This link worked for me: http://www.tubebooks.org/Books/hpc.pdf
Engineering is the art of making what you want from what you can get at a
profit.
I like Polywell Fusion.
On Monday, December 27, 2021, 03:28:54 AM UTC, Jeff Zambory
wrote:
It worked for me. It just took a while to
In my case it immediately went to a error 404 message.
But I found it. Here I will once again give a shot at uploading it.
Handbook of Piezoelectric Crystals for Radio Equipment Designers
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Handbook of Piezoelectric Crystals for Radio Equipment Designers
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'https://worldradiohistory.com/BOOKSHELF-ARH/Tube-Technology/Handbook-of-Piezoelectric-Crystals-John-P-Buchanan-1956-(701-pages).pdf'
The cut and paste broke the link. Try this one.
-Original Message-
From: Bob Albert via time-nuts
To: time-nuts@lists.febo.com ; gandal...@aol.com
C
It worked for me. It just took a while to load a 701 page PDF.
Sent from my iPad
> On Dec 26, 2021, at 7:06 PM, Bob Albert via time-nuts
> wrote:
>
> Link doesn't work.
>
___
time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe se
On 12/26/2021 6:05 PM, Bob Albert via time-nuts wrote:
Link doesn't work.
https://worldradiohistory.com/BOOKSHELF-ARH/Tube-Technology/Handbook-of-Piezoelectric-Crystals-John-P-Buchanan-1956-(701-pages).pdf
worked for me, all 700 odd pages of it. Thanks Nigel, and Happy Hogmanay,
Dan
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I found this:
Handbook of Piezoelectric Crystals for Radio Equipment Designers
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Handbook of Piezoelectric Crystals for Radio Equipment Designers
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On Sunday, December 26, 2021, 06:05:52 PM PST, Bob Albert via time-nuts
wrote:
Link doesn
Link doesn't work.
On Sunday, December 26, 2021, 05:41:01 PM PST, Nigel gm8pzr via time-nuts
wrote:
For those interested in the historical aspects, mid 50s in this instance, of
crystals and crystal oscillators in radio equipment...
https://worldradiohistory.com/BOOKSHELF-ARH/Tube-Techn
Hi
Selling well only works if you are making money on each one :)
The 8607 is / was a “select the best” design. If one in a hundred
meets that spec and you can’t sell the rest … h …..
Move the 8607 price up to $200,000 and they probably don’t
sell very well.
Bob
> On Dec 26, 2021, at 5
For those interested in the historical aspects, mid 50s in this instance, of
crystals and crystal oscillators in radio equipment...
https://worldradiohistory.com/BOOKSHELF-ARH/Tube-Technology/Handbook-of-Piezoelectric-Crystals-John-P-Buchanan-1956-(701-pages).pdf
Even a few of them there 3 legged
On 12/26/2021 10:42 AM, Tom Van Baak wrote:
The correct link is:
https://febo.com/pipermail/time-nuts_lists.febo.com/2012-September/053009.html
/tvb
I think what I said here is self explanatory.
The loop amplifier or its resistors have noise that corrupts the AFC
loop. Or else the lo
On Sun, 26 Dec 2021 15:54:06 -0500
Bob kb8tq wrote:
> The market is what dictates how fancy an OCXO gets made. Bottom
> line is that there really isn’t that big a market (and willingness to pay
> for super duper TC). If indeed you could do all the fancy stuff and
> still keep the sell price bel
Hi
The market is what dictates how fancy an OCXO gets made. Bottom
line is that there really isn’t that big a market (and willingness to pay
for super duper TC). If indeed you could do all the fancy stuff and
still keep the sell price below $10 then who knows ….
Bob
> On Dec 26, 2021, at 1:39
Attila,
> Why do have OCXO a Vref output in the first place?
The purpose of Vref is to optionally allow the oscillator to be
fine-tuned using 3 wires to an external user-supplied multi-turn pot,
often hiding behind an access hole at the rear of the instrument.
