Dave McGuire wrote:
On 07/23/2012 02:04 PM, Holm Tiffe wrote:
This monday the Tek has finally arrived.
There was no real function, it seemed that only the flood system was
working. Measured something here and there and found an non working OPV
in the HV Circuit (?A709),
Wow, I haven't seen one of those in a while!
Hmm, repaired an Tek 7904 last week, for sure they are in there too.
Since Tek used his own part numbers (156-0015-00), one only searches
what that beast really is if it is broken..
I have many such things in my parts boxes.
replaced it but still not working.
Finally decided to desolder the wires from the HV Transformer to heater
from the wirting gun and measured no connection. O shit.!
8-<
Dismounted the fan on the back and looked inside
towards the tubes socket,
...hmm crooked???? Pulled on the wires and the socked was loose.
I've found some bent Pins on the tube strigthened them carefully and took
the socket back in Place, switched on the Power and voila! The tube
pictured the test spiral...
Excellent!!
The Tube has some small burns, but really
isn't that bad. I think I'll
never see another Tek 6110 Storage Tube, so that thing must work as is.
(or has someone another in stock and wants to sell it into a good home?)
I have a "basket case" 611 here. It was raped for parts. Since I
recently got a copy of the documentation (thanks Richard!) I can now dig
into it and see what's missing. I hope to be able to repair it, but if
it's not repairable, I may not have much reason to keep it. (If it uses
the same CRT as my Tek 4012 terminal, which I think it might, then I'd
probably keep it for that reason.)
Nebraska Surplus does list such a tube:
(TUC) 154-0624-11 CRT Tek, GC1029,4012-599-220
$95 actually, but I think $95 and additional shipping costs overseas to the
really, really bad conditions of your american shipping companies pretty
much prevents me from buying that tube.., they also don't state that the
tube is new, so nobody knows what I would get for my money :-|
Tek used different versions depending on the serial no.
in the service manual. Maybe the same tube is in your 4012..
I think it will fit anyways, good for your 4012, bad for me ...
The SM for the 611 lists the following Versions:
154-0518-00 until SN B129999
154-0624-00 between B130000 and B199999
154-0624-11 between B200000 and B227329
154-0624-12 B227330, B226520 ??
I know an -01 also exists.
Maybe the -12 has a different phosphor, whow knows...
I think tests with the PDP11 and D/A converters
have to wait until winter,
thats getting too much warmt in here...
You'll have to take a lot of pics of that!
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA
Yea, I know. :-)
Does someone have some Vector Maps to display?
Regards,
Holm
--
Technik Service u. Handel Tiffe,
www.tsht.de, Holm Tiffe,
Freiberger Stra?e 42, 09600 Obersch?na, USt-Id: DE253710583
www.tsht.de, info at tsht.de, Fax +49 3731 74200, Mobil: 0172 8790 741