Attila,
The Child and oven windings were destroyed pulling the oven cylinders out
of the potting.
I suppose you could replicate them and try to repot but I'm never going
to try!
Cheers,
Corby
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On Wed, 21 Feb 2018 15:37:53 +
"Poul-Henning Kamp" wrote:
> I was talking about driving the single-transistor UHF generator which
> ionizes the Rb in the lamp, so far I have not even established if
> this voltage affects the HP5065 performance in the first place.
Oops... sorry, I missed that
In message <20180221163511.b8d6eec26415fe16e66e4...@kinali.ch>, Attila Kinali w
rites:
>On Tue, 20 Feb 2018 09:36:49 -0700
>Mark Goldberg wrote:
>
>> I don't know anything about these devices, but for TCXOs, the power supply
>> noise significantly affects the phase noise of the output. An
WRT Rb on the envelope, the 5065A has a built in 'cold trap' to recover the Rb
into the reservoir, Instructions on use are in the manual
Content by Scott
Typos by Siri
On Feb 21, 2018, at 10:33 AM, Attila Kinali wrote:
On Tue, 20 Feb 2018 10:03:20 -0800
wrote:
> You do NOT want to take on
On Tue, 20 Feb 2018 09:36:49 -0700
Mark Goldberg wrote:
> I don't know anything about these devices, but for TCXOs, the power supply
> noise significantly affects the phase noise of the output. An LM317 is not
> well specified for noise and I expect is is orders of magnitude worse than
> somethin
On Tue, 20 Feb 2018 10:03:20 -0800
wrote:
> You do NOT want to take one apart to this level!
>
> It's never going to operate again.
Why not? Is there something you had to break to open it up this far?
Attila Kinali
--
It is upon moral qualities that a society is ultima
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
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
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
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