Hi
> On Oct 25, 2020, at 3:43 AM, Bernd Neubig wrote:
>
>
>
> Hi,
>
>> On Fri, 23 Oct 2020 19:32:16 -0400
>> Bob kb8tq wrote:
>> Those authors pretty much only focus on *oscillator* design. ( =
>> electronics).
>> Bottom is a “crystal guy”. He focuses pretty much only on how to chop up a
Hi,
> On Fri, 23 Oct 2020 19:32:16 -0400
> Bob kb8tq wrote:
>Those authors pretty much only focus on *oscillator* design. ( = electronics).
>Bottom is a “crystal guy”. He focuses pretty much only on how to chop up a
>chunk of quartz to get this or that result ( = frequency, temp coef, size, Q
Hi,
If I where able to do that with helping hands in a lab and get a few
crystals that actually work and produce oscillating oscillators, even if
the frequency and Q isn't anything near stellar, that would still have
value. It would be gained experience, but not really anyway near
production
On 10/24/20 3:14 PM, Bob kb8tq wrote:
After it’s sealed up (and possibly processed a bit after seal) you test it to
see how
you did. Some number will be ok, the rest head into the trash. The good ones go
into oscillators. Is that 5% or is that 80% … depends on what you are after ….
Bob
Hi
The gotcha is that if you want to *use* what’s in that book ( I have a copy and
went to the course back in the 1970’s) the first step is to grab a chunk of
quartz.
Next you head over to your X-ray setup and work out what you have. After that
you go over to the saw and chop some raw blanks.
Try Dave Henderson at Artek Manuals. He does the best job scanning things.
DaveD
> On Oct 24, 2020, at 15:12, Mike Feher wrote:
>
> This did not make it the first time because I had attached photos that were
> too large. I have an original copy of Don Firth's publication on "Quartz
> crystal
On Fri, Oct 23, 2020 at 10:55 PM Wes wrote:
> Not exactly the same book but the same author:
>
> "Introduction to quartz crystal unit design" There seems to be a copy in the
> UK
I see several copies of this in the $20 range on bookfinder.com,
click "view all matches combined" at the link
It may not be current, but IMHO it would not be a waste of time read it. If
one wants to extend the knowledge gained from reading the the book to include
more current theory I am sure that additional resources could be found.
DaveD
> On Oct 24, 2020, at 07:43, Attila Kinali wrote:
>
> On
Hi
> On Oct 24, 2020, at 7:43 AM, Attila Kinali wrote:
>
> On Fri, 23 Oct 2020 19:32:16 -0400
> Bob kb8tq wrote:
>
>> This book is an introduction to designing AT cut resonators. It came out
>> before the SC existed. It’s very much a “starter” book on the subject. He
>> would do a 1 to 3 day
There's a copy of Introduction to Quartz Crystal Unit Design by Virgil E
Bottom for sale on thriftbooks.com but it's available to "borrow" on
Archive.org and there are several copies of Theory and Design listed in
various US university libraries on worldcat.org perhaps a friendly faculty
member or
This did not make it the first time because I had attached photos that were
too large. I have an original copy of Don Firth's publication on "Quartz
crystal oscillator circuits design handbook". This was developed under a
government contract by the US Army. Don was a friend while I was at
Hi
>From what I can see, all are essentially editions of the same book, updated
as he continued to do his classes.
Bob
> On Oct 23, 2020, at 9:50 PM, Wes wrote:
>
> Attila,
>
> Amazon says (Out of print):
>
> * Publisher : McMurray Press; 1st Edition (January 1, 1968)
> * Language: :
On 10/23/20 6:50 PM, Wes wrote:
Attila,
Amazon says (Out of print):
* Publisher : McMurray Press; 1st Edition (January 1, 1968)
* Language: : English
* ASIN : B0007H97C8
Not exactly the same book but the same author:
"Introduction to quartz crystal unit design" There seems to be a
On Fri, 23 Oct 2020 19:32:16 -0400
Bob kb8tq wrote:
> This book is an introduction to designing AT cut resonators. It came out
> before the SC existed. It’s very much a “starter” book on the subject. He
> would do a 1 to 3 day training session and the book was a giveaway as
> part of those
Attila,
Amazon says (Out of print):
* Publisher : McMurray Press; 1st Edition (January 1, 1968)
* Language: : English
* ASIN : B0007H97C8
Not exactly the same book but the same author:
"Introduction to quartz crystal unit design" There seems to be a copy in the UK
Hi
> On Oct 23, 2020, at 5:11 PM, Attila Kinali wrote:
>
> Moin,
>
> I'm again hunting for some old stuff. Quite a few older papers,
> books and technotes (including an article by Bernd Neubig from 1978)
> reference V.Bottom's "The Theory and Design of Quartz Crystal Units"
> from 1974
This
Moin,
I'm again hunting for some old stuff. Quite a few older papers,
books and technotes (including an article by Bernd Neubig from 1978)
reference V.Bottom's "The Theory and Design of Quartz Crystal Units"
from 1974
Unfortunately, the internet does not seem to have that, neither
could I find
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