DCF77 is a German longwave time signal and standard-frequency radio station.
https://en.m.wikipedia.org/wiki/DCF77
There are commercial receivers and readers for DCF77,
but this DIY project by Erik Deruiter from the Netherlands
using the Arduino MEGA from 2016 was unique.
https://youtu.be/ZadSU_D
> Dear Enrico:
>
> Let me be the first to congratulate you on winning the 2018 Cady Award “For
> ground-breaking contributions to noise analysis and signal-source theory, and
> experimental achievements in the electronic and photonic domains.” I hope
> you will be able to join us at the 201
On Tue, Feb 20, 2018 at 2:30 AM, Poul-Henning Kamp
wrote:
> If that is the case, I think it will make sense to give the lamp
> its own adjustable voltage regulator (LM317), so the power can be
> reduced to what is optimal/necessary without having to take the
> lamp apart and change a resistor.
>
Corby no intent to rework the bulb.
Its just I have had good success with bulbs from the FE- series when
they fail to operate by heating the bulb to re-vaporize the "Stuff" that
plates out. Wasn't sure if this would be an approach on the 5065 when that
day comes for mine.
Regards
Paul
WB8TSL
O
Paul,
You do NOT want to take one apart to this level!
It's never going to operate again.
If you look at the lamp in the PIX you will see a white coil wrapped
around the bulb.
This is the tank for the 90Mhz drive and it sits cocked at a 45 degree
angle.
The lamp assy can be removed easily via
Corby
Really appreciate the pix.
Curious. How hard was it to open the oven up and then is it equally
reasonable to re-assemble it.
I will guess its reasonable since you insert the filter into the system.
Really curious do you see the bulb darken as if the RB is plating out?
Thats what I see on olde
Its RF and mag loop.
On Tue, Feb 20, 2018 at 8:49 AM, Dana Whitlow wrote:
> I'm curious:
>
> Is the lamp RF-excited, or by DC going to internal electrodes?
>
> And if by RF, is the energy coupled in magnetically by a loop,
> or by capacitive electrodes?
>
> Thanks,
>
> Dana
>
>
>
>
> On Mon, Feb
I'm curious:
Is the lamp RF-excited, or by DC going to internal electrodes?
And if by RF, is the energy coupled in magnetically by a loop,
or by capacitive electrodes?
Thanks,
Dana
On Mon, Feb 19, 2018 at 7:08 PM, wrote:
> Here is a PIX of the optical unit from a 5065A totally removed fro
Walter pure speculation.
Maybe the 100 MHz is superposed to be locked to the 10 MHz.
With a scope see what the drift rates are between the two.
Adjust EFC slowly to get the 100 MHz to go below the 10 MHZ if its running
fast.
See if the light changes to green.
If it does you know that the system is
Should have carefully read Corby's comment.
Lamps left.
On Tue, Feb 20, 2018 at 9:40 AM, paul swed wrote:
> Wow on the right, is that the lamp?
> Thats one large lamp to light. I am use to the little capsules about the
> size of a pr-1 light bulb.
> This is a keeper picture.
> Regards
> Paul
> W
Wow on the right, is that the lamp?
Thats one large lamp to light. I am use to the little capsules about the
size of a pr-1 light bulb.
This is a keeper picture.
Regards
Paul
WB8TSL
On Tue, Feb 20, 2018 at 8:24 AM, Bob kb8tq wrote:
> Hi
>
> Indeed very cool pictures.
>
> If the lamp is like most
Hi
Indeed very cool pictures.
If the lamp is like most gas bulb lights, there is indeed a “strike voltage”
required
to get things going (or an RF excitation). There inevitably is some temperature
dependence as well. A constant current driver might be the better bet.
Bob
> On Feb 20, 2018, at
Hi
If it works like the unit that replaced it, it has a level detect on the
external
input that rejects signals below some threshold. It either locks up to the
internal
standard or to the external input. All of the outputs are in the 7 to 13 dim
range
when operating.
The fault circuit looks a
In message , cdel...@juno.com writes:
>Here is a PIX of the optical unit from a 5065A totally removed from the
>shield assembly.
Nice!
>Left to right:
>
>Lamp assy
>lamp oven cylinder
>lamp reflector/convection block/diffuser
>Rb85 filter cell
It looks like there is a square filter of
There was one listed over on that auction site, it said best offer, so I made a
low offer and it was accepted !!
Guess my offer was too high !!
Anyway, it has the Red Fault Light on, so it has issues too.
If anyone finds any info on it, I would appreciate getting it. If I find out
anything a
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