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just for reference, I DO see R1185 in my 549, Scope Serial # - 001295. May be the change happened in later Revs? regds Rajesh wrote:

Interesting material Kurt, so thanx for the good work. Maybe more in the pipeline from other scopes? René

Hi, I know this is an old post, but same puzzle here. Trimpot R1185 and nearby flood-gate related components (appearing in the available PDF manuals) aren't physically present in my storage board

500-series plug-ins such as the 1L20 put out 0.1V/division. In contrast, 560-series mainframes expect the vertical plug-in to put out about 19.5 V/cm, due the architectural decision to have the

No, and not that I'm aware of.... I'm sure some enterprising soul could come up with an adapter tho. The 561 takes 2xx, and 3xx series plugins. For a 561, you're looking for a 3L5, or 3L10.... See the

Fabio thanks for some reason I did not receive the PM responce but oh well I have it now. The only problem with your idea on this board is that none of the through hole vias is they were never

Would it fit in a 561? Is there a plugin adapter for that purpose?

Careful you don't overcharge the NiMH battery. There's a resistor that can be increased in order to reduce the average current. But beware that on startup it carries a significantly higher current for

Hi Tom, Roger Thanks for the response(s) and yes, that is exactly the tag/wire I was worried about. A bit of tinned copper has been duly applied and all is running well. I can see that will be a

There's little point in fighting the inevitable. I have an inordinate fondness for 1502s - except for the PSU/ battery charger :( Capacitors are an obvious problem. The axial tants on the PSU are OK

Adrian, Yes, mine has exactly the same tag with a chopped off bare solid core wire 1cm or so remaining! I thought about querying this on the groups just after getting my 1502 to work but there were no

Hello Jim, The pictures did arrive correctly to me and I just posted the pictures to the Tekscopes photo section: link is here: /g/TekScopes/album?id=65983 As I already replied in PM

ITEM NUMBER 173454897871 ROLYNN

Got to kick this habit! I won a 1502 TDR machine for really not a lot of $. Was known non-working. The negative lead (from where the battery pack would have been if it had one) was black and crispy

http://w140.com/tekwiki/images/a/ad/Tek_545b_irb.pdf http://w140.com/tek_561_irb.pdf These PDFs were by made possible by Deane Kidd and his family and friends.

The various voltage combinations likely evolved to accommodate various fan types that were used over the years, and the actual cooling requirements. Some types may be marginal starting at reduced

Thanks for the 2236 schematics... indeed, yet another implementation ! LOL Tek just couldn't settle on something, seemed they were nevr happy with themselves ! ^^ It's still the same as all other

Hello, The recent discussion of various 22xx fan power supplies reminded me of an odd fan supply I saw awhile back, but I couldn't remember on what 22xx model it was. Some searching turned up this odd

Thanks As you can see I a not a chemist. I will order some 95% formic acid soon. Glenn

Thanks As you can see I a not a chemist. I will order some 95% formic acid soon. Glenn