I used TIP120 as microphone preamps and recorded over a hundred concerts and recitals with satisfaction.
Before I could ask The Internet!
It does help to know what you are doing.
The application can't be all that difficult to predict from the suggestions which look like fair, average and better types to use in the input, VAS and output stages respectively, of a medium power, generic type of class AB amplifier. If the OP wants to to play hide-and-seek or pin-the-tail-on-the-donkey with what the actual design is, then he/she will have to accept that we can only surmise and generalise with that optional listing of semis. In other words, just discuss some widely available semis that may suit basic, discrete component, class AB audio amplifiers.
How dumb is this? It's like giving a builder a list of materials without even a floor plan of your house or a location to build it
.
How dumb is this? It's like giving a builder a list of materials without even a floor plan of your house or a location to build it
.OP seems incoherent for whatever reason.
Those circuits are really old.
But without application, supply volts, watts needed....blindfolded, for no real reason.
Circuit designer?
Bovine excrement! Those devices are like 40 years old, been discussed and put away 25 years ago.
Milo Minderbinder or drunk giggly female is the image conjured by the posts.
Secretive, and thinking they invented the wheel.
Milo bought eggs for 6 cents, sold them for2 cents, and made a profit.
In the novel 'Catch-22', IIRC...
He was really making a profit, it is there in the book.
Such a nice name, Minderbinder. Or Mind Bender, a possible translation?
Those circuits are really old.
But without application, supply volts, watts needed....blindfolded, for no real reason.
Circuit designer?
Bovine excrement! Those devices are like 40 years old, been discussed and put away 25 years ago.
Milo Minderbinder or drunk giggly female is the image conjured by the posts.
Secretive, and thinking they invented the wheel.
Milo bought eggs for 6 cents, sold them for2 cents, and made a profit.
In the novel 'Catch-22', IIRC...
He was really making a profit, it is there in the book.
Such a nice name, Minderbinder. Or Mind Bender, a possible translation?
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I am a P G Wodehouse fan, also Tintin and Asterix comic series.
Some of the names in those, are, well, humorous to me.
Gussie Fink-Nottle, Medulla-Oblangata-Glutz (film studio), Unhygienix the fishmonger, Cacofonix the bard, Fullyautomatix the blacksmith, Professor Calculus...
Many more can be cited.
Some of the names in those, are, well, humorous to me.
Gussie Fink-Nottle, Medulla-Oblangata-Glutz (film studio), Unhygienix the fishmonger, Cacofonix the bard, Fullyautomatix the blacksmith, Professor Calculus...
Many more can be cited.
Ok here is the diagram. If its against board rules a mod may delete it.
Its not my design hence was not sure if could be posted. Dude trying to insult me. Why ?. I sent you the link. Where is the spirit of encouraging newcomers ?. To the hobby. I know there is a price to learn but seriously to insult others ?.What ever rocks your boat.
This is just a new hobby for me so do forgive the enthusiasm.
Its not my design hence was not sure if could be posted. Dude trying to insult me. Why ?. I sent you the link. Where is the spirit of encouraging newcomers ?. To the hobby. I know there is a price to learn but seriously to insult others ?.What ever rocks your boat.
This is just a new hobby for me so do forgive the enthusiasm.
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- Q1, Q2, Q5 - 2N5401 , MPSA92 , MPSA93
- Q3, Q4, Q6 - 2N5551 , MPSA42 , MPSA43
- Q7- BD140 , MJE350 , 2SA1220 , 2SA1381
- Q8, Q9- BD139 , MJE340 , 2SC2690 , 2SC3503
- Q10 - 2SC2073 , 2SC4793 , TIP41C , MJE15028-30-32
- Q11 - 2SA940 , 2SA1837 , TIP42C , MJE15029-31-33
- Q12, Q14 - 2SC5200 , TTC5200 , 2SC5200N , NJW0281G , TIP35C
- Q13, Q15 - 2SA1943 , TTA1943 , 2SA1943N , NJW0302G , TIP36C
Here is suggestion for complementary output pairs:
https://www.diyaudio.com/community/threads/output-bjts-for-buffer.386324/page-2
https://www.diyaudio.com/community/threads/output-bjts-for-buffer.386324/page-2
The domain name 'amphead.in' is available, so the site, if it existed, is closed for ever.
