Thanks for the info, John, really nice of you to provide it. Cheers, Damian

Wear safety glasses, make sure you can cut off power quickly from a remote switch, have a CO2 fire extinguisher at hand. Just kidding :-) or maybe not... The variac thing can destroy some designs of

I have not found any white T-3/4 sized LEDs which have the proper viewing angle to work with the light pipes. There is also not really enough room to add series resistors. The grain of wheat bulbs

Hi, I keep forgetting about the lamp switch on the back of the power supply. Otherwise the rheostat on the front only controls the graticule lamps on my 7704A. The biggest problem on jobs like the

It's all yours Peter. I'll send you an email. Jay

If nobody else claims it I'll take it. I can fix it and give to a student. I work in Milford.

Hi, this is definitely NOT normal. I own a 2712 by my self , but this shift ... or something like this is not normal. If you have TG... this will move a littlebit in

This 465 was working up until this morning, now has no display, and the low line indicator is lit - probably cap(s) or something. Not worth the trouble to fix. Comes with a scope cart as well if you

Hello, In my case, electrolyte caps replaced only on the Digital Storage Display apparently originaly a 2715 version (i do not know why) has about 7 SMD electrolyte caps which were leaking (visible

<too_many_tools@...> wrote: First of all, open each unit, check for stuff like moths, dead rats, snakes, cockroaches, spiders. A buggy unit can break when you power on. Then, store the units in

Hi guys, may I ask why you don't replace those with LEDs? Thanks, D.

that long Power supply capacitors will possible need to be re-formed, and may have (a) dried out and have low capacitance/high ESR or (b) with twist-lock Sprague they may have gone open circuit.

There are basically two schools of thought on that - one is to bring them up slowly with a variac and watch for any problems, and the other is to just plug them in and see what happens. I adhere to

Reducing the incandescent lamp voltage has a huge effect on life which is inversely proportional to the 16th power of the voltage. Most (all?) of the 7000 mainframes have adjustable lamp voltage and

I have received a number of Tektronix oscilloscopes and logic analyzers that have been stored unpowered for over 20 years. I have yet to apply power to them. What preparation if any should I do to

I wonder if reducing the lamp voltage slightly to increase their life would be worthwhile? Perhaps a silicon diode in series with their supply would give about 0.7 volts drop and improve life (a

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Many thanks folks, for all those really fine comments. Very prolific group, great ! Regards Alain Le 17.07.2013 00:39, Ed Breya a �crit

<daviddigiacomo@...> wrote: The 7A13 "pull for x10 Vc" function would require another x10 switched input attenuator to implement without relays. I am just suggesting that Tektronix made more

Hi All: I just got in my 'parts' scope, it's missing Ch1 and the little pushbuttons on the 10X mag and trigger slope are broken off flush...but function if I use a toothpick in the holes. Cost $150

>have a 7B92 ser# B031627. This unit loses stable trigger as it warms up. If I put a heat gun near the tunnel diodes the trigger will die completely in a very short time. I was trying to