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 Post subject: Tuning head? Power supply? What is it??
PostPosted: Oct Fri 30, 2009 3:50 pm 
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Joined: Oct Sun 18, 2009 8:47 pm
Posts: 43
Location: Canmore Alberta Canada
I acquired this with my Hammarlund SP-210. It seems to me that this would be a power supply and a antenna tuner for some sort of transmitter, but in all honesty....I have no idea.
Is in two parts, as you see.
1) Power supply PS-3
2) Tuning head RF-3

Label on back says: Panoramic Radio Products Inc.

Cosmetically it isn't to bad I suppose but the innards have been scavenged.
Very heavy!

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 Post subject:
PostPosted: Oct Fri 30, 2009 5:04 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 2339
Location: Seattle WA US
What you have is the tuning unit portion of a Panoramic SPA-1 Spectrum Analyzer. Manufactured around 1955-60. The tuning unit included a General Radio unit oscillator and coaxial mixer, and the power supply for the analyzer display unit. The oscillator served as an LO to heterodyne the input spectrum down to the analyzer input frequency.

< I just uploaded a catalog entry on this device, to the Temp Gallery, but don't know how to link it to this post....>
--Chuck


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 Post subject:
PostPosted: Oct Fri 30, 2009 7:21 pm 
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Joined: Oct Sun 18, 2009 8:47 pm
Posts: 43
Location: Canmore Alberta Canada
N7RHU wrote:
What you have is the tuning unit portion of a Panoramic SPA-1 Spectrum Analyzer. Manufactured around 1955-60. The tuning unit included a General Radio unit oscillator and coaxial mixer, and the power supply for the analyzer display unit. The oscillator served as an LO to heterodyne the input spectrum down to the analyzer input frequency.

< I just uploaded a catalog entry on this device, to the Temp Gallery, but don't know how to link it to this post....>
--Chuck


I will have no use for this thing. If I don't hear otherwise I shall scavenge for parts and unload the thing.


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 Post subject:
PostPosted: Oct Fri 30, 2009 7:51 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 2670
Location: Monterey California USA
It looks like someone already beat you to it in that regard...

_________________
WB6NVH


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 Post subject:
PostPosted: Oct Fri 30, 2009 8:31 pm 
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Joined: Oct Sun 18, 2009 8:47 pm
Posts: 43
Location: Canmore Alberta Canada
Geoff Fors wrote:
It looks like someone already beat you to it in that regard...


Yeah, it's about as bad as you get. But I thought I'd present the thing here just in case someone told me that; WOW! You have the Stradivarius of ugly gray boxes.

I think it is junk, but I'll get a nice meter and some knobs etc.


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 Post subject:
PostPosted: Oct Fri 30, 2009 10:01 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 2339
Location: Seattle WA US
That cylindrical gray unit in the center is a complete signal generator, less power supply. Look up "unit oscillators" in an old GR catalog. Suggest you salvage it as a unit, rather than part it out.

--Chuck


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 Post subject:
PostPosted: Oct Fri 30, 2009 10:12 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 6348
Location: Freeport, LI, New York 11520
I think I have something very similar to that unit....I'll have to dig it out of the barn.
Pictures on their way....

_________________
"Resistance may be futile but capacitance has potential"


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 Post subject:
PostPosted: Oct Fri 30, 2009 10:18 pm 
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Joined: Oct Sun 18, 2009 8:47 pm
Posts: 43
Location: Canmore Alberta Canada
N7RHU wrote:
That cylindrical gray unit in the center is a complete signal generator, less power supply. Look up "unit oscillators" in an old GR catalog. Suggest you salvage it as a unit, rather than part it out.

--Chuck


Hi Chuck,
Have you ever been inside one of these things?
Paul


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 Post subject:
PostPosted: Oct Sat 31, 2009 2:55 am 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 2339
Location: Seattle WA US
No, I haven't been inside one of the GR oscillators. Their stuff tends to be mechanically neat. Many used "butterfly" capacitors which combined the L and C for a UHF resonant circuit into a single physical structure. My 1970 GR catalog shows later equipment....look for a catalog from around 1957.

--Chuck


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 Post subject:
PostPosted: Oct Sat 31, 2009 12:40 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 1641
Location: On the Left Coast
Chuck,
Here's your catalog entry from the temp gallery.

John

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