Help evaluating a tek 465b

[lem_ix]

I am considering buying this scope as it has a decent price (110 eur) but I have no experience with these machines and the settings are all over the place. Why am I seeing double traces?

Pics on local ebay clone:
https://www.kupujemprodajem.com/big-photo-51716294-4.htm

[bd139]

There’s something wrong with that. The buttons to the left hand side of the screen are the channel mode selector. Only one should be pushed down and they all are. Might be the locking bar broken or someone has munted it. It’s difficult to get to those switches to fix as well - whole thing has to be taken to bits. Other than that it looks in good condition.

The two traces should exist. It’s a dual trace scope.

[w2aew]

There’s something wrong with that. The buttons to the left hand side of the screen are the channel mode selector. Only one should be pushed down and they all are. Might be the locking bar broken or someone has munted it. It’s difficult to get to those switches to fix as well - whole thing has to be taken to bits. Other than that it looks in good condition.

The two traces should exist. It’s a dual trace scope.

All of the vertical selection buttons can be depressed, perfectly OK.  They are not mutually exclusive.  Since both CH1 and CH2 are pushed in (selected), that's why you're seeing two traces.   The Horizontal UnCal light is one, but that's because the vernier is not in the Cal position - again, normal.  Scope Trigger light is on, again normal because LINE trigger is selected.  The user hasn't focused the trace, or adjust the horizontal position correctly.  Based on one picture - nothing obviously wrong, but it's impossible to tell more than that.

[bd139]

Sorry I was thinking 465 not 465b .

Well spotted.

[lem_ix]

Should reiterate, by double I mean the smearing on each of the two channels On one of the pics you can clearly see 4 lines while nothing is connected.

EDIT:

If it was focus wouldn't the smearing still be just one line even if really smeared?

[lem_ix]

To be more specific

[Specmaster]

Surely the vertical switches all be returned to the normal "UP" position and the input switches set to select just one channel and the sweep set to either .1 or .02 mS, set the vertical and horizontal control to midway and select input ground on the input coupling switch. The trace observed at that point, which should be a single line and the focus control used to sharpen the line to its thinnest?

I was always taught that was the basic and safe way to start of a scope and if things go south and you seem have get in a mess, return the controls to that position to check if trace etc is normal?