Must have been Allen Bradley :) Same problem here with military equipment!
On Thu, Nov 21, 2013 at 4:17 PM, Robert Atkinson <robert8...@yahoo.co.uk>wrote: > May be a bit of drift and reading back to front. Some years ago we bought > a quantity of moulded carbon compostion resistors from a top US > manufacturer. A sample check showed that none of them met the 10% > tolerance. The maufacturer said "bake them for a day two"! The resistors > then passed. Why not replace them with modert types you ask? Type approved > equipment with the original designers long gone and the current type > certificate holder unwilling or unable to approve the change. Welcome to > the world of aviation where we are still supporting equipment designed 50 > or more years ago. > > Robert G8RPI. > > > > > ________________________________ > From: Adrian <rfn...@arcor.de> > To: Discussion of precise time and frequency measurement < > time-nuts@febo.com> > Sent: Thursday, 21 November 2013, 20:53 > Subject: Re: [time-nuts] Off-Topic Question -- German Composition Resistors > > > Hi Bruce, > no. Same color code here. > However, certain carbon composition resistors from the 60's/70's are > notoriously unreliable. The common effect is drift to significantly > higher values. Besides that, they can get pretty noisy. > Adrian > > brucekar...@aol.com schrieb: > > While tracing out a PC board from an instrument manufactured in Germany, > I > > quickly discovered the color code on 1/4-watt composition resistors is > not > > the same as that commonly used in the US For example, I would measure > > about 10,000-ohms across a presumably good resistor that appeared to be > marked > > 2700-ohms. Has/does Germany used a different code for such parts? > > > > Bruce, KG6OJI > > _______________________________________________ > > time-nuts mailing list -- time-nuts@febo.com > > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > > and follow the instructions there. > > > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.