Note that the internal Vref nee
ESE has personal computer (PC) software (Windows) for configuring various ESE
products, using serial communications (RS-232 or USB).
The ES-192U has a serial connector (DB-9R) on its Rear Panel.
i have used USB-RS232 Bridge cables with Win10 computers w/o RS-232 ports.
https://www.ese-web.com/sof
The correct link is:
https://febo.com/pipermail/time-nuts_lists.febo.com/2012-September/053009.html
/tvb
On 12/26/2021 10:07 AM, Stewart Cobb wrote:
Rick,
I think this was the comment I was referring to:
https://lists.febo.com/empathy/thread/
Which says:
"... the phase noise is not as goo
Hello to all members.
And also remember that properly applied, a Zener diode can be a very
good reference. This might be more in the Volt--Nuts class, but the
Solartron 7081 8.5 digit DVM uses a TC Zener as a voltage reference. Of
course it is a selected Zener with a carefully controlled bia
I forgot to mention that the TCZD regulators are affected by the power
supply too, depending on the rest of the circuit. I think they typically
had a two-stage deal, with a regular Zener to make a higher voltage, and
provide a fairly stable supply to operate the reference regulator, but
of cour
Rick,
I think this was the comment I was referring to:
https://lists.febo.com/empathy/thread/SAGAOXBTK47QABBXZIUWFZ65TS76QZTA?hash=F5ONUQ552CLJ4G67XSYGV7JYBIOHMSPA#F5ONUQ552CLJ4G67XSYGV7JYBIOHMSPA
Which says:
"... the phase noise is not as good as a
10811 due to broadband noise in the automatic
Hi
The TC of the E1938 as reported in Rick’s papers is way past what
a “normal” single oven will do (like by several orders of magnitude).
Bob
> On Dec 26, 2021, at 12:51 PM, Attila Kinali wrote:
>
> On Sun, 26 Dec 2021 12:40:52 -0500
> Bob kb8tq wrote:
>
>> There are not many single oven de
On Sun, 26 Dec 2021 12:40:52 -0500
Bob kb8tq wrote:
> There are not many single oven designs out there that achieve
> the stability of the E1938. Of the designs I’m aware of, all use
> a “correction signal” to get there. Double ovens are a totally
> different beast …..
Hmmm.. So you are saying
Andy wrote:
"... I too was surprised to see nothing more than a Zener being used in
one case, but bearing in mind this was in a temperature controlled
environment is not as bad as a Zener in open air."
In the OCXOs I've had opened up, they used a temperature compensated
Zener, typically in th
Hi
There are not many single oven designs out there that achieve
the stability of the E1938. Of the designs I’m aware of, all use
a “correction signal” to get there. Double ovens are a totally
different beast …..
Bob
> On Dec 26, 2021, at 12:14 PM, Attila Kinali wrote:
>
> Hoi Rick!
>
> On S
Hoi Rick!
On Sun, 26 Dec 2021 08:36:06 -0800
"Richard (Rick) Karlquist" wrote:
> The E1938A has both an ALC loop (common in many oscillators) plus an AFC
> loop, which is exclusive to the patented bridge stabilized circuit. I
> am thinking that maybe the AFC circuit was causing the hump. That
Hi
Working at Motorola at the time and seeing just how much trouble they
had turning into a “software based” company, there were indeed issues
on the supplier end. The got there eventually, but it took quite a while.
Bob
> On Dec 26, 2021, at 2:47 AM, Poul-Henning Kamp wrote:
>
>
> A
Hi
I think the comment was in reference to the 10811 rather than the E1938A.
I suspect it was targeted at the output buffer.
Bob
> On Dec 25, 2021, at 11:56 PM, Richard (Rick) Karlquist
> wrote:
>
> I'm sure I said that ... a long time ago. I can't remember now what the fix
> was, but I a
The E1938A has both an ALC loop (common in many oscillators) plus an AFC
loop, which is exclusive to the patented bridge stabilized circuit. I
am thinking that maybe the AFC circuit was causing the hump. That
theory could be verified by disabling the AFC and seeing if the hump
goes away. The A
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