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Changes & Mods

07/05/2014

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Sometime ago II had the chance to extend a power cable from my apartment to the garage. naturally thet brng the idea to make a small bench where I would be able to do works that I can't do at home. And so, the adventure begun...

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Then, from several scrap computers I've made one (working...), which you can see in the photos. lost amdst the junk!

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Phase two

Naturally...havng a computer would be nice to be able to look for info about some electronc components, unknown or not, appearing when disasembling some hardware, lookng for a schematic and son on.That giive brth to phase two: how to have internet 60+ meters away from my home (straight line)? Another cable? Hmmm...

Wireless! At 60 meters and no fabcy antennas? Yes.
An AP installed in the apartment laundry and an indoor antenna on an inorovised mast.It works!
Logically the next step implies changes. A new modification plan arised: create "sections". One for craftmanship (not that I'm good at...), an electronics section and a "IT" section, starting

Phase Three

In these pictures you can see the mess...Some new shelfs added, a small table for the computer (requesting an extension of the energy suplly to other side of the garage, and so on).In the first image you can see the second version of a loop antenna and the pvc pipes to build the mast to the wireless antenna, half mounted.
Phase four wil come in next days/weeks, because the spare time is lesser, every day,  had to go to Birmingham in work and mybeloved wife had to be submtted to an eye surgery. Maybe I'll be able to do something more before vacations n August...
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Experimental Loop Antenna - Version 001

03/23/2014

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Line filter

01/25/2014

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Line noise is huge at my place. Furthermore I have the laptop, net connections, router, and so on just on the side of the radios (lack of space...). Generally, couldn't hear anything below 9 MHz. This was the first step to solve - or attenuate - this situation. A line filter was added to the sockets on the radio side. You can see some images of the flter beeing assembled on an old cd drive box. Improvement was noted as can noted from 2 60mb recordings I'll put in the next post. Next step will be to add another filter to the sockets os the IT side and watch for better results (hopefully...)
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Telefunken TPR 401 X . II

01/20/2014

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Saved this Telefunken from the dumpster. And he works!! (Not very good...) Looking for manual and/or manual.
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Telefunken TPR 401 X

01/20/2014

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Receptores portáteis & outros

11/24/2013

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Estes são os portáteis integrados no schack, ao momento. Os pequenos rádios Chineses tem como objectivo vários ensaios e mods, nomeadamente alterações na FI, implementando saída para 10/12 kHz a fim de usar acoplado à placa de som do laptop.
O SW-77 e o Omega 4030 eram do meu irmão (CT0 353). Não funcionam, mas espero conseguir recuperá-los.
Se, por acaso, alguém tver - ou souber que tenha - um esquema ou manual do Ómega, seria ideal. Penso que não deve ser muito diferente de alguns modelos da Sangean ou similares, da mesma época (fim dos anos 80, princípio dos anos 90)
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