Author Topic: Test Equipment Anonymous (TEA) group therapy thread (Read 36536758 times)

tonyalbus · « **Reply #60825 on:** June 12, 2020, 03:07:14 pm »

Quote from: Specmaster on June 12, 2020, 02:52:28 pm

Put those blue things on a component tester and that might identify it for you.

Still waiting for that from CN ;-)

its a db3 trigger diac.... seems you can use it with triacs... makes sense, with those BTA's and C'

med6753 · « **Reply #60826 on:** June 12, 2020, 03:08:34 pm »

Quote from: tggzzz on June 12, 2020, 03:00:07 pm

Quote from: bd139 on June 12, 2020, 02:46:49 pm
Don't forget Saturn 3 !
... for the same reason Barbarella is unforgettable

Nah!

Saskia · « **Reply #60827 on:** June 12, 2020, 03:26:04 pm »

does anybody have an
W25Q64FV
GD25Q127CSIG
XT25F32B
XT25F128B
in SOP 8
floating around ?

mnementh · « **Reply #60828 on:** June 12, 2020, 03:33:30 pm »

Quote from: bd139 on June 12, 2020, 02:46:49 pm

Don't forget Saturn 3 !

And MoonTrap!!! Walter Koenig's Tour de Force!!!

mnem
I floop the pig.

Saskia · « **Reply #60829 on:** June 12, 2020, 04:09:54 pm »

Walter König ? The PsiCop ? rated P12 ?

mnementh · « **Reply #60830 on:** June 12, 2020, 04:21:21 pm »

The same. But make sure you're well-toked the first time you watch MoonTrap; it's just not the same otherwise.

mnem

tonyalbus · « **Reply #60831 on:** June 12, 2020, 05:42:16 pm »

Finished the Counter mods...now its as good as it gets...

Dynatek DFC1000 Hung Chang 9100 Long Wei TFC1000L Maplin MF1000 Elenco F1000

0culus · « **Reply #60832 on:** June 12, 2020, 06:16:07 pm »

Quote from: mnementh on June 12, 2020, 03:33:30 pm

Quote from: bd139 on June 12, 2020, 02:46:49 pm
Don't forget Saturn 3 !

And MoonTrap!!! Walter Koenig's Tour de Force!!!

mnem
I floop the pig.

I shoulda guessed Bruce Campbell was in that.

Also what the eff did I just watch?

med6753 · « **Reply #60833 on:** June 12, 2020, 07:04:02 pm »

With the Type 561B restoration on hold awaiting the Type 3B3 Time Base plug-in I decided to take a look at the Type 106. Yesterday's pictures of the Hi Amplitude Square were ugly and the +/- Fast Rise weren't much better. I did find the issue. But first, look at this picture. Yes, that is a 680 ohm resistor and a disc cap hanging in the breeze. I thought that was my issue but no, they are in the Trigger Output circuit. Seems at one time there was some Gorilla activity. Resoldered them.

The issue turned out to be the bias control in the oscillator circuit being out of adjustment. Once adjusted properly things started to fall into place. Still not perfect but close.

This is what the Hi Amplitude Square now looks like. Much better.

And this is the + Fast Rise. Again much better and it's rise time is also improved but still not 1ns or less.

The - Fast Rise now has a decent output but the square wave is fubar'ed. More work needed here.

I think at this point the next step will be to re-cap the PSU and make sure everything is top notch in that area before I wind up chasing potential ghosts.

Saskia · « **Reply #60834 on:** June 12, 2020, 07:14:15 pm »

Rabbithole, here I come.

In order to fix the effing RockPi board I have to solder in a SOP 8 EEPROM, then set up a PXEboot environment, then bring the board into masking mode, hook it up to an Ubuntu server (not yet installed), OTA flash the SPI rom with an SPI bootloader, and flash that critter with M.2 boot firmware. Then PXEboot into the installer and install the OS on an M.2 disk I have floating around.

And all of this ONLY because the bloody uSD card slot is not available.
Bloody hell.

nfmax · « **Reply #60835 on:** June 12, 2020, 07:44:42 pm »

Quote from: mnementh on June 12, 2020, 02:09:03 pm

Now THAT's what I'm talking about! A (hu)man made it; a (hu)man can fix it. (Even if there's voodoo involved )

?? Doesn't work for children - or is that what the voodoo is for?

capt bullshot · « **Reply #60836 on:** June 12, 2020, 07:47:50 pm »

Quote from: tonyalbus on June 12, 2020, 05:42:16 pm

Finished the Counter mods...now its as good as it gets...

