into the countryside short of London.

That must explain why the communities East and South of London took the brunt of the attacks and the most damage.
An old gray beard with an attitude.
 

Online bd139

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31685 on: May 20, 2019, 05:39:58 pm »
Also why Medway is a shit hole now  :-DD
 

Online Mr. Scram

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31686 on: May 20, 2019, 05:43:33 pm »
There was an interesting use of intelligence services w.r.t. the V1s.

The UK had captured and turned all German agents parachuted into the UK. Initially the V1s landed on London as designed, but the turned agents fed back reports that the V1s landed beyond London. The Germans reduced their set range, so most fell into the countryside short of London.
I heard a similar story, but with the information being fed through the local newspapers.
 

Online tggzzz

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31687 on: May 20, 2019, 05:48:27 pm »
Was watching a interesting doc called "Doodlebug Summer" which is about the V-1 and V-2 rocket attacks on southern England in 1944-45. What I didn't realize was the shear number of rockets launched. Something like 6000 V-1's and 1000 V-2's.  :scared: I was surprised at that number. You guys living around London must have heard some stories from your older relatives concerning these attacks. At least the V-1 gave some warning. Loud droning then stopped. The V-2 gave no warning and initially your gov called it "gas explosions"  :palm:

There was an interesting use of intelligence services w.r.t. the V1s.

The UK had captured and turned all German agents parachuted into the UK. Initially the V1s landed on London as designed, but the turned agents fed back reports that the V1s landed beyond London. The Germans reduced their set range, so most fell into the countryside short of London.

That must explain why the communities East and South of London took the brunt of the attacks and the most damage.

Precisely.

Background information, edited from wackypedia: RV Jones' autobiography, Most Secret War: British Scientific Intelligence 1939–1945, formed the basis, pre-publication, of the BBC One TV documentary series "The Secret War". The historian A. J. P. Taylor described Most Secret War as "the most fascinating book on the Second World War that I have ever read" and, more generally, it has acquired almost classic status.

That book is indeed, even now, well worth reading and re-reading.
There are lies, damned lies, statistics - and ADC/DAC specs.
Glider pilot's aphorism: "there is no substitute for span". Retort: "There is a substitute: skill+imagination. But you can buy span".
Having fun doing more, with less
 

Offline tautech

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31688 on: May 20, 2019, 05:53:00 pm »
And on the matter of the V1's, an interesting recent thread that looks at the proximity shells used to take down many V1's:
https://www.eevblog.com/forum/chat/ww2-electronics-aa-delayed-shells/
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Offline beanflying

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31689 on: May 20, 2019, 08:12:32 pm »
Straw poll. New sides for my 419A do I go smoked Gray or Clear (Cereal Packet cardboard is not a good long term option) and do I be evil and back light the Logo with LED's somehow? >:D

None of the innards of the 419A are really visible due to the inner aluminium shielding so clear is a bit pointless?
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Offline med6753

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31690 on: May 20, 2019, 08:24:04 pm »
Was watching a interesting doc called "Doodlebug Summer" which is about the V-1 and V-2 rocket attacks on southern England in 1944-45. What I didn't realize was the shear number of rockets launched. Something like 6000 V-1's and 1000 V-2's.  :scared: I was surprised at that number. You guys living around London must have heard some stories from your older relatives concerning these attacks. At least the V-1 gave some warning. Loud droning then stopped. The V-2 gave no warning and initially your gov called it "gas explosions"  :palm:

There was an interesting use of intelligence services w.r.t. the V1s.

The UK had captured and turned all German agents parachuted into the UK. Initially the V1s landed on London as designed, but the turned agents fed back reports that the V1s landed beyond London. The Germans reduced their set range, so most fell into the countryside short of London.

That must explain why the communities East and South of London took the brunt of the attacks and the most damage.

Precisely.

Background information, edited from wackypedia: RV Jones' autobiography, Most Secret War: British Scientific Intelligence 1939–1945, formed the basis, pre-publication, of the BBC One TV documentary series "The Secret War". The historian A. J. P. Taylor described Most Secret War as "the most fascinating book on the Second World War that I have ever read" and, more generally, it has acquired almost classic status.

