Comments on: AM receiver using ZN414

By: Fernando Parra

Fernando Parra — Wed, 21 Dec 2011 17:20:46 +0000

Estaría muy agradecido de ustedes si me hicieran el grande favor de informarme donde puedo conseguir en Colombia el Circuito Integrado: zn414z, quien lo distribuye, o en donde puedo encontrar esta informaciòn, ya que estoy interezado en este circuito.

De antemano mis agradecimientos

Atentamente, Fernando Parra

fdoparraz@gmail.com

By: FERNANDO PARRA ZAPATA

FERNANDO PARRA ZAPATA — Sun, 18 Dec 2011 20:19:26 +0000

Where can I get: Zn414z IC, in the republic of Colombia.
Thanks in advance to serve as the welcome given to my request.
Sincerely,
Fernando Parra Z.

By: Arman Sabciyan

Arman Sabciyan — Wed, 31 Aug 2011 20:59:57 +0000

Hello Again,
I do not know in which part of the world the home constructor is living.
Typing ZN414 radio or MK484 even TA7642 IC One can easily reach a source to buy two of above latter one’s via Google.Visiting my homepage and links list reflected on related pages above will direct You to a reliable eBay source that provides TA7642 at a very very reasonable cost.
Good Luck and Happy Experimenting.
Arman Sabciyan

By: admin

admin — Wed, 03 Aug 2011 14:19:00 +0000

Priyabrata Dash

At now we are not supplying components

By: Priyabrata Dash

Priyabrata Dash — Wed, 03 Aug 2011 13:44:27 +0000

I want to get the components from your company with the required Fees. Is it possible to supply me the component.

By: Arman Sabciyan

Arman Sabciyan — Sat, 18 Jun 2011 06:17:07 +0000

Hi,
Further to my explanations of yesterday. I have designed a similar circuit omitting the 270 Ohm Resistor( R3 )
You may visit my homepage for full details and information regarding the circuit.
Regards to All
Arman Sabciyan

By: Arman Sabciyan

Arman Sabciyan — Fri, 17 Jun 2011 07:53:36 +0000

Hi,
As already mentioned the receiver covers the AM/Medium Wave and LW Long Wave only.Although some try the Short Waves/SW possibly the 49 meter band.As the IC has a top working frequency of 3 MHz.Tha above or similar circuits will work fine with different number of turns according to the variable capacitor value.The coil can be prepared at home need not be any commercial coil preferably with Litz Wire or 30 SWG enamelled copper wire close wound 55 turns for a 365 pf variable capacitor length of ferrite bar/slab about 10 cms for a shorter bar/slab some turns more such as 60 to 65. The number of turns for a ferrite rod should be approximately the same for the same dimensions.One has to try to find the needed number of turns which is not a difficult task as home construction means experimenting.
For Long Wave the number of turns will be about 250 to 300
on a ferrite rod random wound need not be close wound.
If you happen to have a ferrite antenna coil both for LW and MW you can try the original variable capacitor value mentioned in the diagram.
Hope this helps.
Regards
Arman Sabciyan

By: bob

bob — Mon, 07 Feb 2011 04:39:45 +0000

is there a different material i could use besides ferrite, because i am having trouble finding a ferrite rod with those measurements.

By: Seetharaman

Seetharaman — Wed, 26 Jan 2011 16:33:37 +0000

L1 can be 90turns of 28 to 32 SWG wire on 3/8 inch dia ferrite rod of 6inches in length to cover MW frequencies.

By: Nick

Nick — Mon, 24 Jan 2011 20:19:05 +0000

Hi, i am building is circuit for my class, and i’m new to the whole world of circuits, but what kind of inductor should be used for the tank circuit in Henry’s?

thanks