spam@... wrote: If this unit uses those little oil-filled caps in the HV supply, try hitting them with some freeze spray. My RM545B did this (as well as smoking the 6AU5 cathode resistor) due to

My Tek model 570 vacuum tube curve tracer seems to have lost the ability to keep the high voltage running. When it is first powered on, I get a nice trace, but the HV oscillator tube (6AQ5) looks

I am looking for the 'lock down assembly' for a TEK MOD-3 scope mobile cart. I am using a TEK R217 rack cart and would like to mount a lock down for my 7904. Anyone have a spare or any idea where I

I was going to suggest that maybe, with questions like that, you could use a copy of my book (OSCILLOSCOPES--Selecting and Restoring a Classic) that is full of such descriptions and includes both the

1A5 is an amplifier with differential inputs and up to 50 Mhz bandpass, depending on sensitivity. It has an input for a special differential probe P6046 and also has a comparison power supply

Does anyone know the difference between the 1A5 and 1A7 differential plug ins? thx ----------------------------------------------------------------- Michael Dunn | Surround Sound Decoder &

Strip off any easily strippable parts, hardware, knobs, etc, and sell grab bags of Tek parts. Tempting :-) Could you post a rough list of 7000 modules...? Any particularly "interesting"

We have a pile of 7A16P's, the programmable version of the 7A16, used in waveform digitizers like the 7912D and 7612AD. Unfortunately, we have no digitizers, so these are worthless to us, and do

Hi All, Where can I get parts for Textronix 7104 scope? I need the vertical channel switch IC. The component number is U668. Thank you in advanced. Feng

HI Don, The 7B87 can be used in any 7000 series main frame, including the 7904. Stan w7ni@... Don Crano wrote:

Dear Don! The 7B87 is a timebase that features a pretrigger aquire clock to enable a pretrigger otion in the digital storage mode of the 7854. It works in all other 7k scopes i own. The main

I know the 7B87 plug in is designed to support the features of the 7854 frame, but can it be used in a 7904 frame, or is it strictly for the 7854 frame? Thanks, Don

w7ni@... writes: it My experience is about the same. I have 5 or 6 502s and would really like to have one operating on each bench that I use for audio work, but they really need thorough

Hi Jeramy, An old Tek scope like a 502 always has SOME value but whether it is worth the cost the box and ship it is a good question. It is always a good idea to offer these things to the list but

Not sure what you could get on eBay, but don't trash it! I'll pay you a reasonable amount for stripped parts if you don't want to keep it together. Shipping intact might be prohibitive. Does it

Hello, I just rescued an old 502 Dual Beam Oscilloscope that was about to be thrown out, tubes and all. It is in slightly beat up shape. I am wondering if it would have any value to anyone here, or

sjhel@... wrote: Most scope problems, it seems, are in the power supplies. I would check the power supplies to make sure they are still regulating when the problem shows up. It would be helpful

Giving you part numbers would not be too useful, since the 1S1 still has the offset problems I mentioned. I got a couple of different types through Digikey. If you want to experiment, I expect

Hi stan, thanks for the website info. Stefan has kindly offered to photocopy his 545b manual so that's one hurdle crossed. The problems i'm having with my 545b are: The trace stops and becomes a

Hi Michael, Sorry: the request for you address should have gone to you directly, not to the list. I don't need payment; happy to be able to help you out. Regards, Arnoud.