I am planning to Build 150W RMS per Channel (Dual Mono) , for my personal Quality Listening.
I have two Options
1) Parallel LM 3886 150W Amplifire X 2
2) Bipolar Transistor Amplifire Design i.e. TTC 5200/1943
just now I have
1) 4 Toroidal Transformer's 25VX1 (250 VA) 2 per channel.
2) 4 Bridge Rectifier's
3) 4 filter capacitors 33,000 ufd 63 Volts
4) Heavy Heatsinks (12"X5"X2") 2pc
Only decision have to take LM3886X3 parallel per channel or any Bipolar Transistor Circuit
which is better
or any another third option ?
I have two Options
1) Parallel LM 3886 150W Amplifire X 2
2) Bipolar Transistor Amplifire Design i.e. TTC 5200/1943
just now I have
1) 4 Toroidal Transformer's 25VX1 (250 VA) 2 per channel.
2) 4 Bridge Rectifier's
3) 4 filter capacitors 33,000 ufd 63 Volts
4) Heavy Heatsinks (12"X5"X2") 2pc
Only decision have to take LM3886X3 parallel per channel or any Bipolar Transistor Circuit
which is better
or any another third option ?
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A single bipolar transistor is unlikely to reach anything like the performance of a chip amp. Even a complementary pair hasn’t a hope. You’ll really be needing a decent number of transistors, and not all of them 5200/1943s. Little ones are just as important as the big ones. It also matters rather a lot how you connect them together.
For your project, in addition to microcircuits and transistors, you will need other parts in accordance with the selected circuit. Requires PCB. Chassis and box. Power supply transformer and electrolytic capacitors. Installation products - jacks, connectors, switches, etc.
You need certain skills in design, installation (soldering), adjustment , machining and mechanical assembly.
All together this is called DIY 🙂
You need certain skills in design, installation (soldering), adjustment , machining and mechanical assembly.
All together this is called DIY 🙂
Pushing the lowly LM3886 into 150W even in bridge mode requires very careful consideration of layout and speaker choice.
The chip amplifiers don't really need any adjustments before powering the amplifier and they have a lot of protections built in .
Did you ever build an amp before?
If not , I would just give the single lm3886 a shot, after that you could try the parallel/bridged .
Did you ever build an amp before?
If not , I would just give the single lm3886 a shot, after that you could try the parallel/bridged .
need a lot more info - you should define by sharing what means better to you so you'll get more useful responses.
what's your skill level?
150W RMS per channel (into 8 ohm loads, i assume?) will require more than building the circuit; you've got power supply, wiring, heat removal and other mechanical aspects that are critical for project success, too.
not trying to discourage, just pointing out other considerations to factor in to reduce risk and frustration as you try to progress ....
what's your skill level?
150W RMS per channel (into 8 ohm loads, i assume?) will require more than building the circuit; you've got power supply, wiring, heat removal and other mechanical aspects that are critical for project success, too.
not trying to discourage, just pointing out other considerations to factor in to reduce risk and frustration as you try to progress ....
Just how big is your listening area?
And your speaker selection matters too...
150 watts is deafeningly loud in a 600 square foot area.
So tell us what you intend to do... garden, cinema, concert hall, or what?
And if you are new to this, please buy second hand at a sale, or through a repair shop you will save money and learn to repair it too if needed.
Also look at Salcon and Monty in Delhi, see their Keltron capacitor kits, quite decent.
And you could try ex Rajneeshite stuff in Koregaon Park area.
And your speaker selection matters too...
150 watts is deafeningly loud in a 600 square foot area.
So tell us what you intend to do... garden, cinema, concert hall, or what?
And if you are new to this, please buy second hand at a sale, or through a repair shop you will save money and learn to repair it too if needed.
Also look at Salcon and Monty in Delhi, see their Keltron capacitor kits, quite decent.
And you could try ex Rajneeshite stuff in Koregaon Park area.
TDA 7293 and LM 49810/30 will give you about 100 watts per channel, and there are Mosfet kits available for higher power levels.
I use an old Philips AW666 Powerhouse, 20 or so Watts per channel, quite enough, 150 at flea market, good to go after a wash with liquid soap, and contact cleaning spray.
That is about 2 US Dollars...plays using my PC as a source.
I use an old Philips AW666 Powerhouse, 20 or so Watts per channel, quite enough, 150 at flea market, good to go after a wash with liquid soap, and contact cleaning spray.
That is about 2 US Dollars...plays using my PC as a source.
do not know the price either, no need for such room heater 🙂
one can get decent classD amp for fraction of the cost for sure
one can get decent classD amp for fraction of the cost for sure
I build Mono and Stereo Setup of LM3886 , TDA 7293 and TDA 7294 (in Bridge Mode)
but not build Parallel Config.
Thanks for your valuable suggestion ,
I have
1) 4 Toroidal Transformer's 25VX1 (250 VA) 2 per channel.
2) 4 Bridge Rectifier's
3) 4 filter capacitors 33,000 ufd 63 Volts
4) Heavy Heatsinks (12"X5"X2") 2pc
Only decision have to take LM3886X3 parallel per channel or any Bipolar Transistor Circuit
You will get + -35V supply voltage with no load. 3886 will give 50 watts into an 8 ohm load according to the datasheet. Parallel connection will not increase the power in the load. You will need a bridge connection and in each arm you need to connect 2 ICs in parallel for a total of 4 ICs per channel.
This also applies to BJT, especially Mosfet.
This also applies to BJT, especially Mosfet.