Test Equipment Anonymous (TEA) group therapy thread

[bd139]

@Zucca Ender FTW!

Ok looks like I didn't blow up the NanoVNA. The SMA connector I was using had a Chinesium fracture. I ran the cal cycle on the NanoVNA and it was fine. Phew!

Well the RF amp is well and truly buggered. It's only a small signal front end amplifier but the damn thing doesn't work. It worked perfectly in LTspice and on the NanoVNA for about 2 mintues. One min it's pulling 20mA, next minute 8mA and the thing is toast. I have replaced every part and it's still damn pulling 8mA. I built the entire amp again with new parts and it's pulling 8mA fine but only 3dB of gain not 15dB. Can't figure it out. I tried tuning it with a receiver to see if it's oscillating - nothing. Probing it with scope / finger - nothing. 

It actually forward biases an LED successfully by 0.8V by the looks which is a big WTF. Unless it's oscillating at 400MHz+ or something which a PN2222A shouldn't be able to do.

Are you sure it's a PN2222A?  Just sayin'

* worsthorse wanders out of range.

Yeah that batch was legit from RS. I woke up this morning and have come to the conclusion the design sucks so I’m going to switch it out for a W7ZOI design instead.

[Martin.M]

GBP goes ready for my Solartron DMM 
waiting to the next -48%
I need a 6 1/2 or better 7 1/2 with panaplex displays 
(just for playing with..)

[Zucca]

Next step:

https://www.creality3dofficial.com/products/ender-5-pro-3d-printer



Where I should buy my new Ender 5 pro, aliexpress?

I will also buy a glass bed, moreover I have PLA but maybe I throw 2 more in the bin, anything else I should add?

https://www.aliexpress.com/item/4000451834825.html

1:Ender-5 3D Printer and Glass + 2KG PLA Filament（Random Color）

It looks like the 2019 upgrade,

Officers I am clear to fire, let me know if I can pull the trigger.

[Mortymore]

Edit, here it is. The batteries died years ago and I suppose I could get in there and change them.

I replaced the batteries on my PULSE CD case, a few weeks ago. The battery support is reversed,  at least on my CD case and since I had forgot that issue, there was some head scratch before I realyse that once again.

[Brumby]

Officers I am clear to fire, let me know if I can pull the trigger.

You have to ask?

DO IT!


(unless someone has a better deal they know of)

[beanflying]

Next step:

https://www.creality3dofficial.com/products/ender-5-pro-3d-printer



Where I should buy my new Ender 5 pro, aliexpress?

I will also buy a glass bed, moreover I have PLA but maybe I throw 2 more in the bin, anything else I should add?

https://www.aliexpress.com/item/4000451834825.html

1:Ender-5 3D Printer and Glass + 2KG PLA Filament（Random Color）

It looks like the 2019 upgrade,

Officers I am clear to fire, let me know if I can pull the trigger.

In the first 6 months to a year another couple of 0.4 nozzles and another bit of Capricom tube. The rest is unlikely. Check locally you should find PLA in the colours you want for less $ too. Glass Bed 

[Martin.M]

I have a bunch of resistors 10k 5W.
Connected to 230V AC line that is a pretty good heater of 5W.
So 6 of them between 2 Aluminium sheets to become a 30W Heater for my chili seed boxes.
The little corns need 28°C. I will build 3 heaters now.
one month later the little chilis can go out in the room for normal temperature, when they have 4 libs.

Test gear: John Fluke, 2190A with K Type sensor. 

I have some chili from india, spicy,
some from thailand, hot,
Jalapeno from mexico, spicy,
and the Trinidad Moruga Scorpion Chili, skull, 2 mill. scovilles 
baby water melones, some cocktailtomatoes...

all to seed now. The climatic change provides some hot things in the garden

[xrunner]

Officers I am clear to fire, let me know if I can pull the trigger.

You have to ask?

DO IT!


(unless someone has a better deal they know of)

Like askiing a group of drug addicts if they want to try a crack pipe. 

[bd139]

Yep 

[Zucca]

It was more: is this the best crack outhere?



BTW, it took one of your words to convince me.

My brain is remote controlled by one of your TEA systems... bastards!

[BU508A]

Officers I am clear to fire, let me know if I can pull the trigger.

You have to ask?

DO IT!


(unless someone has a better deal they know of)

Like askiing a group of drug addicts if they want to try a crack pipe. 

(Attachment Link)

You mean: Like asking a bunch of TEA members, if they are interested in buying this palette full of test gear for USD 50.-   

Edit:
Example:



Description:
4 Oszilloskope
    (1 Stück Philips/Fluke PM3082, Bandbreite bis 100 MHz;
     1 Stück Tektronix TDS420, Bandbreite bis 150 MHz;
     1 Stück HP 54601B, Bandbreite bis 100 MHz;
     1 Stück LeCroy Waverunner LT344, Bandbreite 500 MHz);
2 Millivoltmeter R&S URV 4, 10 kHz bis 2 GHz;
1 Datenleitungsmessgerät Wandel & Goltermann DLM-4,
    Frequenzbereich 200 Hz bis 4 kHz;
2 Zweikanalverstärkereinschübe Tektronix 7A18;
3 Oszilloskope Philips PM 3206;
3 Anzeige- und Bediengeräte Litef DE 64, 30 V, mit Tastatur u. a.;
zum Teil unvollständig bzw. defekt.

Link:
https://www.vebeg.de/web/de/verkauf/suchen.htm?DO_SUCHE=1&SUCH_MATGRUPPE=1170&SUCH_STARTREC=0&SUCH_NOPAGINATION=1&SHOW_AUS=2008170&SHOW_LOS=58

[AVGresponding]

You mean: Like asking a bunch of TEA members, if they are interested in buying this palette full of test gear for USD 50.-   

I'd be saved by the shipping costs, in that circumstance...