No need to worry about secrecy, and the circuit is an old one.
Parts look to be commonly available, so go ahead and build it.
Try Universal on the road from Town Hall to Victoria Hospital, in the electronics market.
Nice people, if they are still in business.
Lots of odd parts in stock.
No need to worry about secrecy, and the circuit is an old one.
Parts look to be commonly available, so go ahead and build it.
Try Universal on the road from Town Hall to Victoria Hospital, in the electronics market.
Nice people, if they are still in business.
Lots of odd parts in stock.
^^^^^^^^^^^ THAT.
It was publicly available for anybody all the time, no reason for all the cloak and dagger mystery.
https://dictionary.cambridge.org/dictionary/english/cloak-and-dagger
It was publicly available for anybody all the time, no reason for all the cloak and dagger mystery.
https://dictionary.cambridge.org/dictionary/english/cloak-and-dagger
https://vaspelectronics.com/200w-hifi-mono-amplifier
Assembled PCB 599.00
PCB + parts 549.00
Only PCB 139.00
All prices in Indian Rupees.
Mono, so you need two for stereo.
Buy assembled and use it. Assembly and testing charge is INR 50, so worth it, no trips to find parts in market.
He will charge you double the market price from Delhi, and no heat sink.
And if he is using fake / non existent domain name 'amphead.in', I do not feel he is trust worthy.
And he is not a circuit designer at all, this is old enough to be called generic.
You seem incoherent, do try and be careful.
Alternates may be sold as assembled PCBs in City market area, ask for Mosfet PCB.
Also:
https://www.salconelectronics.com/product/4-mosfet-power-stereo/
This is STEREO, and believe me, quite loud for most home use, at less than 600 Rupees!
This is a common item here, at least three suppliers I know of in Delhi are selling on line.
This is like pizza or sandwich item in electronics market!
Vasp is in Bhopal.
Ask for heat sink, that is another sticking point, sometimes difficult to get.
Amount is like $8, for this you are worried?
You can get ready Mosfet stereo amp, starting at about 4000 Rupees ($55), with FM module, transformer, cabinet, pots, and all the other bits that go in, like heat sink, speaker connectors, wires, switches, the bill of materials is long.
If your skills are poor, go for that, don't waste your energy.
Assembled PCB 599.00
PCB + parts 549.00
Only PCB 139.00
All prices in Indian Rupees.
Mono, so you need two for stereo.
Buy assembled and use it. Assembly and testing charge is INR 50, so worth it, no trips to find parts in market.
He will charge you double the market price from Delhi, and no heat sink.
And if he is using fake / non existent domain name 'amphead.in', I do not feel he is trust worthy.
And he is not a circuit designer at all, this is old enough to be called generic.
You seem incoherent, do try and be careful.
Alternates may be sold as assembled PCBs in City market area, ask for Mosfet PCB.
Also:
https://www.salconelectronics.com/product/4-mosfet-power-stereo/
This is STEREO, and believe me, quite loud for most home use, at less than 600 Rupees!
This is a common item here, at least three suppliers I know of in Delhi are selling on line.
This is like pizza or sandwich item in electronics market!
Vasp is in Bhopal.
Ask for heat sink, that is another sticking point, sometimes difficult to get.
Amount is like $8, for this you are worried?
You can get ready Mosfet stereo amp, starting at about 4000 Rupees ($55), with FM module, transformer, cabinet, pots, and all the other bits that go in, like heat sink, speaker connectors, wires, switches, the bill of materials is long.
If your skills are poor, go for that, don't waste your energy.
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