[time-nuts] Ebay FE-5680A Rb I see the price has gone up for these

Roy Phillips phill.r1 at btinternet.com
Tue Dec 20 10:13:52 EST 2011



--------------------------------------------------
From: "Rex" <rexa at sonic.net>
Sent: Tuesday, December 20, 2011 1:10 PM
To: "Discussion of precise time and frequency measurement" 
<time-nuts at febo.com>
Subject: Re: [time-nuts] Ebay FE-5680A Rb I see the price has gone up for 
these

> FWIW. I just hapened on this power supply in an ad. You might find a fixed 
> voltage one somewhere cheaper, but the price seemed ok, so here it is for 
> consideration...
> http://www.mpja.com/email/12-13-11.asp?r=284759&s=2
>
> Still need the 5 V somehow, so not a complete solution for the 5680A.
>
>
> On 12/19/2011 3:06 PM, GandalfG8 at aol.com wrote:
>> In a message dated 19/12/2011 22:27:22 GMT Standard Time, caf at omen.com
>> writes:
>>
>> This  thing requires plenty of current to get started.
>> My Tek CPS250 1.2 amp  output (A+B parallel) only gets 7.5 volts.
>> Now to scrounge something a bit  bigger.
>> ---------------------
>> The 15 volts to pin 1 starts off needing to supply around 1.7 Amps,
>> eventually falling to somewhere between 700 and 800 mA.
>>
>> Pin 4 always draws around 85 to 90 mA from its 5 volt supply.
>>
>> regards
>>
>> Nigel
>> GM8PZR
>>
>
> Nigel
    I trust that you are aware that some models of the FE-5680A only require 
the 15 volt/1.7Amp. supply.   In fact connecting a 5 volt supply to the 
units that are programmable can cause damage !
    Roy

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