EAN-130000000072700   EAN-13 barcode 0000000072700
UPC-A000000072700   UPC-A barcode 000000072700
Product NameTcc Tc-754 Riaa Phono Preamp (Pre-Amp, Preamplifier) With Three Switchable Aux Inputs And Variable Output Level
CategoryElectronics / Photography
Amazon.comA Buy on Amazon ~ B0002JNAPQ
Width4 inches    (convert)
Height2 inches    (convert)
Length8 inches    (convert)
Weight30.4 ounces    (convert)
  • RIAA freq response 20hz-20,000hz +/- 0.5dB, S/N ratio 85dB
  • source indicator LEDs; power-off setting retention
  • 12 volt DC operation; will work anywhere in the world
  • ground wire terminal; power indicator and switch
  • includes AC adaptor, RCA cable and miniplug adaptor
Long DescriptionOur flagship model combines exceptional phono preamp performance with three additional aux level audio inputs, then adds an variable output level control. Soft-touch switches control power on/off and source selection. While off, the TC-754 even remembers what source was last selected and reselects it when powered back up. The output level control allows connection to a power amp either directly or through an equalizer; or it can simply be used to fine tune the audio level sent to your computer sound card or receiver. Spectacular RIAA equalization accuracy and a S/N ratio of 85dB make the TC-754 our best performing phono preamp; its additional features are extra icing on the cake! Now available in either BLACK ofr SILVER finish.
Created01-10-2012 1:14:32pm
Modified09-05-2018 6:00:44pm
Search Googleby EAN or by Title
Query Time0.0016301

This is a basic implementation of a service that provides retrieval access to the UPC web site. Its was coded to verify basic  proof-of-concept for development of another application and was not intended to provide be anything more than basic functionality in the retrieval  of UPC data from the web site.

There are several places where simple code was left in place rather than using more advanced Java features/methods to allow for easier  understanding of junior developers. Not much time spent refactoring or cleaning up the code. It is provided as a starting point only.

It contains a Factory service that returns a service object configured using the (see below) file found in the class path of  the executed code. The UpcQueryService can respond with an implementation of the UpcResponse and supporting interfaces or with an InputStream  allowing direct access to the response from the from the web site.

JSR 353 is the Java API for JSON is currently under development ( &  The several Java JSON implementations seemed to be more than I was wanting/needing so I wrote a basic parser to provide JSON parsing capability  needed. Its not perfect but is a good basic start.

Download the example source code

The must be configured.

Url (Required)
provides the address used to query UPC data. The additional parameters are added to retrieve the requested information.

ApiKeyCode (Required)
Provided from when your account is setup.

Mode (Required)
The manner in which the data will be retrieved from the web site.
AutoRetrieveGraphics (Optional)
Boolean to indicate whether the graphics, when indicated by a Url, are to be automatically retrieved at the same time with the UPC data. Default is false. A factory method allows for the this property to be overridden at the time the UpcQueryService is created.