[time-nuts] Tektronix Type 602 manual

Magnus Danielson magnus at rubidium.dyndns.org
Fri Nov 7 14:35:11 UTC 2008


> Magnus Danielson wrote:
>>> I'm in the middle of scanning a 602 manual right now- might be next
>>> week till I get done though.
>>> Been chasing one for a while now although not enthusiastically enough
>>> to pay anyone for it as my 602 is still operating OK.  Recently found
>>> a friend had one salted away complete with manual so have borrowed the
>>> manual to scan.
>>>
>>> Lest there be some confusion, the 602 is just a basic X Y Z crt
>>> display. So there's only a few schematics, the power supply, the Z
>>> amp, the deflection amps and the CRT cct.
>>
>> This is exactly what I am looking for. :)
>>
>> If you could manage to scan the schematics that would give me a head
>> start, but I am in interested in the full manual of course.
>>
>> The 602 is very nice as you can hook it up to a SR620, which is what I
>> need.
>> The only dowside is that the 602 expects wide range of signals. A pair
>> of
>> simple audio frequency gain stages would solve that.
>>
>> However, currently I am lacking the dot on the screen to begin with.
>> Power
>> lines seems OKish but could be trimmed.
>
> Pull the deflection plate wires off of the neck of the CRT and see if your
> dot comes back.

Could try that. However, from previous operation you could always see that
it was offscreen. I consider Z mod or something to be off. All the boards
are simple to reach on the sides and it would be quite possible to reverse
engineer it but schematics and component placements rules. Circuit
description and trimming indications help further naturally.

For things like this, digital scopes does not really cut it. They are good
for other things thought.

Cheers,
Magnus



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