[time-nuts] WWV or Net Clock controlled oscillator

[Adrian Godwin]

Donald,

I'm interested to hear more about the Maas-Rowe controller. I presume
something that plays a fixed peal on the chimes ?

I found another You-tube video where someone was describing a set of
chimes, but it had a tube amplifier and a small manual keyboard. He didn't
describe any sort of automatic player, and from the age of the system I
would imagine it would have been semi-mechanical, like a player piano.


How does the controller you  are restoring operate ?


On Sun, Mar 4, 2018 at 11:11 PM, Tom Van Baak <tvb at leapsecond.com> wrote:

> Adrian, et al.
>
> An updated list of PIC dividers:
>     http://leapsecond.com/pic/picdiv-list.htm
>
> Source code and hex files:
>     http://leapsecond.com/pic/src/
>
> And, you guessed it, PD60 is the one that divides 10 MHz into 60 Hz
> (exactly). Documentation and source code:
>     http://leapsecond.com/pic/src/pd60.asm
>
> /tvb
>
> ----- Original Message -----
> From: "Adrian Godwin" <artgodwin at gmail.com>
> To: "Discussion of precise time and frequency measurement" <
> time-nuts at febo.com>
> Sent: Sunday, March 04, 2018 2:57 PM
> Subject: Re: [time-nuts] WWV or Net Clock controlled oscillator
>
>
> > There is indeed a 60Hz out picdiv from Tom Van Baak -
> > http://www.leapsecond.com/pic/picdiv.htm. It's not in that list but ask
> Tom.
> >
> > I've just used one (modified for 50Hz out) to drive a 1A H-bridge circuit
> > that supplies a 12V peak-peak square wave to an old LED clock, replacing
> > the original wall-wart.
> > It works very nicely, and is driven by the 10MHz output of a cheap
> surplus
> > GPSDO.
>
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