I see so much nice gear from Fluke and Keithley etc at nice prices, then I look at the shipping costs from the US and I go away and cry inside a little...

[SilverSolder]

You mean: Like asking a bunch of TEA members, if they are interested in buying this palette full of test gear for USD 50.-   

I'd be saved by the shipping costs, in that circumstance...

I see so much nice gear from Fluke and Keithley etc at nice prices, then I look at the shipping costs from the US and I go away and cry inside a little...

You just take a van across the Channel to pick it up!  (assuming this is permissible in the new free Britain of course)

[Zucca]

Link:
https://www.vebeg.de/web/de/verkauf/suchen.htm?DO_SUCHE=1&SUCH_MATGRUPPE=1170&SUCH_STARTREC=0&SUCH_NOPAGINATION=1&SHOW_AUS=2008170&SHOW_LOS=58

https://www.vebeg.de/web/de/verkauf/suchen.htm?DO_SUCHE=1&SUCH_MATGRUPPE=1120&SHOW_AUS=2006270&SHOW_LOS=8

I always wanted an off grid Lab 

[WastelandTek]

Yeah that batch was legit from RS. I woke up this morning and have come to the conclusion the design sucks so I’m going to switch it out for a W7ZOI design instead.

Wes is one brilliant MFer, I have a WA7MLH implementation of his spectrum analyzer here that is one of my most prized instruments.

[med6753]

Look at this. Was in Michigan. You don't how bad I wanted to make a road trip but realized....where would I put it all?? 

https://www.facebook.com/marketplace/item/863047330818573/ 

[Brumby]

Do what I do ... MAKE it fit.

(Which reminds me ... I gotta do something with the garage.    )

[med6753]

Do what I do ... MAKE it fit.

(Which reminds me ... I gotta do something with the garage.    )

That's where most of it would wind up, out in a damp garage. 

[bd139]

Yeah that batch was legit from RS. I woke up this morning and have come to the conclusion the design sucks so I’m going to switch it out for a W7ZOI design instead.

Wes is one brilliant MFer, I have a WA7MLH implementation of his spectrum analyzer here that is one of my most prized instruments.

Spot on. I've been collecting parts to build that for a while. I have all the minicircuits bits 

[Brumby]

Do what I do ... MAKE it fit.

(Which reminds me ... I gotta do something with the garage.    )

That's where most of it would wind up, out in a damp garage. 

My garage isn't too damp - but it would be other things that get dumped out there.  Test gear stays in the house - maybe stashed somewhere generally inconvenient - but in the house.

[WastelandTek]

Yeah that batch was legit from RS. I woke up this morning and have come to the conclusion the design sucks so I’m going to switch it out for a W7ZOI design instead.

Wes is one brilliant MFer, I have a WA7MLH implementation of his spectrum analyzer here that is one of my most prized instruments.

Spot on. I've been collecting parts to build that for a while. I have all the minicircuits bits 

Doooo it! I was really lucky, Jeff worked at Tri-Quint at the time and we would sneak in after hours and use state of the art gear to tune the xtal filters and such.  Good times.

[WastelandTek]

Do what I do ... MAKE it fit.

(Which reminds me ... I gotta do something with the garage.    )

That's where most of it would wind up, out in a damp garage. 

My garage isn't too damp - but it would be other things that get dumped out there.  Test gear stays in the house - maybe stashed somewhere generally inconvenient - but in the house.

The girl hasn't grumbled too loudly, but the Tek frames awaiting work have kind of invaded one side of the pantry...

[mnementh]

Next step:

https://www.creality3dofficial.com/products/ender-5-pro-3d-printer      Where I should buy my new Ender 5 pro, aliexpress?

I will also buy a glass bed, moreover I have PLA but maybe I throw 2 more in the bin, anything else I should add?

https://www.aliexpress.com/item/4000451834825.html

1:Ender-5 3D Printer and Glass + 2KG PLA Filament（Random Color）

It looks like the 2019 upgrade,   Officers I am clear to fire, let me know if I can pull the trigger.   

In the first 6 months to a year another couple of 0.4 nozzles and another bit of Capricom tube. The rest is unlikely. Check locally you should find PLA in the colours you want for less $ too. Glass Bed 

Ditto on the 




From the above assembly vid, looks like it'll be a bit more involved than the Tornado/CR10; this may seem a bit daunting for a first build, but if you watch the vid several times BEFORE you start, you should be good to go. Still DEFINITELY a cakewalk compared to assembling a Kossel and getting it aligned/leveled.     Your reward for the extra work will be a much more stable, precise platform than the CR10/Tornado, which should be good to much closer tolerances and inherently less prone to runout.

Congratulations! 

mnem

[SilverSolder]

Do what I do ... MAKE it fit.

(Which reminds me ... I gotta do something with the garage.    )

That's where most of it would wind up, out in a damp garage. 

My garage isn't too damp - but it would be other things that get dumped out there.  Test gear stays in the house - maybe stashed somewhere generally inconvenient - but in the house.

The girl hasn't grumbled too loudly, but the Tek frames awaiting work have kind of invaded one side of the pantry...

Hope you appreciate her! 

[tggzzz]

You mean: Like asking a bunch of TEA members, if they are interested in buying this palette full of test gear for USD 50.-   

I'd be saved by the shipping costs, in that circumstance...

I see so much nice gear from Fluke and Keithley etc at nice prices, then I look at the shipping costs from the US and I go away and cry inside a little...

You just take a van across the Channel to pick it up!  (assuming this is permissible in the new free Britain of course)

In 2021 there will be extra car insurance, customs duty, and a lot more red tape paperwork. Didn't see that on the side of a bus.