That book is indeed, even now, well worth reading and re-reading.

So no family stories about those attacks or is it something that just isn't talked about any more?  :-//
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Offline nixiefreqq

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31691 on: May 20, 2019, 09:24:40 pm »
Wow - someone just dropped $260 on a Fluke 8300A on the Bay of Evil. 

-Pat

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Online mnementh

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31692 on: May 20, 2019, 10:25:41 pm »
   Straw poll. New sides for my 419A do I go smoked Gray or Clear (Cereal Packet cardboard is not a good long term option) and do I be evil and back light the Logo with LED's somehow? >:D

None of the innards of the 419A are really visible due to the inner aluminium shielding so clear is a bit pointless?

      I've always had a soft spot for Silver Twill G10 laminate, myself.  >:D

mnem
You can kill me later. After my wife sees that monstrosity of a monitor...   ;)
« Last Edit: May 20, 2019, 10:29:52 pm by mnementh »
 

Offline beanflying

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31693 on: May 20, 2019, 10:56:34 pm »
Would need a beast of a Laser for G10 and the bigger CNC Router isn't back in running order so sticking with Acrylic at this stage. I could always make it a Woody I suppose I have some decent ply ;)
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Online mnementh

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31694 on: May 20, 2019, 11:02:42 pm »
Countertop Formica? A world of possibilities there, and appropriate scraps should be pretty easy to come by.

mnem
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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31695 on: May 20, 2019, 11:04:46 pm »
   Straw poll. New sides for my 419A do I go smoked Gray or Clear (Cereal Packet cardboard is not a good long term option) and do I be evil and back light the Logo with LED's somehow? >:D

None of the innards of the 419A are really visible due to the inner aluminium shielding so clear is a bit pointless?

      I've always had a soft spot for Silver Twill G10 laminate, myself.  >:D

mnem
You can kill me later. After my wife sees that monstrosity of a monitor...   ;)
Can't kill you later because SWMBO will already have done the deed

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Offline nixiefreqq

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31696 on: May 20, 2019, 11:15:35 pm »
oculus inspired me to finally replace my 35 year old TI-30 SLR calculator.

watched some tutorials and decided that the TI36x pro was kinda clumsy at converting between polar and rectangular coordinates.

but its easy on this gadget.  AND it was 18 bucks at mega-lo-mart!  and to get the answer you click THE = KEY!!!

ps  finally found something that a damn fox hound is good for.  you can prop shit up against them.

 

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Online bd139

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31697 on: May 20, 2019, 11:55:34 pm »
Interestingly the TI, Casio and arse end HP calculators are all made by Kinpo and have roughly the same software with some adjustments now. Depressing but the Chinese go their fingers into it.
 

Offline med6753

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31698 on: May 21, 2019, 12:43:47 am »
First look inside the Heathkit OL-1 scope. I removed all the tubes and the CRT. The rear support bracket for the CRT is missing. And it definitely is not the original CRT. Going the vacuum the interior and inventory all the tubular caps plus the B+ can.



But before ordering any parts need to determine the condition of the power transformer. That's the only part that's unobtanium and if it's no good the entire restore is senseless. Luckily quick DC continuity check shows it's OK. Those two .1uf/1200V HV caps are physically sticky to touch.



Here's the vacuum tube complement.

1V2 HV Rectifier
6X4 B+ Rectifier
12AX7 Twin Triode preamp
4 – 12AU7 Twin Triodes for the Vertical and Horizontal amps
3EP1 CRT which was real tight in the front bezel. That green grid is not original.

All the tubes are readily available on Ebay.



Front panel. Going to completely strip it down and clean it. That's not rust. It's dirt. The case is going to be cleaned and then spray painted. Undecided on color right now. So, that's it for now. Will provide updates as progress is made.



An old gray beard with an attitude.
 
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Offline bitseeker

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Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #31699 on: May 21, 2019, 12:47:25 am »
Wow - someone just dropped $260 on a Fluke 8300A on the Bay of Evil. 

LOL! Yeah, I was watching that little battle, but didn't catch the ending until just now. :box:
I TEA.
 


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