Hello Dennis, i'm also would like to have a pcb. Jorgen dj0ud -at- web -dot- de

Probably dried out Electrolytic Capacitors in the Power Supply or on the Boards. The ESR goes better when warmed up.. AND: Some TDS-Series suffer from leaky SMD Elyts that makes a mess on the Boards a

Hello Chris, i have never heared about major temp problems with film caps, weird problem... Jorgen

I have not read the complete thread, sorry, very slow connection this time.. But, has that scope (Tek knows why they have used NE2 bulbs..!) some kind of diode / z-diode combination between grid1 and

Some Electroytic's problems on the board? Their ESR goes up due to age/dry out, but it sinks with rising temp and so at higher warmth it works again so far... Hence not the semi parameters change, but

Hopefully not covered with those leaky smd electrolytic capacitors like in the TDS-Series..! Jorgen

Typo in the Headline, -00 -01 has the same switch not the -02.

Hello Group, i'm looking for the Rep Rate switch for a 067-0587-00/01 (same) 7K Cal unit, my switch has broken-off and missing buttons and seems unrepairable.. I guess this switch is hard to find from

Over ten years ago i have repaired a T202, so it must be possible to open it... But i can't remember how i had open it, sorry. Even never seen a manual for it. It is not a "real" Tektronix, as far as

Hello John, thank you very much for your replys and the look onto the board! I will try the "new" version in the next week, i'm very curious about the diffference between B and E -outputs. Best wishes

Hello John, Mentioned Jim Williams (RIP, sad that you are gone so soon!! I have learned a lot from your Articles, Appotes ad Books) has always used the Emitter as the output for his Avalance Pulser Ci

Hello Tek friends, after a look into the PG509 Manual ( <http://www.ko4bb.com/cgi-bin/manuals.pl?dir=Tektronix/Tektronix_-_TM-500_Series/Tektronix_-_PG-509> ) i found that the Avalance-Transistor outp

Thank you Håkan, than i will try to get the -A and swap the boards. At the 540A is more damaged than the CRT itself so rebuilding it is not possible.. :-( Jorgen

Hi group, i have harvested a TDS540 which shows aquisition board error during self test. I could get a TDS540A for low quote with a smashed CRT and i think about to swap the aqui-board if possible. Ar

Hello, i have earned two 2225 with the same error symptom, the trace looks like beads on a string at the right time base setting. (intensity modulation) the low voltages have inconspicuous ripple, i e

Some interesting notes about those scopes could be found here: http://www.picosecond.com/objects/AN-02c.pdf Jorgen dj0ud

I could send you a used one, but tested OK at the curve tracer. Jorgen

earth the Often there is a good visible difference in trace thickness while switching the Bandwidthlimit-Switch at the scope to a low BW. On my 2465B in the BWL -State the scope has a good fine trace.

<david.partridge@d...> wrote: -snip- Also remember that resistorshave gone bad, too! I have found lots of resistors with changed values (up and down)as well as little (Elytics and None-Elytics) capaci

marked 500MHz and the line frequency is 60Hz here. Too sad you threw them away. Here the line frequency is 50Hz an i would have build a frequency multiplierfor that ;-) Jorgen