Author Topic: Test Equipment Anonymous (TEA) group therapy thread  (Read 14552172 times)

TizianoHV, Vince, ProtonFox, fcb, shakalnokturn and 19 Guests are viewing this topic.

Offline bd139

  • Super Contributor
  • ***
  • Posts: 23017
  • Country: gb
 

Offline mansaxel

  • Super Contributor
  • ***
  • Posts: 3554
  • Country: se
  • SA0XLR
    • My very static home page
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #47501 on: January 20, 2020, 08:13:44 pm »

Offline worsthorse

  • Super Contributor
  • ***
  • Posts: 1237
  • Country: us
  • aina varma, usein väärin
specialization is for insects.
 

Offline Specmaster

  • Super Contributor
  • ***
  • Posts: 14483
  • Country: gb
Who let Murphy in?

Brymen-Fluke-HP-Thurlby-Thander-Tek-Extech-Black Star-GW-Avo-Kyoritsu-Amprobe-ITT-Robin-TTi
 

Offline bd139

  • Super Contributor
  • ***
  • Posts: 23017
  • Country: gb
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #47504 on: January 20, 2020, 10:12:10 pm »
Ugh. This is what happens when there is disparity between idea and clue  :palm:
 

Offline nixiefreqq

  • Super Contributor
  • ***
  • Posts: 1028
  • Country: us
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #47505 on: January 20, 2020, 10:19:53 pm »
meter rapin' bastards!

(at least no nixies were harmed)
free range primate
 
The following users thanked this post: Cubdriver

Online Zucca

  • Supporter
  • ****
  • Posts: 4298
  • Country: it
  • EE meid in Itali
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #47506 on: January 20, 2020, 10:21:20 pm »
Can't know what you don't love. St. Augustine
Can't love what you don't know. Zucca
 
The following users thanked this post: bd139

Offline bitseekerTopic starter

  • Super Contributor
  • ***
  • Posts: 9057
  • Country: us
  • Lots of engineer-tweakable parts inside!
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #47507 on: January 20, 2020, 10:43:46 pm »
My ebay watch list is filled with obscure tiny scopes.  At one point I was even convinced to make an instagram for my NLS ms-15 scope :P.   Although tiny spectrum analyzer add on for tiny scopes are also great, I love the tek 1401.  For great obscure oscilloscopes I love the yamaha pt3 tuner, it was a scope designed for tuning instruments, a very specialized piece of adorable kit.

https://www.oscilloscopemuseum.com/oscilloscope-yamaha-pt3-s5049.html



That's really neat. Added to POI.
TEA is the way. | TEA Time channel
 
The following users thanked this post: alextwin007

Online tautech

  • Super Contributor
  • ***
  • Posts: 28136
  • Country: nz
  • Taupaki Technologies Ltd. Siglent Distributor NZ.
    • Taupaki Technologies Ltd.
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #47508 on: January 20, 2020, 10:52:34 pm »
USD ?
NZ cross rate to US$ is currently ~66c which converts to ~NZ$45.

us$ or €, yes  ^-^
Asked a question about the weight. Not heard back yet.  :popcorn:
~4.5 kg
Will check on some freight costs for you Martin.
« Last Edit: January 21, 2020, 08:42:50 am by tautech »
Avid Rabid Hobbyist
Siglent Youtube channel: https://www.youtube.com/@SiglentVideo/videos
 

Offline med6753

  • Super Contributor
  • ***
  • Posts: 11313
  • Country: us
  • Tek nut
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #47509 on: January 20, 2020, 11:02:55 pm »
Final check out of the 535A. Attempted to do some frequency response checks. Things didn't go so well as I'll explain.

The set up. Tek Type 191 Signal Generator. It can go all the way up to 100MHz.



I attempted to trigger on a 11MHz sine wave. No go. It wasn't until I lowered the frequency to about 9.5MHz that I could get at least some trigger. If I lowered it more down to about 9.1MHz I could get a stable trigger. And that's the disadvantage of these old tube triggers. The manual states it good to 5MHz and I guess they ain't kidding. But I was able to stretch it the 9.5MHz.

