[R-390] Ramblings on Calibration - was: HP 8640B

[mikea]

On Thu, Apr 07, 2005 at 10:05:56PM -0500, John Schmitz wrote:
> Mike,
> That WWV receiver with built in scope wouldn't happen to be a General
> Microwave Model 550 WWV receiver would it? I have one and have been
> searching for years for info and schematic on it.

It's a Specific Products (Los Angeles California) Model WWVC, with
the following front-panel controls, display, and connectors: 

X gain pot
X short pushbutton
X-input binding post (3-way: Hi/Lo-Z, ground)
Freq switch (2.5/5/10/15/20 MHz)
Power toggle
RF gain pot
Limiter On/Off toggle
Intensity pot
Vertical pot
Vertical input binding posts (2)
mode switch (ticks/440/600/voice/compare)
focus pot
horiz pot
horiz input binding posts(2)
BFO on/off toggle
BFO freq pot
Tick level pot
Spkr vol pot
output pot
output binding post (3-2ay: hi/lo-Z, gnd)

The 3" (guesstimated) CRT sits dead center, Freq switch on the left, 
mode switch below the CRT, speaker symmetrically placed on the R to 
balance the Freq switch, which has a big aluminum skirt with the data
silk-screened on.

I suppose I need to get an image on my website. 

I think it's 4U high, rack-mount.

-- 
Mike Andrews, W5EGO
mikea at mikea.ath.cx
Tired old sysadmin