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 Post subject: Home Made TR
PostPosted: Apr Mon 16, 2012 3:01 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 2755
Location: Gainesville, Florida
salvaged transistors make for easy AM receivers. same parts as one tube radio only transistors, solderless bread board and low voltage power source are different. although I have additional RF stage into diode detect then audio amplified using only a 9vdc source wall transformer for my first transistor AM radio. plug-n-play solderless bread board easy to experiment with different value components. combine different sections for different effects. anyone else ?

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 Post subject: Re: Home Made TR
PostPosted: Apr Tue 17, 2012 12:48 pm 
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Location: Gainesville, Florida
no transistor homebrewers in here ? segregation

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 Post subject: Re: Home Made TR
PostPosted: Apr Tue 17, 2012 1:01 pm 
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Location: Texas. USA
tubeAMP wrote:
no transistor homebrewers in here ? segregation
Well, I did a sand AM transmitter but like playing with tubes at the moment.


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 Post subject: Re: Home Made TR
PostPosted: Apr Thu 19, 2012 7:22 pm 
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Location: Gainesville, Florida
did a bunch of tube stuff for awhile. still do some. recently an RCA portable. couple tabletops. been getting into pocket transistor lately. built a breadboard two transistor radio. plug-n-play 9vdc source :shock:

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 Post subject: Re: Home Made TR
PostPosted: Apr Fri 20, 2012 12:58 am 
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Joined: Feb Sun 05, 2012 3:41 pm
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Location: Bristol, SW England
tubeAMP wrote:
no transistor homebrewers in here ? segregation



Yes sir, been playing with home made TRF recievers on and off since 1972, aged 10 :)

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 Post subject: Re: Home Made TR
PostPosted: Apr Sat 21, 2012 1:45 am 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 2755
Location: Gainesville, Florida
the category does say Homebrew Radios. should include transistor home made radios. dont see much other than tube radio and tube transmitters. nothing wrong with that. a little more variety would be an interesting addition. homebrew breadboards. ferrite antenna coil. hybrid. let it rip. its still component builds :shock:

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 Post subject: Re: Home Made TR
PostPosted: Apr Sat 21, 2012 3:19 am 
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Joined: Jan Sun 24, 2010 7:59 am
Posts: 6171
Location: Pro Tech, Philadelphia Pa.
I take old transistor stuff sometimes and repurpose it when I get an idea. and feel like firing up the power saw and stuff.

Chop-chop, spray some paint, bend some metal, cut some plexiglas.... and make a one of a kind job that sounds nice, and is functional.

For instance....
an old am/fm Realistic pocket portable - now a sharp red battery set for the bathroom shelf....
or a bunch of old stereo parts and some high compliance tv speakers to make a compact stereo FM set that blows the Bose Wave Radio out of the room.

Image
Image
Image
Image

IT'S ART! :wink:

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 Post subject: Re: Home Made TR
PostPosted: Apr Sat 21, 2012 11:12 am 
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Nice work RT !

John

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 Post subject: Re: Home Made TR
PostPosted: Apr Sat 21, 2012 10:19 pm 
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Location: Gainesville, Florida
art it is

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 Post subject: Re: Home Made TR
PostPosted: Apr Sat 21, 2012 10:24 pm 
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Location: SoCal, 91387
John Bartley wrote:
Nice work RT !

John

+1.

The dial on the red set looks like a compass.

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 Post subject: Re: Home Made TR
PostPosted: Apr Sat 21, 2012 10:57 pm 
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Location: Pro Tech, Philadelphia Pa.
fifties wrote:
John Bartley wrote:
Nice work RT !

John

+1.

The dial on the red set looks like a compass.


It DOES, doesn't it?

I hand made a pointer out of aluminum, (Dremel comes in handy) painted it red to match the case.
The dial is a hi-res photoshop print that I designed, and the gold bezel is from a clock-kit set from a crafts store.

here's a close-up.....

Image

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 Post subject: Re: Home Made TR
PostPosted: Apr Sun 22, 2012 12:11 am 
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You MADE that entire dial yourself?
I think you actually chose the wrong profession;

Being a counterfeiter could have been much more lucrative...




As long as you didn't get caught! :wink:

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 Post subject: Re: Home Made TR
PostPosted: Apr Sun 22, 2012 1:44 am 
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Joined: Jan Sun 24, 2010 7:59 am
Posts: 6171
Location: Pro Tech, Philadelphia Pa.
fifties wrote:
You MADE that entire dial yourself?
I think you actually chose the wrong profession;

Being a counterfeiter could have been much more lucrative...
As long as you didn't get caught! :wink:


Yes, I made the entire dial fities.

I am a stickler for details and fit/finish when I make something - people know about my handiwork.
That's one reason why people come to me, particularly if custom work is needed.
I do my best to make the impossible - possible. :wink:

Ya see, sometimes I have to craft things from scratch - some parts on old radios are impossible to find - ya gotta make them.
So I do much more than just "restoration" sometimes.

I'm sure there are other guys out there with the skills to do the same thing.
Like the one guy who makes reproduction Philco cathedral cabinets - very nice work indeed.

It's FUN! :wink:

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 Post subject: Re: Home Made TR
PostPosted: Apr Sun 22, 2012 12:55 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 2755
Location: Gainesville, Florida
amazing signal performance from graphite antennas. aids the compactness of pocket transistor receivers. I am thinking of building one fitting into a case of some sort like this one

Image

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