Author Topic: Tank II (Read 72600 times)

Level42 · « **Reply #40 on:** January 14, 2008, 03:20:12 pm »

Aha !

Gotta eat one next time I visit the US

ChadTower · « **Reply #41 on:** January 14, 2008, 05:48:16 pm »

Cap kit is done... not sure of the state of the power supply filter caps, but I can address those next if necessary. Now I just have to figure out how to get a known good video signal into it, probably from a VCR.

ChadTower · « **Reply #42 on:** January 14, 2008, 06:20:46 pm »

Doh... the thing has a 2A and a 3A fuse in it... the manual says they should both be 1A SB. I'll have to get some tomorrow.

ChadTower · « **Reply #43 on:** January 15, 2008, 09:44:56 am »

I've never worked on a monitor independently of the cab before, so I want to be sure my plan is solid... have a thread in the monitor forum so someone can point out my folly before I end the world.

shardian · « **Reply #44 on:** January 15, 2008, 11:00:45 am »

Quote from: Level42 on January 14, 2008, 03:20:12 pm

Aha !

Gotta eat one next time I visit the US

NEVER ATE A CORNDOG!!!

To make me feel less sorry for you, please add some great food you've had that Americans won't have had...if you can.

Level42 · « **Reply #45 on:** January 15, 2008, 01:13:36 pm »

1) Dutch/Belgian Fries (THICK, not those poor skinny French stuff) with Mayonaise

2) Stroopwafels

3) Raw herring (freaking delicious ! Beats Sushi !!! This is THE way to eat it, hold it by it's tail, hang it over your mouth and.....eat

)

4) Drop

5) Kroket

6) Chocoladevlokken (you eat it on a slice of bread)

7) Poffertjes (with powder suger and REAL butter)

Hah, and they say we have a terrible "cuisine"

ChadTower · « **Reply #46 on:** January 15, 2008, 01:18:51 pm »

A lot of that stuff is available here under other names, I think....

...we used to catch herring by the thousands when I was a kid, when they migrated up narrow streams to spawn. We'd just stand there with huge nets and pull them in, more fish than the stream could even handle. I'm pretty sure they were herring, anyway. My uncle had two sheds dedicated to smoking herring.

My brother and I tried to cut down the mightiest tree in the forest with a herring once. It didn't go so well.

Kevin Mullins · « **Reply #47 on:** January 15, 2008, 01:22:50 pm »

Stroopwafels ROCK !!!

(we get them sent to us as often as we can)

Ooh ...... Chocoladevlokken ..... that stuff too that I can't pronounce!!

Level42 · « **Reply #48 on:** January 15, 2008, 01:28:28 pm »

Yeah, we bring them to American relatives and friends whenever we meet. They are quite popular with them

Maybe less-known: Dutch cigars are great. Brought some to a friend who loved cubans.....but the Dutch brands are a bit more "manly" I'd say, not as sweet tasting.

Had fun with friends from the UK when we were eating raw herring. Some tried it and loved it, some almost had to ......... at the mere sight of us eating them

Chad......did we get off-topic here ? I think we did. Sorry !!!

Kevin, my aunt in MA orders stuff at some Dutch store overthere, they have all these kind of things...need info ?

ChadTower · « **Reply #49 on:** January 15, 2008, 01:41:36 pm »

Quote from: Level42 on January 15, 2008, 01:28:28 pm

Chad......did we get off-topic here ? I think we did. Sorry !!!

Kevin, my aunt in MA orders stuff at some Dutch store overthere, they have all these kind of things...need info ?

I don't care about OT. I'm one of BYOAC's biggest OT culprits.

May as well post the MA store info here. I live in MA.

JimmyU · « **Reply #50 on:** January 15, 2008, 02:47:08 pm »

And don't forget all that wonderful Belgian beer.

shardian · « **Reply #51 on:** January 15, 2008, 02:54:48 pm »

My mom ate herring all the time when I was a kid. Oh man that was nasty. Its the only food on earth that starts to smell better as it rots.

Level42 · « **Reply #52 on:** January 15, 2008, 05:51:29 pm »

There are two things you don't smell

1) Herring
2) ......nahh.....I guess you figured it

Chad: I know your from MA, it would have been nice if the New England meet could have materialised late 2006....I've spent most of the time in MA, but also NH (FUNSPOT !!!) NY, Vermont (is that correct ?)

Was a great holiday

ChadTower · « **Reply #53 on:** January 16, 2008, 03:48:03 pm »

Pins, connectors, and replacement for one of the filter caps ordered from Mouser. I find it pretty annoying that Mouser won't give you an exact shipping charge figure when you submit the order.

ChadTower · « **Reply #54 on:** January 16, 2008, 08:46:43 pm »

Broke out my CRT tester/rejuvinator... the one I got from that massive Freecycle score a couple of years back but have no idea how to use... turns out it will work very nicely on this CRT, given that the tester was made in the mid 1970s too. Have to get up the nads to try it, but once I do... it should make a real difference.

