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Antenna plug for Beomasters

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valve1
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valve1 Posted: Thu, Dec 6 2012 9:35 AM

I am looking for an original 240-300 Ohm antenna plug for my classic Beolab 5000. This plug was used for a lot of the Beomasters of that era.

Otherwise I am open to suggestions.

valve1
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valve1 replied on Sat, Dec 8 2012 9:37 AM

Come on Beoworlders, how are you connecting your classic Beomasters to co-ax cable ?

tournedos
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Along these lines I'm afraid Embarrassed 

The correct plug is called DIN 45316 and is quite hard to find elsewhere than in junk box assortments. I have one in an original FM whisker set and the remains of another, which you see here.

If you want to do an all correct connection to 75 ohm coax, you would need a balun transformer in addition to the plug. I doubt it would work much better in practice than a Heath Robinson solution, though. I always start with a quick-n-dirty antenna, and only work up if needed.

--mika

valve1
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valve1 replied on Sat, Dec 8 2012 11:12 AM

tournedos:
I always start with a quick-n-dirty antenna,

The sordid side of wiring ;-)

Thanks for that info, I will investigate what works best. I have 5 Beomasters  (1200-1400-4400-5000-6000)that I was planning to cable up .

tournedos
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tournedos replied on Sat, Dec 8 2012 12:06 PM

valve1:
I have 5 Beomasters  (1200-1400-4400-5000-6000)that I was planning to cable up .

If they are installed close to each other and you have an outside antenna, then even I would consider an antenna amplifier (and a passive distributor block if the amp doesn't have enough direct outputs) because it will soon end up a mess otherwise Big Smile

If the antenna is indoors, an amplifier often does more harm than good because it will amplify all the interfering signals as well.

--mika

valve1
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valve1 replied on Sat, Dec 8 2012 2:09 PM

tournedos:
If they are installed close to each other and you have an outside antenna, then even I would consider an antenna amplifier (and a passive distributor block if the amp doesn't have enough direct outputs) because it will soon end up a mess otherwise Big Smile

It will be an outside antenna with a lot of cable chasing indoors. I will find some way to terminate all the cables neatly.

chartz
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chartz replied on Sat, Dec 8 2012 2:20 PM

I've seen such plugs on Bonanza... Wink

Jacques

Dillen
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Dillen replied on Sat, Dec 8 2012 2:57 PM

No, you haven't. Laughing
They are TV antenna plugs and too wide for use with radios.

Type D (see below) is what you will be looking for.

Martin

tournedos
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Dillen:
Type D (see below) is what you will be looking for.

...and the AM plug of the same genre (DIN 45315) looks very similar at the first glance, but won't fit - it doesn't have the plastic key in the middle, and one of the prongs is rotated 90 degrees to make a distinction between antenna & earth connections.

--mika

Dillen
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Dillen replied on Sat, Dec 8 2012 3:40 PM

Correct as always, Mika.
The correct type for the FM version is DIN 45316 whereas the AM version is DIN 45315.

Martin

Dillen
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Dillen replied on Sat, Dec 8 2012 4:26 PM

Found a few.
Email sent.

Martin

valve1
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valve1 replied on Sun, Dec 9 2012 7:45 AM

Dillen:

Type D (see below) is what you will be looking for.

 

Plug porn    :-)

 

Dillen
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Dillen replied on Sun, Dec 9 2012 8:21 AM

Some might find the fact that only one is female quite disturbing.

Martin

valve1
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valve1 replied on Mon, Dec 10 2012 12:11 PM

Dillen:
Some might find the fact that only one is female quite disturbing.

.....and only one of them is attached.

Mail sent.

valve1
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valve1 replied on Fri, Dec 21 2012 4:42 PM

Dillen:
Some might find the fact that only one is female quite disturbing.

Two "males" arrived today, thank you Martin. Look forward to setting up my classic 5000's over the holidays.

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