No it won't. The converters are complex devices that process a signal to convert from one form to another. Each device has a designated input and output and they will not operate in any other way.
Unfortunately VGA to HDMI cables are kind of a scam. The problem is VGA is an analog signal and HDMI is a digital signal. A cable is not capable of converting something from analog to digital or the other way around. In order to connect between a VGA and an HDMI connection you must use an active converter that will convert from one format to another. These converters are going to be considerably more expensive than just a cable, but they'll actually get the job done. These converters run between $60-$300+ depending on the capabilities of the converter.
VGA, a computer video output, cannot be converted to a composite (1 video wire) or component video (3 video wires) signal with just a cable. VGA can be much higher resolution than composite video. You will need a scan converter box to create the NTSC video signal.
SPDIF is a digital audio interface and is designed to transfer audio from one device to another without converting the signal to analog. Eventually, the signal will become analog as the speakers require an analog signal. to work. Almost all audio devices that have a SPDIF output also have an analog output so rather than buying a SPDIF to analog converter, use an existing analog output. If the device with the digital output doesn't have an analog output, then you don't have much choice about buying a converter unit. The converter is an active device so don't expect to find a simple converter cable. They don't cost a lot and they can be obtained from many specialist electronics stores. Good starting points are Radio Shack in the US or Maplin in the UK
It's not as simple as making a cable that fits. Digital audio cables and digital signals, both coaxial and optical, require a digital input. You need to convert the digital signal to analog to work with older receivers. These are available (Google Digital to Analog Converter or DA Converter). Just about every device that has a digital output will also have an analog stereo output, which will work with your old gear.
A 3.5 mm input is a line level signal, and a turntable has a phono level signal. You can connect these, but you will need a phono preamp to go in between the two. An RCA cable plugs into to the preamp from the turntable, and an RCA to 3.5mm cable connects the preamp to the stereo.
An DAC convert digital signal to analog signal i.e Digital to Analog Converter. An ADC convert analog signal to digital signal i.e Analog to Digital Converter.
When you convert digital signal to analog, it is called as an analog signal. The device used is called digital to analog converter.
There is a device called a digital to analog converter (DAC).
A media converter is used to help convert copper cable signal into fiber optic cable signal to be viewed on a variety of media devices. Some older devices actually require a media converter in order to view a signal.
A to D converter... same regardless of voltage
An analog-to-digital converter is a device which converts an infinite resolution analog signal to a finite resolution digital signal.
To convert a stereo unbalanced signal to a mono balanced signal, you can use a stereo to mono summing device or a mixer. Connect the left and right channels of the stereo signal to the summing device or mixer, and then connect the output to a balanced input device. This will combine the stereo signal into a mono signal and balance the audio for better quality.
The basic elements in digital signal processing are an analog to digital converter, digital signal processor, and digital to analog converter. This process can take an analog input signal, convert it to digital for processing and offer an analog output.
To convert an unbalanced stereo signal to a balanced mono signal, you can use a stereo to mono summing device or a DI box. Connect the unbalanced stereo signal to the device, which will combine the left and right channels into a single balanced mono signal.
To convert a SCART signal to an S-video signal, you can use a SCART to S-video adapter. This adapter will allow you to connect the SCART output to the S-video input, enabling you to view the signal on a device that accepts S-video input.
This converter is for audio only, not for a TV signal.
A VoIP converter that convert voice signal into digital signal with more ports than VoIP modem. This router can handle different VoIP channels.