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

[John Franke]

I would pay $250, via PayPal, including shipping, if you would ship the pile. If not, I would understand. I figured I had to at least give it a shot.

John Franke   WA4WDL
4500 Ibis Ct
Portsmouth, VA 23703


> On February 6, 2021 at 10:34 PM Martin VE3OAT <ve3oat at storm.ca> wrote:
> 
> 
> 
> 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
> 
> 
> 
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