Here it is right at the limit at about 9.5MHz. Very unstable. Sweep speed set to 0.2us and 5X mag on. Aptitude set to 1.0V p-p. Any higher than this and it drops like a stone and screen goes blank. 



At about 9.1MHz it's stable.



At this point this project is done.
An old gray beard with an attitude.
 
The following users thanked this post: SilverSolder, worsthorse, bd139, Kosmic

Offline Specmaster

  • Super Contributor
  • ***
  • Posts: 14483
  • Country: gb
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #47510 on: January 20, 2020, 11:08:00 pm »
thats a great job med  :clap: :clap: :clap:
Who let Murphy in?

Brymen-Fluke-HP-Thurlby-Thander-Tek-Extech-Black Star-GW-Avo-Kyoritsu-Amprobe-ITT-Robin-TTi
 
The following users thanked this post: med6753

Offline SilverSolder

  • Super Contributor
  • ***
  • Posts: 6126
  • Country: 00
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #47511 on: January 20, 2020, 11:19:22 pm »
My ebay watch list is filled with obscure tiny scopes.  At one point I was even convinced to make an instagram for my NLS ms-15 scope :P.   Although tiny spectrum analyzer add on for tiny scopes are also great, I love the tek 1401.  For great obscure oscilloscopes I love the yamaha pt3 tuner, it was a scope designed for tuning instruments, a very specialized piece of adorable kit.





That is a super-cool little unit.  Instrument tuning is a lot easier and cheaper nowadays!





 

Offline WastelandTek

  • Frequent Contributor
  • **
  • Posts: 609
  • Country: 00
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #47512 on: January 21, 2020, 12:27:56 am »
those snark tuners are great!
I'm new here, but I tend to be pretty gregarious, so if I'm out of my lane please call me out.
 

Offline SilverSolder

  • Super Contributor
  • ***
  • Posts: 6126
  • Country: 00
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #47513 on: January 21, 2020, 12:57:07 am »
^yes, the Snarks cost like $8 or something and work incredibly well...  the Yamaha tuner must have cost a fortune in its day.
 

Offline beanflying

  • Super Contributor
  • ***
  • Posts: 7358
  • Country: au
  • Toys so very many Toys.
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #47514 on: January 21, 2020, 02:20:50 am »
Way back in the dim dark past a Brass Band I was playing with got one of the early Yamaha Digital ones. I have memories of it topping $400 30+ years ago.
Coffee, Food, R/C and electronics nerd in no particular order. Also CNC wannabe, 3D printer and Laser Cutter Junkie and just don't mention my TEA addiction....
 
The following users thanked this post: SilverSolder

Offline VK5RC

  • Supporter
  • ****
  • Posts: 2672
  • Country: au
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #47515 on: January 21, 2020, 03:20:28 am »
Interesting little fellows those snark tuners.
5yrs ago I was associated with a very serious Pipe Band (City of Adelaide) and was heavily involved in the tuning up process - we used Korg tuners initially - to get things close then used the interference 'beat' to finalise. It was quite difficult as bagpipes are very loud- esp if you are in the middle of 10-15 pipers playing their warm up set.
It is a long process - would take the best part of an hour to get all the pipers each 3 drones and also the chanter tuned up.
If done properly, you don't get the 'orchestral' effect and it ends up sounding like a single 'big' piper.
Unfortunately there is a lot of bad piping out there.
Whoah! Watch where that landed we might need it later.
 
The following users thanked this post: SilverSolder

Offline beanflying

  • Super Contributor
  • ***
  • Posts: 7358
  • Country: au
  • Toys so very many Toys.
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #47516 on: January 21, 2020, 04:17:40 am »
Correct some of the best Bagpipe playing is best heard at distance like several Valleys away  :-DD
Coffee, Food, R/C and electronics nerd in no particular order. Also CNC wannabe, 3D printer and Laser Cutter Junkie and just don't mention my TEA addiction....
 