Dynatek DFC1000 Hung Chang 9100 Long Wei TFC1000L Maplin MF1000 Elenco F1000

Looks pretty much like this one (pls note the interesting / somewhat misplaced German a-Umlaut):

Test Equipment Anonymous (TEA) group therapy thread

Ice-Tea · « **Reply #60837 on:** June 12, 2020, 07:57:08 pm »

I know I asked before but I can't find it back...

Where would you guys go for a "budget" calibration? Official, but not nuts expensive.. For, say, a E4407B...

psykok · « **Reply #60838 on:** June 12, 2020, 08:01:38 pm »

Because you will always need one more and promised it's the last one .... Until the next one

med6753 · « **Reply #60839 on:** June 12, 2020, 08:05:08 pm »

Here's an interesting tidbit. The Type 106 uses four 7189A vacuum tubes. I was curious to see what they went for on Ebay and got a shock.

Big bucks. The reason? They can be used to sub out EL84's and 6BQ5's which are one of the audiophools favorite output tube for mid range power. And the 7189A can be used in circuits upwards of 400V while the EL84/6BQ5 is only good up to 300V.

I hope these never crap out.

bd139 · « **Reply #60840 on:** June 12, 2020, 08:06:53 pm »

Ugh just signed into Discord thinking it was Saturday. What a numpty

Ebay listings done for the day. One Ryzen 2600X, one cooler and one K2 (I bet that'll cause some groans in here

)

med6753 · « **Reply #60841 on:** June 12, 2020, 08:09:20 pm »

Better to be a day early than a day late.

Saskia · « **Reply #60842 on:** June 12, 2020, 08:15:14 pm »

just contemplating the which of the why ...

why do I feel the need to listen to Vietnam war songs right now ...

med6753 · « **Reply #60843 on:** June 12, 2020, 08:18:19 pm »

Quote from: Saskia on June 12, 2020, 08:15:14 pm

just contemplating the which of the why ...

why do I feel the need to listen to Vietnam war songs right now ...

Related but put this on instead.

bd139 · « **Reply #60844 on:** June 12, 2020, 08:23:49 pm »

Excellent choice. Wish I was around when that first came out (and not in America and not drafted

)

Saskia · « **Reply #60845 on:** June 12, 2020, 08:28:03 pm »

it's on the playlist. along with lots of CCR

0culus · « **Reply #60846 on:** June 12, 2020, 08:30:12 pm »

Quote from: med6753 on June 12, 2020, 08:05:08 pm

Here's an interesting tidbit. The Type 106 uses four 7189A vacuum tubes. I was curious to see what they went for on Ebay and got a shock. Big bucks. The reason? They can be used to sub out EL84's and 6BQ5's which are one of the audiophools favorite output tube for mid range power. And the 7189A can be used in circuits upwards of 400V while the EL84/6BQ5 is only good up to 300V.

I hope these never crap out.

On the bright side, the toobz used in test equipment will usually last a lot longer than those used on shadetree amplifier designs! On the other hand though, is there anything audiophools won't get their dirty fingers into??

med6753 · « **Reply #60847 on:** June 12, 2020, 08:31:26 pm »

Quote from: bd139 on June 12, 2020, 08:23:49 pm

Excellent choice. Wish I was around when that first came out (and not in America and not drafted )

I was around when it came out if I recall in '67.

I turned 18 in '71 and yes, I had to go to the Selective Service Office and register for the draft. But they had gone to a lottery system by that time. For that particular year when 18 yr old's were born (1953) all the dates of the year were tossed into big jar. Each day was then picked out and put on a big board labelled 1 thru 365. If your b day fell approx 150 or less pack your bags because Uncle Sam want's you. 150 and above you were pretty safe and not get drafted. What was my number? 330 (June 27) out of 365. Whew.

med6753 · « **Reply #60848 on:** June 12, 2020, 08:35:55 pm »

Quote from: 0culus on June 12, 2020, 08:30:12 pm

Quote from: med6753 on June 12, 2020, 08:05:08 pm
Here's an interesting tidbit. The Type 106 uses four 7189A vacuum tubes. I was curious to see what they went for on Ebay and got a shock. Big bucks. The reason? They can be used to sub out EL84's and 6BQ5's which are one of the audiophools favorite output tube for mid range power. And the 7189A can be used in circuits upwards of 400V while the EL84/6BQ5 is only good up to 300V.

I hope these never crap out.

On the bright side, the toobz used in test equipment will usually last a lot longer than those used on shadetree amplifier designs! On the other hand though, is there anything audiophools won't get their dirty fingers into??

They will never get these four. I'll smash them on rocks first.

Saskia · « **Reply #60849 on:** June 12, 2020, 08:37:52 pm »

the tubes used in my tube mono power amps are still available at 15 Brussels Pesos a shot.


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Author Topic: Test Equipment Anonymous (TEA) group therapy thread (Read 36536758 times)

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