Ah,
I do have the 2 resistors on the A15 - I do have the late model oven
controller so my ionizer shoud be DC correct?
Now the only problem which remains is the sourcing of a spare tube
- Scott
On Tue, Sep 30, 2008 at 2:58 PM, corby d dawson [EMAIL PROTECTED] wrote:
Scott,
I'm not sure how
You mentioned building a -3500 volt supply - why not use one of the
Ion pump supply units?
On Tue, Sep 30, 2008 at 3:14 PM, Scott McGrath [EMAIL PROTECTED] wrote:
Ah,
I do have the 2 resistors on the A15 - I do have the late model oven
controller so my ionizer shoud be DC correct?
Now
Test
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All,
Does anyone have the manual pages for the option H66 variant of the
5061A this unit has options 1-4 which include the high performance
beam tube,I have the 5061A manual for prefix 1740 but no data on
the h66 variant.
I dont recall but I believe I downloaded the manual from John's site
Symmetricom is a sales organization - tech support for non-contract
customers is iffy at best.We use symmetricom NTP servers some of
which have gone obsolete and the only support we get is calls from the
sales dept asking when are we going to replace them (we do have a
contract).
I really
I am having a problem with the 50 Mhz reference oscillator as it
generates a frequency of 47.5 to 49.995 Mhz depending upon setting of
R110. Q9 is dissipating excessive power and is hot to the touch
A9 collector bias is at 11.5 instead of the proper 11.0 and emitter
bias is at -.65V.base
with this stuff!
- Regards Scott
On Thu, Sep 11, 2008 at 10:50 AM, [EMAIL PROTECTED] wrote:
Scott,
Good luck on the rare 117A.
Did you get my e-mail with attachment containing the pages of the manual for
your updated unit?
Russ
-Original Message-
From: Scott McGrath [EMAIL
of the
GR Frequency Standard, I replaced a number of carbon resistors that had
changed value over time, most likely from abuse.
Enjoy! Let me know how I can assist.
Russ
-Original Message-
From: Scott McGrath [EMAIL PROTECTED]
To: [EMAIL PROTECTED]; time-nuts@febo.com
Sent: Thu
The interlinked cup hooks are a fuse or fusible link. there may be
others as EIA only standardized symbols in the late 60's and Mid 70's
Just look in older HP documentation and see how many symbols they
used for zener diodes!.
On Wed, Sep 10, 2008 at 1:12 PM, David C. Partridge
[EMAIL
All,
I purchased a 117A at a hamfest years ago and am just now looking into
it. This 117A is a bit different from the ones in the manual and
in pictures up on the web as it incorporates a telechron reduction
motor installed in fthe area in front of the TRF module harness
connector. Had
Tom,
Since everything is now UTC is it worth preserving this electric
offset system ?It would certainly be a neater package if the TRF
module actually fit within the case! My thoughts were to combine
this with a 105B
On Mon, Sep 8, 2008 at 4:45 PM, Tom Van Baak [EMAIL PROTECTED] wrote:
Hi,
Need a manual for a 5065A Prefix 1840A Rb frequency standard -
I have the preliminary manual but this does not cover the late version
with digital clock.I am in the process of digitizing the
preliminary manual and will make it available will probably upload to
ko4bb's manual site as well
Hi,
Name is Scott McGrath and I am a fellow time nut who in addition to
playing with precise timing also plays with clocks!.
My current collection of standards includes the following
HP 105B
HP 117A
HP 5061A
HP 5065A ( dead physics package unfortunately )
Austron 2100F (sold to me as a T
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