[time-nuts] Some old Time & Frequency stuff for sale, eastern Ontario, Canada

[Martin VE3OAT]

Trying to down-size a bit and these must go, as I will probably never
use them again.  All units are rack-mountable.  Heavy stuff, only
local pick-up (in Greely, just south of Ottawa) or can meet within an
hour's drive of Ottawa.  Value $160, take it all home for $100!

1. and 2.  Two General Radio 1123-A digital synchronometers (clocks).
Displays time HH:MM:SS.  Requires input of 1 MHz or 100 kHz, sine or
square wave.  Can be synced by local clock pulse, with provision for
propagation delay.  One (black panel) was working fine when taken out
of service.  The other one (white panel) worked but did not reset at
23:59 (the old missing reset pulse problem).  I never found time to
fix it while the first one was working fine.  These units are typical
GR construction and work reliably, except that the display modules
are a bit of a pain to keep working due to recurring contact problems
(annual maintenance recommended).  With photocopy of the manual and
fold-out schematics in a binder.  And a box of spare bulbs for the
display modules.  Needs GR-type power cord.  $40 for the pair.

3.  Fluke 207-13 VLF Receiver/Phase Comparator.
* See Note.  Phase comparison receiver, tunes 8.0-31.9 and 60.0
kHz.  Local standard comparison input 100 kHz or 1 MHz.  Modified
antenna input circuit.  Was working fine when taken out of service,
and checked OK in recent "lash-up" test.  With bound photocopy of
manual with fold-out circuit diagrams, and a box of untested spare
circuit cards from a cannibalized Fluke 207.  $30.

4.  Spectracom 8164 NBS Receiver/Disciplined Oscillator.
* See Note.  A 60 kHz phase comparison receiver.  Local standard
input 0.1, 1.0, 5.0, or 10.0 MHz.  Modified to add 10 MHz, 100 kHz
and 1 Hz TTL outputs, and to remove 12VDC from 10 MHz sine wave
outputs (distribution amplifier) to remote sites.  Was working fine
when taken out of service when WWVB changed to phase modulation.
With original manual and diagrams.  $30.

5.  Kinemetrics/TrueTime 60-TF LF Receiver/Frequency Comparator.
* See Note.  Phase comparison receiver for 60 kHz, compact
construction (1.75-inch rack panel).  Local standard comparison input
1 MHz but might work with others.  Was working fine when taken out
of service, and checked OK in recent "lash-up" test.  Digital phase
display and strip chart recorder on front, analog voltage output on
rear.  Unfortunately, no manual or other documentation.  $20.

6.  Beckman Instruments 905 WWV Receiver.
HF AM receiver, all vacuum tubes, selectable channels 2.5, 5, 10, 15,
20, or 25 MHz, with fine tuning, audio filters, internal speaker,
S-meter, modified for AGC voltage output on the rear (BNC).  With
photocopy of the manual and schematic.  Working fine but power cord
should be replaced.  $20.

7.  Lavoie LA-800D WWV Frequency Comparator.
Compares local standard frequency (50 kHz to 10 MHz) with WWV on 5 or
15 MHz.  Vacuum tubes.  Scope trace is good but screen has small burn
mark (does not affect operation).  Tested with 1 and 10 MHz local
standards and seems to be working fine, except there is no derived 400
kHz standard output (not needed).  Probably needs alignment.  When fed
with a good local standard, it is fun to watch the phase changes on
WWV signal caused by propagation.  Big and heavy.  With 19" cabinet 
and photocopy of operation and service manual.  $20.

* NOTE -- The VLF receivers do not work by themselves with the new
WWVB signal format.  You must first de-phase-modulate the raw 60 kHz
WWVB signal to remove the PSK time code modulation before passing the
signal to the receiver's antenna input.  See the article at :
http://maxmcarter.com/rubidium/2012_mod/index.html for one solution.


Take all seven units for $100 cash.

73,
... Martin Potter   VE3OAT