[time-nuts] Lucent KS-24361, HP/Symmetricom Z3809A, Z3810A, Z3811A, Z3812...

GandalfG8 at aol.com GandalfG8 at aol.com
Sat Nov 1 22:06:51 EDT 2014

Hi Arthur,
Thanks for the extra information, it sounds like you may well have answered 
 my question:-)
As I commented to Bob, I was hoping I might be able to find an option that  
didn't require any internal access, I knew that was a long shot anyway but 
I  quite liked the idea of a plug and go solution.
Anyway, I can assure you that what you did wasn't just black magic, or  at 
least that if it was the magic still works:-)
In a message dated 02/11/2014 01:27:18 GMT Standard Time,  
golgarfrincham at gmail.com writes:

Keep in  mind that I made the modifications to my RFTG-u REF 1 almost
4 years ago  and the details of why I did what I did are kind of foggy
today. It was a  pure hack but I *believe* that the circuitry as well
as the jumpers were  required, or at least I thought so. The big problem
with getting something  like this to work is that after spending a lot
of time on it I generally go  on to the next project and as long as what
I did works, I forget about it  because it is a one of a kind thing. The
photo link below shows the 5Mhz  buffer amp I connected to the TP in
front of the oscillator that uses a  mounting bracket that is secured
by the BNC connector that outputs the  5Mhz. The 24V/2A power supply that
I mounted on the back connects across  the diode on the circuit board as
shown. The transistors and other  components of the modification that are
mounted free form on the back of  the J5 connector get the +5VDC from
the header directly in back of J5. The  wire on the left goes through an
existing hole on the circuit board to  connect to the fault LED.

I was hoping that someone else would  duplicate the modification just to
reassure me that what I did wasn't black  magic. It looks like Nigel is
doing just  that-thanks.

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