ChadTower · « **Reply #55 on:** January 18, 2008, 09:28:00 am »

Read the manual back to back 3 times, then broke out the CRT tester to run this CRT through its paces. It passed all tests except "G1 Shorts", which the manual says is a type of short circuit within the neck. I tried to use the "Remove G1 Shorts" function but it didn't work. Apparently that either means that the short is not repairable via this tester or that the function isn't working properly. It is described as discharging a capacitor into specific pins to burn off whatever foreign material is causing the short... and I should see a small flash in the neck when it makes the attempt. I saw no flash. Given that the tester is 30 years old as well I'm betting that capacitor is dead, not building up the charge, and thus not properly discharging. I'm thinking of opening up the tester and seeing if I can re-cap that too. It's too cool a tool to not have working.

Cakemeister · « **Reply #56 on:** January 18, 2008, 12:00:38 pm »

Quote

Stroopwaffels FTW!

ChadTower · « **Reply #57 on:** January 18, 2008, 01:32:37 pm »

Just found this RGVAC thread. Exactly what I'm looking for... plus look at the names in that thread. Doesn't get more credible than those guys.

Level42 · « **Reply #58 on:** January 18, 2008, 02:02:32 pm »

OK, OK. I get most of those abbreviations by now but what is FTW ?

Randy who ?

Bob who ?

Ten years ago !!

Randy writes:
"With so many CRTs in the world today, the ability to test and repair (yes, repair!) CRTs can be pretty darned handy."

How times have changed.....should now be:
"With so few remaining CRTs in the world today, the ability to test and repair (yes, repair!) CRTs can be pretty darned handy."

ChadTower · « **Reply #59 on:** January 18, 2008, 02:07:19 pm »

Quote from: Level42 on January 18, 2008, 02:02:32 pm

OK, OK. I get most of those abbreviations by now but what is FTW ?

It's usually for the win. Sometimes ---fudgesicle--- the world.

I think that last point is especially true of black and white tubes... it's not going to be easy to find a new tube or whole monitor if I can't get this one back.

ChadTower · « **Reply #60 on:** January 18, 2008, 02:20:27 pm »

That thread lead me to this... which is very useful right now.

EDIT: just dropped that into the Wiki.

ChadTower · « **Reply #61 on:** January 18, 2008, 02:49:32 pm »

Some indirect info about that in circuit cap checker...

ChadTower · « **Reply #62 on:** January 19, 2008, 06:01:35 pm »

Quote from: ChadTower on January 16, 2008, 03:48:03 pm

Pins, connectors, and replacement for one of the filter caps ordered from Mouser. I find it pretty annoying that Mouser won't give you an exact shipping charge figure when you submit the order.

Parts are in... the big cap I mistakenly ordered axial but I think I can make do with it.

Level42 · « **Reply #63 on:** January 19, 2008, 07:24:06 pm »

Quote from: ChadTower on January 18, 2008, 02:49:32 pm

Some indirect info about that in circuit cap checker...

Why can't all meters in life be like that ?

Good-Bad.

Nice.

ChadTower · « **Reply #64 on:** January 23, 2008, 08:16:40 pm »

A couple of progress pics for your entertainment.

The monitor out, with the chassis PCB off and the metal subhousing up to expose the sordid underbelly of Motorola monitors.

Out, from above with the chassis PCB missing.

The test harness I just made for using composite video and independent AC power outside the cab. I need a better crimper.

IG-88 · « **Reply #65 on:** January 23, 2008, 09:37:32 pm »

I read of heard somewhere that these old tubes sometimes lose their vacuume over time. Have you ever heard of that or is that just an old wise tale?

ChadTower · « **Reply #66 on:** January 24, 2008, 07:49:49 am »

It can happen. Doesn't have to, but yeah, it can happen. Can happen with new ones, too.

ChadTower · « **Reply #67 on:** January 25, 2008, 07:46:19 pm »

Still needs some work... it's very dim. That may be the tube, I'll recap the rejuvinator and try that again.

Testing the control pots:

1) contrast has some range
2) brightness does nothing
3) vertical hold has some range
4) horizontal hold has some range
5) width does nothing

That's not counting the pots right on the PCB. I did tweak the vertical size to get the pic to fill the tube, so that is okay, though it's way open now.

And now that it has been running 20 minutes I can see retrace lines if I look closely...

Level42 · « **Reply #68 on:** January 26, 2008, 05:39:08 am »

Man is that a nostalgic look or what ? I'm old enough to remember that our first TV was black & white. The day we got our brand new color TV I will never forget

The lack of PCB's is scaring for me

IG-88 · « **Reply #69 on:** January 26, 2008, 07:56:43 am »

Hey! Good job! You're getting closer. When you are done you ought to put a old PC in the cab with a tuner card and use it to watch a bunch of old B&W John Wayne war flicks or similar. Just to make it a little more useful.

