On Tue, 7 Jun 2022, Jim Ford wrote: First of all, GRRR! on that quoted message formatting. Guys, it is impossible to read that brain salad... As of UAA1016B, just $.25 -- could it be replaced with cur

Yes. --- ****************************************************************** * KSI@home KOI8 Net < > The impossible we do immediately. * * Las Vegas NV, USA < > Miracles require 24-hour notice. * *****

ZERO. --- ****************************************************************** * KSI@home KOI8 Net < > The impossible we do immediately. * * Las Vegas NV, USA < > Miracles require 24-hour notice. * ****

That "Add to basket" on UK site is a charm :) --- ****************************************************************** * KSI@home KOI8 Net < > The impossible we do immediately. * * Las Vegas NV, USA < >

Of the 3 494AP instruments I'm working on right now two have VRs marked as 644-0776-01. I don't know how those made it into those units and those two are quite different ones -- one is early numbers (

BTW, I forgot to mention that actual board matches schematic exactly. Don't know about those inductance values -- have absolutely no interest desoldering and measuring those -- but actual parts are AL

I doubt that IP protection guess. Back then they didn't have CADs and those designs were not just computer files. It was a bunch of paper drawings, mylar tape PCB designs and so on. Not even starting

On Thu, 15 Jul 2021, Ed Breya via groups.io wrote: Eh, there is NO logic needed. Wired OR is done without any diodes using OC/OD outputs. And it is done like that at the very bottom of the schematic.

On Thu, 15 Jul 2021, Ed Breya via groups.io wrote: It is pure logic, ON/OFF. 'LS145 pin active (low), +15V forward bias, pass diodes in full conductance, those shorting to ground reverse biased i.e. O

Can somebody come out with any reason for the CR3068 diode on VR 2nd Filter Select board (left bottom corner on the schematic on page 185 of 494A/AP Vol.2 Service Manual)? There are 5 filters there, e

On Sun, 27 Jun 2021, Richard Knoppow wrote: The problem with that "special cleaner" is that it is nothing but pure acetone (just read their MSDS). First of all, there is no reason to buy it in overpri

On Sun, 20 Jun 2021, Keith wrote: Russian 6N23P is a direct equivalent of 6DJ8. There are many thousands of those available from eBay (519 hits for 6N23P as of right now with some of those for lots of

On Fri, 22 Jan 2021, Mike Yepes wrote: Does it switch to frequency bands higher than 5? Bands for use with external mixers start with Band 6. > Hi, can Anyone help how to get higher frequency displaye

On Tue, 20 Oct 2020, Tom Lee wrote: There is a HUGE difference -- 7934 is a 500MHz _STORAGE_ scope, the best they ever made. It is rare as hens' teeth and it worth its price. However it might be not w

On Tue, 13 Oct 2020, - wrote: https://www.datasheetarchive.com/pdf/download.php?id=24af7b4875fe916a340b52c0b1a28a25290338&type=M&term=MC1217 Semiconductor Chips Data Book 1976 Original Datasheet: http

On Sat, 3 Oct 2020, David Sidrane wrote: I would also want to purchase one. Where is it supposed to be ordered from? Who sells those? > Hi Chris, > > Did you ever order any of the 260-2500-00? I would

Got the payment so it is no longer available. --- ****************************************************************** * KSI@home KOI8 Net < > The impossible we do immediately. * * Las Vegas NV, USA < >

Gentlemen: I'm going through all my stuff I accumulated in 20 years or so, trying to make some order, throw away whatever I don't need and salvaging whatever I can that might be useful. I have one 7S1

On Sun, 19 Apr 2020, Maurice Smulders wrote: Got it, thanks! > It's now on KO4BB's website. > > - Maurice > > On Sun, Apr 19, 2020 at 5:17 AM A Rhodes <rhodes@...> wrote: > >> Once you get the

On Sun, 19 Apr 2020, Maurice Smulders wrote: OK, thanks. Will wait for it to become available for download. > It's now on KO4BB's website. > > - Maurice > > On Sun, Apr 19, 2020 at 5:17 AM A Rhodes <r