Tektronix 7603

Tektronix 7603
Posted by BaileyAV on 05 Dec, 2015 04:58
I received a tektronix 7603 yesterday from america (i live in australia) and the shipping was so poor that some of the dials were pushed in and broken. i have attached photos of the damage and the circuit board that has been affected.

the company that sold is it offering me a $50 refund for the damage so i was wondering if i can get a replacement circuit board/face and fix it for a decent amount of money.

Thanks.

#1 Reply
Posted by BaileyAV on 05 Dec, 2015 06:42
also, if its too hard to find the part id appreciate being told so i can push for a full refund.

#3 Reply
Posted by BaileyAV on 05 Dec, 2015 07:02
i appreciate the page but thats mainly cosmetic knob replacements..

the metal knobs i have are actually bent i would like to replace the entire thing

#4 Reply
Posted by miguelvp on 05 Dec, 2015 07:32
At least the manuals will tell you the part number for the other pieces so you can find them if available.

#5 Reply
Posted by BaileyAV on 05 Dec, 2015 07:50
gotcha!

seems like a special order peice that going to cost me almost as much as the scope did

#6 Reply
Posted by miguelvp on 05 Dec, 2015 08:17
Well if you can't use it and the seller doesn't want it back. I do collect 7000 plug-ins. Maybe if you want to get rid of the 7D01 and the DF1 I will find them a good home either here (bottom one):

or here:

Of course if the price is right

#7 Reply
Posted by BaileyAV on 05 Dec, 2015 08:36
i have never intended to use those plugins anyway - ive got others on order.

one of the knobs was cracked and the outer length of it is slightly bent. apart from that there is no damage i can see and if i end up having this scope you most certainly can have it. ill let you name the price as long as its not a completely one sided affair

#10 Reply
Posted by tooki on 05 Dec, 2015 13:41
I'd insist on a refund and leave poor feedback. Otherwise they won't learn to pack things properly, which is, frankly, the absolute basics of online sales.

#11 Reply
Posted by tautech on 05 Dec, 2015 18:19
Some Docs and links that might help:

https://www.eevblog.com/forum/repair/repair-documents-and-links-sticky-me-please-mods/msg477909/#msg477909

Sphere have lots of stuff and a section with additional reference material fo X reference.

#13 Reply
Posted by dom0 on 05 Dec, 2015 22:32
Quote from: BaileyAV on 05 Dec, 2015 12:22
it lists them as the same part number but they are very clearly different peices - even in the manual you can see the difference.

The replaceable parts list usually have a few errors.

#14 Reply
Posted by miguelvp on 05 Dec, 2015 23:29
I think the 33 is must the screw part not the actual piece you highlighted since that's from the mechanical section of the manual.

On page 158 of the following pdf file you can see the Calibrator and Mode switches circuit board with the parts you highlighted (at least I think that's the one) with the part numbers on page 140.

http://www.ko4bb.com/manuals/205.178.121.21/Tektronix_7603_Service_Nov1977-hi-res.pdf

#15 Reply
Posted by BaileyAV on 06 Dec, 2015 00:17
i have attached photos highlighting what i am after. they dont actually appear on the diagram you posted even though one of the switches plugs into it.

#16 Reply
Posted by miguelvp on 06 Dec, 2015 00:35
Oh I see, hmm it only says variable resistor, but I can see one of the ones on your pictures have some values on them

I've even looked at the 7613 manual and it has 3 of them, no part number.

#17 Reply
Posted by miguelvp on 06 Dec, 2015 00:52
I'll try to find it, but maybe it's in here:

http://www.qservice.tv/tek_spares3.htm

Is there a part number on the actual component?

#18 Reply
Posted by miguelvp on 06 Dec, 2015 01:43
Another source for pots, this place is linked on tautech's post

http://www.sphere.bc.ca/test/tek-parts/tekpots.html

But if you could look at the part number on the pots (should start with 311-) that would help a lot to be able to find them.

#19 Reply
Posted by BaileyAV on 06 Dec, 2015 02:08
i have to go buy some tiny allen keys to get the pots off my standard kits arent small enough.

in the meantime - the CRT was also damaged in the shipping - photo attached.

This isnt in the visible area but should i look at getting a new CRT?

#21 Reply
Posted by BaileyAV on 06 Dec, 2015 02:41
so the best bet would be to turn it on and see if i can display a trace properly?

ive been worried about turning it on in case i do - it goes bang and it somehow negates my being able to get a refund