[time-nuts] Re: Looking for information on the Interstate Electronics LF610

[Gavin Groce]

Hello,
Yes when the changes were made to the signal most of the older units that
used carrier phase are no longer supported, I don't think this is one of
them, it has no crystal and I think it might have been part of a multiple
unit setup.

Gavin

I am still going to try and repair it as it's a cool unit.

Gavin

On Fri, Jul 10, 2026, 10:38 PM Bob kb8tq via time-nuts <
time-nuts at lists.febo.com> wrote:

> Hi
>
> Unfortunately, the broadcast format for WWVB has changed over the years.
> The new format
> typically is not compatible with the older radios. You need to build a
> gizmo that receives the new
> format and locally generates the old format for them to operate.
>
> Bob
>
> > On Jul 10, 2026, at 8:12 AM, Gavin Groce via time-nuts <
> time-nuts at lists.febo.com> wrote:
> >
> > Hello,
> >
> >
> > I am looking for more information on the
> > Interstate Electronics LF610 labeled as a "60 KC Timing Receiver."
> >
> > I think it dates from the 1960s and have had mentions in the magazine at
> > World Radio History.
> >
> > It got leaked caps lucky nothing seems damaged.
> >
> > But the real draw for me was the National Bureau of Standards property
> tag
> > on the unit.
> >
> > I also have a Datum 9100 time code generator(with an 10mhz OCXO) that
> has a
> > front panel WWV input .
> >
> > So I am trying to get that reciver working as I think the 9100 might
> output
> > irig of some format but have not been able to sync it from a reliable
> > source yet.
> >
> > Gavin
> >
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