Test Equipment Anonymous (TEA) group therapy thread

[mansaxel]

If things end well next week, I'll have not one but two GPSDO. What if they don't align? 

Simple answer? Hydrogen maser.

I might get PTP from my friends who run the RiSE / SP UTC node in Sweden. (equivalent to NPL / NIST / USNO / DCF) as a tie-breaker..

[med6753]

Re-cap continuing on the Type 321A. The opposite side and underneath is done. Now starting on this wall of shame. The problem is that the goopy plastic has almost completely obliterated the markings on the capacitors. So it's slow going measuring and verifying and doing one pull at a time...

Sometimes wiping hazy plastic with a paper towel dampened with vegetable oil improves clarity enough to read what's under it. I'd try that in this case too. Of course, you could also cut the plastic off with a X-Acto knife.

mnem
 

I have been wiping the plastic and it does help to read the values. I tired the X-Acto knife method and removed the plastic and guess what? It completely removes all remaining markings. 

[bd139]

RTFSM 

[med6753]

RTFSM 

Que? 

[DC1MC]

RTFSM 

Que? 

Lee el jodido manual de servicio. 

[tautech]

RTFSM 

And put a 16V rated cap on a 15V rail ?

[bd139]

I didn’t suggest following the SM. Merely reading it 

[mansaxel]

RTFSM 

And put a 16V rated cap on a 15V rail ?

Living on the edge!

[Zucca]

Must have measured it properly and off to the onsite bag now it is a 'proper' tool

And Yes Blue LED displays SUCK in bright situations

Thanks now I will buy a Laser cutter as soon as possible, you bastard.

[Zucca]

Planning my moving



Not cheap but not too expensive. Damm TEA is always grabbing out my money from the bank

[bd139]

D755 battle starts. I'm surprised it was even working with this primary filter caps!

[AVGresponding]

Discordiae sit vivere, est Philisthea!   

[ch_scr]

Back from the roadtrip and look what followed me home. Thought I got a deal on a SMU-alike unit. Trying it out I realized, it definitely is what it says on the box: "Precision DC Voltage and Current Source" Nobody said readback of said applied voltage or current.
It can limit, but will show overload when it does. And that is what is shown in the picture, charging a Lipo with the full 120mA it can supply and a max voltage of 4V. As it is on the brink of falling below 120mA and going into CV float, it flickers between oL and 4.000V.
Somehow I think I'm the muppet today. Goes to show you only see what you expect
At least it's only a year out of cal

[Saskia]

No discord, still on the road

[AVGresponding]

No discord, still on the road

Less typing, more driving!

Safe Journey

[tautech]

Back from the roadtrip and look what followed me home. Thought I got a deal on a SMU-alike unit. Trying it out I realized, it definitely is what it says on the box: "Precision DC Voltage and Current Source" Nobody said readback of said applied voltage or current.
It can limit, but will show overload when it does. And that is what is shown in the picture, charging a Lipo with the full 120mA it can supply and a max voltage of 4V. As it is on the brink of falling below 120mA and going into CV float, it flickers between oL and 4.000V.
Somehow I think I'm the muppet today. Goes to show you only see what you expect
At least it's only a year out of cal

The one and only one word that was missing was: Sink ! 
Lessons learnt. 

[ch_scr]

Back from the roadtrip and look what followed me home. Thought I got a deal on a SMU-alike unit. Trying it out I realized, it definitely is what it says on the box: "Precision DC Voltage and Current Source" Nobody said readback of said applied voltage or current.
It can limit, but will show overload when it does. And that is what is shown in the picture, charging a Lipo with the full 120mA it can supply and a max voltage of 4V. As it is on the brink of falling below 120mA and going into CV float, it flickers between oL and 4.000V.
Somehow I think I'm the muppet today. Goes to show you only see what you expect
At least it's only a year out of cal

The one and only one word that was missing was: Sink ! 
Lessons learnt. 

No, no. It does Sink! But it does not read back -.-

[bd139]

Ok D755 power supply refurbished

Before



After. Old caps removed, board cleaned, heatsink cleaned, new thermal compound, wire lands cleaned out ready for reinstallation.



Next job is to work out how to get a mains line into it as the weird ass connector has disintegrated. I have a few cable boots and some ideas to play with...

[tautech]

Only 2 of the screw head slots line up !   

[bd139]

Is this better? 

[BU508A]

Today  (Saturday) arrival:

The long awaited letter from overseas!  Thanks med for sending me this nice PCB adapter. 

[ch_scr]

Whiny Fan replaced . Now I can have a play without going crazy 

[Specmaster]

Bah, missed discord again  , spent the time driving around the supermarkets in a failed attempt to purchase some Mother's Day cards and presents, all cards and flowers etc completely sold out 

Shows how little imagination these accountants have in controlling the stocks they buy and hold. During this pandemic, they have had pretty much a monopoly on things like cards etc as the card shops are not allowed to open. Wouldn't you have thought that they would have ordered larger stocks knowing that they had the market cornered? 

[mnementh]

   Is this better? 

Yes... I won't have to come over there and make an adjustment. 

mnem
*punt*

[beanflying]

Is this better? 

Much more proper. We used to get wrapped over the knuckles (yes physically not verbally) for undressed screws in School so why should you escape here