[time-nuts] TNS-BUF High Isolation, Low Noise Buffer Amp Available

John Ackermann N8UR jra at febo.com
Wed Oct 12 09:42:20 EDT 2016

Hi Chris --

The input and output are straight SMAs mounted on the back of the PCB. 
The idea is that you can mount it in the cover of a small die-cast box 
secured by the SMA hardware (I used a Hammond BB1590N1).  All you have 
to do is drill a couple of 3/16 holes, plus another hole for a power 

This is a buffer amp, not a distribution amp, so it's a single channel 
circuit, and high isolation was one of the key design criteria.


On 10/12/2016 09:08 AM, Chris Caudle wrote:
> On Wed, October 5, 2016 9:15 am, John Ackermann N8UR wrote:
>> I've previously mentioned a high performance buffer amplifier called the
>> "TNS-BUF" that I built based on a design by Dr. Bruce Griffiths with
>> further input from John Miles.
> None of the pictures have shown the connector side of the assembled PCB.
> Does the layout accommodate mounting in an enclosure?
> And is this layout just a single channel of the buffer design?  In other
> words only for buffering an oscillator to a single other device for
> preventing crosstalk or injection locking, not for distribution.

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