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- Newsgroups: ba.market.misc
- Path: sparky!uunet!spool.mu.edu!agate!ames!decwrl!src.dec.com!src.dec.com!jcollias
- From: jcollias@src.dec.com (Jim Collias)
- Subject: For Sale: Optec SSP-3 Stellar Photometer
- Message-ID: <1993Jan21.195734.21416@src.dec.com>
- Sender: news@src.dec.com (News)
- Organization: DEC Systems Research Center
- Date: Thu, 21 Jan 93 19:57:34 GMT
- Lines: 45
-
-
- Attention Amateur and Professional Astronomers!
-
-
- Optec Model SSP-3 Solid-State Stellar Photometer FOR SALE
-
- Includes complete set of Optec Johnson UBVRI 2-position filter sliders
-
- Like-new condition. Has been unused and in box since 1989
-
- Asking $650 obo
-
- I will send or fax a hard copy of the complete technical manual and
- specifications to anyone who is seriously interested.
-
-
- Excerpt from the technical manual:
-
- "By using an ultra-sensitive solid-state detector and integrated digital
- electronics, Optec has designed a unique stellar photometer in a single small
- package. All the electronics including detector, electrometer amplifier,
- voltage-to-frequency conversion electronics, and digital display are contained
- in one easy-to-handle unit and powered by a rechargeable 9-volt NiCd battery.
- The model SSP-3 Stellar Photometer makes the concept of a "portable observatory"
- a reality. All that is needed to make accurate and meaningful measurements of
- variable stars is a telescope, chair, notebook, and the model SSP-3 photometer.
-
- "Unlike most photometers used in astronomy which employ a
- photomultiplier tube, the SSP-3 uses a silicon PIN-photodiode detector which
- allows detection from the UV to the near infrared with a single detector. Other
- advantages of the SSP-3 include: increased safety factor since only low voltages
- are used, freedom from damage when accidentally exposed to bright lights or
- rough handling, exceptional linearity over a 1,000,000/1 light range, and ease
- of use not usually found in this level of instrumentation.
-
- "As mentioned earlier, the SSP-3 photometer and a telescope are the only
- instruments needed for measurements of variable stars. However, to further
- extend the utility of this instrument, an external output is made available for
- interface to a remote counter or computer. Optional Optec accesories provide
- the user with a fully automated photometer system.
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