The following users thanked this post: mnementh

Offline beanflying

  • Super Contributor
  • ***
  • Posts: 7358
  • Country: au
  • Toys so very many Toys.
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #47517 on: January 21, 2020, 04:25:06 am »
Most impressed with the new Bosch. 20 20mm holes 40mm deep only into MDF but the hottest part of it all was the Fortsner bit.  :-+

The middle holes will need to wait for some modding and I really should actually print out a 20mm chamfer bit I designed several weeks ago  :palm:
Coffee, Food, R/C and electronics nerd in no particular order. Also CNC wannabe, 3D printer and Laser Cutter Junkie and just don't mention my TEA addiction....
 
The following users thanked this post: BU508A

Offline mnementh

  • Super Contributor
  • ***
  • Posts: 17541
  • Country: us
  • *Hiding in the Dwagon-Cave*
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #47518 on: January 21, 2020, 04:54:01 am »
Oh, I see now. The holes are so when you and your drunken arse spill your pint, it just pours through to the floor instead of washing across and landing in your mate's lap...  :-DD

mnem
Got a numbnut spillproof peanut bowl too...?  >:D
alt-codes work here:  alt-0128 = €  alt-156 = £  alt-0216 = Ø  alt-225 = ß  alt-230 = µ  alt-234 = Ω  alt-236 = ∞  alt-248 = °
 
The following users thanked this post: SilverSolder, worsthorse

Offline mnementh

  • Super Contributor
  • ***
  • Posts: 17541
  • Country: us
  • *Hiding in the Dwagon-Cave*
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #47519 on: January 21, 2020, 04:58:26 am »
alt-codes work here:  alt-0128 = €  alt-156 = £  alt-0216 = Ø  alt-225 = ß  alt-230 = µ  alt-234 = Ω  alt-236 = ∞  alt-248 = °
 

Offline beanflying

  • Super Contributor
  • ***
  • Posts: 7358
  • Country: au
  • Toys so very many Toys.
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #47520 on: January 21, 2020, 05:55:51 am »
Oh, I see now. The holes are so when you and your drunken arse spill your pint, it just pours through to the floor instead of washing across and landing in your mate's lap...  :-DD

mnem
Got a numbnut spillproof peanut bowl too...?  >:D

Just added a Dwagon sized slops trench if you ever come visit  ;)
Coffee, Food, R/C and electronics nerd in no particular order. Also CNC wannabe, 3D printer and Laser Cutter Junkie and just don't mention my TEA addiction....
 

Offline mnementh

  • Super Contributor
  • ***
  • Posts: 17541
  • Country: us
  • *Hiding in the Dwagon-Cave*
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #47521 on: January 21, 2020, 08:38:10 am »
Just right to keep my "Dwagon-Size Teriyaki Beef Slim Jim" from rolling off and getting lost in the peanut shells on the floor. Well done! :-DD

mnem
*desperately seeking potstickers at Oh-dark-thirty in the AM*
alt-codes work here:  alt-0128 = €  alt-156 = £  alt-0216 = Ø  alt-225 = ß  alt-230 = µ  alt-234 = Ω  alt-236 = ∞  alt-248 = °
 

Online Wolfgang

  • Super Contributor
  • ***
  • Posts: 1773
  • Country: de
  • Its great if it finally works !
    • Electronic Projects for Fun
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #47522 on: January 21, 2020, 09:50:17 am »
Correct some of the best Bagpipe playing is best heard at distance like several Valleys away  :-DD

Disagree completely. It just needs to be done right, see here:
 
The following users thanked this post: mnementh

Offline bd139

  • Super Contributor
  • ***
  • Posts: 23017
  • Country: gb
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #47523 on: January 21, 2020, 10:10:51 am »
Nope. I personally still think that they should be chucked on the same fire as kazoos, banjos, vuvuzellas, piano accordions and the 808 cowbell
 

Offline beanflying

  • Super Contributor
  • ***
  • Posts: 7358
  • Country: au
  • Toys so very many Toys.
Re: Test Equipment Anonymous (TEA) group therapy thread
« Reply #47524 on: January 21, 2020, 10:16:09 am »
There is of course one occasion Bagpipes can be turned up to 11  >:D

Coffee, Food, R/C and electronics nerd in no particular order. Also CNC wannabe, 3D printer and Laser Cutter Junkie and just don't mention my TEA addiction....
 


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf