3%. Rolynn Tek Bvtn '66 / '71

Well, I have seen three percentages, 2% and 4% in normal tin-lead solder, and a much higher percentage in lead free solder - which is a tin-silver eutectic. I suspect that the Tek solder was around

Hi, I searched the archives but couldn't find any information on this subject. Could someone give me some advice on how much silver should be in the solder for working on Tek scopes. I've seen some

When.. a demonstrably working, clean "TEKTRONIX 7104 W/ 2=7A29 & 7B10 & 7B15" 1 GHz scope assembly produces ONE BID (albeit on 12/24!) two minutes before closure, at entry level

Hi Miroslav , the size of the lamp doesn't really matter. The idea is - to produce an initial power pulse with the cool lamp, then - to limit the current and - to have an immediate visual indication

I have a late (s/n B131600)Tek 7844 with options 78 (blue phosphor) and option 52. My early model 7844 manual knows nothing of the Option 52. Has anyone out there in the group got any info about

Hi, Anybody have a link to the schematic/service pdf file for the 454 (non A version)? Thanks, M. Hirsh

WTB: Tek 1M1 or equivalent plug-in. If you have one "surplus-to-requirements" please email Mike at: mikehardie@... Thanks and Merry Christmas. Mike VE7MMH

I'm hoping there are one or two of you out there who have worked on the C9 camera and may be able to help me with this one. I have two C9 cameras, one with flash, one without. The one with flash

Just had a closer look at the manual. Collector current is delivered by two cascaded emitter followers (the only semiconductors other than diodes in the unit!). It is then fed through a current

The resistor trick works. Unfortunatly the supply voltage or rail of the current source is about 10V, which limits the voltage excursion the you can get to about +- 10V, barely good enough for most

hello all what it all comes down to is most people in this group will help anyone that ask for it stan's replie say's it best if and when he put's manual's on ebay he might also have them for a modest

Hi, My scope comes up with the message Test 05 Fail 42. It seems to work okay except auto trigger doesn't work, not sure if there are other problems. One part of manual indicates main board

Yup - that works, with the proviso as described in the 575 manual: "The maximum current of the step amplifier will deliver to an external load is 2.4 amperes of either polarity (mA-per-step positions

Having a 575 for some time, I wanted to measure a FET, a depletion type like BF245 or the BF256. Now the thing is that the 575 does not support FETs. To make a good curve trace on a FET you need

I've got a 100% working RM503 here. It's a great scope, and seems to be ideal for trouble shooting my old PDP-8/E. It is sitting on top of the PDP-8/E rack. Hopefully one of these days I'll find an

I don't believe that Deane (Kidd) is even on the list, and his sales of manuals and spare parts *is* his business. He doesn't advertise - he relies on word of mouth (or the e-equivalent). All

well sorry for the ruffeld feathers but still if dean kid and stan and the for fathers of this group decided to make living's from there experience and resorces instead of just helping people.

Ken, When looking for culprit who drives e-bay prices sky high, looking in mirror is in order. We all lose site how really important is that piece that we bid on and get into competitive rage. People

I had a Philips PM3214B which I bought new in 1977 (couldn't afford a Tek at the time and the Philips went to 2mV/div and had an internal battery option). It was a good audio scope, but over time the