Folks,
I recently powered up an E1938 oscillator, and connected NGOComm to
examine its inner workings. The oven had been set to 75dC (fixed using
the ramp function), and I'd like to check all of the other settings in
case these have been changed as well.
Can anyone enlighten me? I'd like
List,
I was looking on Ebay for some HP E1938A
oscillators
What I found listed were:
HP E1938A 10 MHz Quartz Oscillator with EFC on PC
board. $100 Fluke.l
HP E1938-60201 Ovenized Crystal Oscillator (on a PC board) $100 Tomy Chou
HP E1938A Ovenized Crystal Oscillator W/O a PC board
Hi Perry,
On 07/05/2013 07:23 AM, Perry Sandeen wrote:
List,
I was looking on Ebay for some HP E1938A
oscillators
What I found listed were:
HP E1938A 10 MHz Quartz Oscillator with EFC on PC
board. $100 Fluke.l
HP E1938-60201 Ovenized Crystal Oscillator (on a PC board) $100 Tomy Chou
HP
Start by taking a look here:
http://www.leapsecond.com/museum/e1938a/
On Fri, Jul 5, 2013 at 7:23 AM, Perry Sandeen sandee...@yahoo.com wrote:
List,
I was looking on Ebay for some HP E1938A
oscillators
What I found listed were:
HP E1938A 10 MHz Quartz Oscillator with EFC on PC
board.
Magnus Danielson wrote:
Hi Perry,
On 07/05/2013 07:23 AM, Perry Sandeen wrote:
List,
I was looking on Ebay for some HP E1938A
oscillators
What I found listed were:
HP E1938A 10 MHz Quartz Oscillator with EFC on PC
board. $100 Fluke.l
HP E1938-60201 Ovenized Crystal Oscillator (on a PC
Perrier,
I think that I would take a well-working 10811 over the E1938A.
I've got a handful of both, one even came inside a Z3815A and all of the 10811
units are better than all of the 1938's for unknown reasons.
The 1938A is quite a bit more stable over temp in general though I think, but
On 7/5/2013 3:00 AM, Bruce Griffiths wrote:
Magnus Danielson wrote:
Hi Perry,
On 07/05/2013 07:23 AM, Perry Sandeen wrote:
List,
I was looking on Ebay for some HP E1938A
oscillators
What I found listed were:
HP E1938A 10 MHz Quartz Oscillator with EFC on PC
board. $100 Fluke.l
HP
Maybe the supporting board of the E1938A stores calibration constants...
On Fri, Jul 5, 2013 at 11:00 AM, Bruce Griffiths
bruce.griffi...@xtra.co.nz wrote:
Magnus Danielson wrote:
Hi Perry,
On 07/05/2013 07:23 AM, Perry Sandeen wrote:
List,
I was looking on Ebay for some HP E1938A
: [time-nuts] HP E1938A Oscillator
List,
I was looking on Ebay for some HP E1938A oscillators
What I found listed were:
HP E1938A 10 MHz Quartz Oscillator with EFC on PC board. $100 Fluke.l
HP E1938-60201 Ovenized Crystal Oscillator (on a PC board) $100 Tomy Chou
HP E1938A Ovenized Crystal
On 7/5/2013 12:23 AM, Perry Sandeen wrote:
List,
I was looking on Ebay for some HP E1938A
oscillators
What I found listed were:
HP E1938A 10 MHz Quartz Oscillator with EFC on PC
board. $100 Fluke.l
HP E1938-60201 Ovenized Crystal Oscillator (on a PC board) $100 Tomy Chou
HP
/ KE9H
Sent: Friday, 5 July 2013 11:05 PM
To: time-nuts@febo.com
Subject: Re: [time-nuts] HP E1938A Oscillator
On 7/5/2013 12:23 AM, Perry Sandeen wrote:
List,
I was looking on Ebay for some HP E1938A oscillators
What I found listed were:
HP E1938A 10 MHz Quartz Oscillator with EFC
Graham,
the answer is here:
http://www.prc68.com/I/HPE1938.shtml
I strongly recommend to read Rick's publications.
And, there is a control software for changing control parameters etc.
The other link which has been posted before:
http://www.leapsecond.com/museum/e1938a/
It includes a connector
There is a control program:
http://www.prc68.com/I/pdf/NGOcomm.zip
on the E1938A page at:
http://www.prc68.com/I/HPE1938.shtml
On Fri, Jul 5, 2013 at 3:05 PM, Graham / KE9H time...@austin.rr.com wrote:
On 7/5/2013 12:23 AM, Perry Sandeen wrote:
List,
I was looking on Ebay for some HP
Hi Bruce,
On 07/05/2013 11:00 AM, Bruce Griffiths wrote:
However the pucks can be a useful replacement when an E1938A oscillator
fails as one of mine did.
Indeed. But seeing them both rated at 100 USD, I rather recommending
buying the full E1938A than just the puck by itself.
Cheers,
14 matches
Mail list logo
