What value are you going to change it to? Since the frequency is too low, you probably have to reduce the capacitance somewhere. This one is only 24 pf 5% tolerance. It seems unlikely that this by itself is setting the frequency. It's rather small and the tolerance is rather large. Is there another larger capacitor in parallel with this one? This one might be the 'trimmer' they used to get the frequency within adjustment range. I've seen that idea used in my Sulzer 2.5 and Oscilloquartz 8601 - which both use the AVX glass capacitors, by the way! If this is the 'trimmer', then just remove it. That worked for my 8601. I removed 91 pf that was in parallel with 1200 pf to raise the frequency enough to bring it back within adjustment range. Ed On 2016-11-23 5:04 PM, Christopher Hoover <ch@murgatroid.com> wrote: > Subject: Re: [time-nuts] Inside of FT1200-100 > Message-ID: > <CACw0PsbZQaGoqFhbqBpLrU6+VR0MRtx_aR1bu00yDFokKW8FuQ@mail.gmail.com> > Content-Type: text/plain; charset="utf-8" > > And of course it is a discontinued part. > > Taking suggestions for a replacement. COG(NP0)? > > > On Wed, Nov 23, 2016 at 12:25 PM, Christopher Hoover<ch@murgatroid.com> > wrote: > >> >Part number decoder on page 4 of: >> > >> >http://www.mouser.com/catalog/supplier/library/pdf/AVXGlassDielectric.pdf >> > >> >CY = glass >> >06 = case size >> >C = operating temp (-55 C to +125 C) >> >240 = 24 pF >> >J = tolerance (+/- 5%) >> >