Hi Volker, Thanks for the ideas. The resistors are all within a short radius of each other. I hadn't thought about bundling them all together. I suppose I could epoxy them together as a last resort. I've got some EPF foam, so I could try putting that on the board right against them. In fact, I could try that while waiting for the new parts. I've already used foam to fill most of the space in the box, except for around and above the OCXO.
>________________________________ > From: Volker Esper <ail...@t-online.de> >To: Robert LaJeunesse <lajeune...@mail.com>; Discussion of precise time and >frequency measurement <time-nuts@febo.com> >Sent: Friday, January 31, 2014 1:51 PM >Subject: Re: [time-nuts] EFC divider resistors > > >Sorry, missing picture... > >Am 31.01.2014 20:47, schrieb Volker Esper: >> Here's how to place the divider resistors. The picture is from 1992, I >> didn't use SMDs then. But the results are promising at a very low price. >> >> >> Isolierband = insulation tape >> wärmeleit. Kern = thermoconducting core >> >> The picture shows two examples, the left one if you need three >> resistors, the right one if you need six. Use metal film types with low >> tempco. Keep in mind: it's the fluctuating _difference_ between the >> resistor values, that'll kill your stability. So avoid everything, that >> leads to different temperatures at the resistors. In particular avoid >> placing them into an airstream. >> >> Volker >> > _______________________________________________ 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.
