[Collins] Interesting snippet on today's Collins - Mini Circuits Labs

[Greg Mijal]

If you like Mini-Circuits lab stuff, you will love their MAR line.
It's a monoblock (4 legged) rf amplifier that needs only an adjustable 5 
volt supply an input and output cap.  Power line RFC and bypass cap.  The 
circuit will give you 20 db gain at a NF of 3 db or less depending on which 
model MAR you select.  I built one for a Drake TR 4 some years ago and the 
little board made the TR 4 receiver hotter than the hubs of hell.  It's a 
natural to perk up the old BA stuff that is sagging on 15 and 10 meters. 
The WWW has alot of information on this device and a couple of practical 
examples.  Power for the board is take from the filament line, rectified, 
filter and throttle down to give 0 - 5 vdc.  Anything beyond around 5 v will 
kill the device.  Another thing is an external power pot is necessary to 
control the gain (power supply V control) to prevent noise from overtaking 
the signal.
But boy does it work!  The devices are cheap and plentiful.  You can buy 
them at Ebay too.
Have fun!
Greg
WA7LYO
Kinston NC
----- Original Message ----- 
From: "Dr. Gerald N. Johnson" <geraldj at weather.net>
To: <collins at mailman.qth.net>
Sent: Tuesday, April 27, 2010 7:39 PM
Subject: Re: [Collins] Interesting snippet on today's Collins


> Mini-Circuits sells state of the art mixers, amplifiers, filters,
> switches, and attenuators at low prices. That makes them very popular.
> They sell to hams pretty good too.
>
> 73, Jerry, K0CQ, Technical Adviser to the Collins Radio Association
>
> On 4/27/2010 1:04 PM, Adam Farson wrote:
>> Rockwell Collins names Mini-Circuits as top supplier for 2010
>>
>> Full release: http://www.rockwellcollins.com/news/page12411.html
>>
>> Cheers for now, 73,
>> Adam VA7OJ/AB4OJ
>>
>>
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