[bnics]

Hi Members,

We have started a new online store for Audio DIYers in India. Initial products are TDA7293, LME49810, IRFP240, IRFP9240, NE5532 and more. We offer competitive prices and fast shipping for all items. Check http://bnics.com for more info.

Feel free to write to us for feedback and your requirements.

While this store is meant primarily for Indian market, we'll be offering worldwide shipping as well as our product portfolio grows.

Happy DIYing.
BNICS

[rajesh]

I doubt if there are India based members in significant numbers on this forum. You may be better off posting in India centric forums.

[bnics]

Most likely, yes. We wish to post in other forums as well. Could you kindly send a private message with pointers to India centric forums?

Thanks.

[bnics]

We have several updates, including new products and product photos. Do check out our website http://bnics.com
Thanks.

[bnics]

We are now selling 30-0-30V, 200VA toroidal transformers. For more information check http://bnics.com/osc1/product_info.php/products_id/66

Thanks

[bnics]

We have released a Power supply PCB suitable for power amplifiers.

[bnics]

We have released a power supply macro block.
Specifications are as follows
Unregulated DC power supply for use with a power amplifier.
Input: 230V AC
Output: +,-39V DC and a +5.1V reference voltage
Rated output current: +,- 2.5A
Output voltage at rated current: +39V, -39V.
Output AC rms ripple between V+ and GND at rated current: 0.47V
Percentage ripple at rated current: 1.2%
Output power at rated current: 195W
All components are pre-soldered.
Cost: Rs. 1999/-.

[rajesh]

Sounds good. What is the 5.1 V ref voltage for?

[bnics]

For interfacing to standby and mute controls on amplifier macroblocks. We are architecting these macroblocks so that an integrated amplifier can be built just by connecting them in a simple 1 hour soldering and screwdriver job. We haven't documented full features of our macroblock architecture yet . Do keep checking our website for more information.

The TDA7293 datasheert provides information on how to use it. It requires a 5V reference, which works with our 5.1V ref.

[bnics]

We received our first version of amplifier PCBs. Did you find these pictures familiar? This is the layout ST Micro Electronics has given in the datasheet for their remarkable TDA7293 chip. We are in the process of testing our first amplifier macroblock. We have set a target of matching specifications of the chip when testing it. So you can expect our macroblock to have the low level of harmonic distortion shown in TDA7293 datasheet.

We have a strong commitment to quality and believe that DIY amplifiers should be as good as commercial offerings. We shall be doing several tests: distortion, noise, load, power dissipation, frequency response and more. Rest assured that our amplifier macroblock will not just drive home audio speakers, but make them rock.

Do keep checking our website for more information as we make progress in our product development. Thanks for your interest. Happy DIYing.

BNICS team

[bnics]

We are happy to release an assembled power supply PCB.
Input voltage: Upto 126VAC (63V+63V) peak to peak (That's 89VAC rms).
DC Output voltage: Depends on input voltage and load.
A of 5.1V reference voltage is provided.
Minimum input voltage: 10VAC rms (5V + 5V).
Rated output current: 500mA DC.
Ripple at rated output current: 0.5Vrms.
Requires a step down transformer with appropriate output voltage and load rating.
Components are pre-soldered.

Output current options: 1A, 1.5A, 2A, 2.5A.

For more information check Assembled Power Supply, BNICS

[bnics]

We are happy to release TDA7293 PCB as a standalone product, with components and as an assembled amplifier module.
Specifications for assembled TDA7293 amplifier module are as follows:
Supply voltage: from +-20V to +-60V unloaded and from +-20V to +-50V with load.
Gain: 30dB.
Input: AC coupled.
Each PCB is assembled with all precautions and tested for absence of spurious oscillations.
Amplification is validated for a 1kOhm resistive load.
Damping factor for an 8Ohm load: 160

[bnics]

We are happy start selling LM1036, stereo volume control IC. Salient features
Dual DC Operated Tone/Volume/Balance Circuit
The LM1036 is a DC controlled tone (bass/treble), volume and balance circuit for stereo applications in car radio, TV and audio systems. An additional control input allows loudness compensation to be simply effected. Four control inputs provide control of the bass, treble, balance and volume functions through application of DC voltages from a remote control system or, alternatively, from four potentiometers which may be biased from a zener regulated supply provided on the circuit. Each tone response is defined by a single capacitor chosen to give the desired characteristic.
For more information, refer to BNICS LM1036 page.