ChadTower · « **Reply #70 on:** January 26, 2008, 11:15:55 am »

Quote from: IG-88 on January 26, 2008, 07:56:43 am

Hey! Good job! You're getting closer. When you are done you ought to put a old PC in the cab with a tuner card and use it to watch a bunch of old B&W John Wayne war flicks or similar. Just to make it a little more useful.

Heh. If I can't get the boards working I may stick a 2600 emulator in there, actually. These are in such nice shape, though, I'll be surprised if they're that far dead.

I was sitting here staring at the monitor a few minutes ago and came to a realization. If this monitor is taking composite input... then the boards are obviously putting out composite... and thus I should be able to use any composite TV to test the boards with. Given that I should be able to work on the boards independently of the monitor too.

I'm considering trying to source a 19" b/w TV just in case I need to do a tube swap. There is a recycling depot in my town that would probably let me take TVs for free but I'm not sure the guy who runs it would let me test them on the site.

ChadTower · « **Reply #71 on:** January 27, 2008, 09:57:24 am »

I'm trying to find individual replacements for all of the caps in that power supply multican... but they're all round values that don't seem to be available now. I can't find a 400uF 125v cap anywhere. Mouser had a couple listed but they were not only 8 weeks' lead time but they were $30! What I'm trying to find now is either a cheap ESR meter, since I can't figure out how to read the ancient one I have (or tell if it still works), or some solid info on substituting cap values. I know you can go up in voltage but I can't find anything about how far off in farads you can go.

danny_galaga · « **Reply #72 on:** January 27, 2008, 07:25:24 pm »

Quote from: Level42 on January 15, 2008, 01:13:36 pm

Hah, and they say we have a terrible "cuisine"

you missed out the 'fruit' sprinkels. my favourite kind (",)

theres a dutch specialty shop not far from here (only one in brisbane in fact). i think ill go get me a packet this week...

danny_galaga · « **Reply #73 on:** January 27, 2008, 07:27:59 pm »

oh, and bloody good work you're doing there chad. i vaguely recall when i first joined that you hadn't even soldered anything before. now, THIS! hats off to you (",)

edit: and when you have it cleaned up, please submit a pic to klov as theirs is pretty ordinary to say the least...

ChadTower · « **Reply #74 on:** January 27, 2008, 10:16:08 pm »

Quote from: danny_galaga on January 27, 2008, 07:27:59 pm

oh, and bloody good work you're doing there chad. i vaguely recall when i first joined that you hadn't even soldered anything before. now, THIS! hats off to you (",)

edit: and when you have it cleaned up, please submit a pic to klov as theirs is pretty ordinary to say the least...

Thanks, bro. When I first joined BYOAC I knew nothing about electronics beyond how to attach stuff to your TV. Literally - just about nothing. Years of studying on my own, and a buttload of advice from people here and on places like RGVAC... these resources and the people on them are amazing.

When I get this cleaned up I can submit pics, no problem. Any suggestions as to what shots to get?

danny_galaga · « **Reply #75 on:** January 27, 2008, 10:22:52 pm »

anything would be better than what they have

but maybe a 3/4 shot or something of its best side, a good shot of the CP and maybe if you could make an actual screen shot (im guessing by actually taking a picture)

ChadTower · « **Reply #76 on:** January 27, 2008, 10:27:29 pm »

A really good CP shot wouldn't be hard... the art is in fantastic shape on this one. You'll see when I get to that part just how nice the CP is on this one. Nearly unmarked.

I'm looking at the woodgrain laminate on the sides now... it's quite nice but does have chips out along the edges in some places. I'm on the fence about that. I'm sure I could find a very similar laminate to replace it and make it minty... but this is the original laminate. Maybe it will be an easier decision when I replace the beaten on T molding.

Level42 · « **Reply #77 on:** January 28, 2008, 01:48:53 am »

Has anyone ever seen their photo's actually added to KLOV they sent in ? I've mailed a number of pictures and they never show up.

ChadTower · « **Reply #78 on:** January 28, 2008, 07:41:18 am »

When I first got the Tank II I tried to contact them about submitting better pictures... never got a response.

Fozzy The Bear · « **Reply #79 on:** January 28, 2008, 11:56:51 am »

Chad Mate!!! Re: your lack of an ESR Meter...... I think you might have missed my last post in your other thread.
http://forum.arcadecontrols.com/index.php?topic=75988.msg789520#msg789520

Well done on the re-cap. I suspect you may be right about the condition of that tube. If you're seeing retrace lines, then it's being over driven a bit. Turn the tube drive on the LOPT down until they more or less vanish when you're displaying a black screen.

Best Regards,
Julian (Fozzy The Bear)


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