An earlier question concerned whether the Thunderbolt could be put into battery
backup mode without the -12V supply. The definitive answer is NO!
The Thunderbolt OCXO is controlled via a DAC voltage that can range from -5V to
5V (the standard oscillator control is -5Hz/V. All mine are
On Sat, Jul 5, 2008 at 10:44 PM, Tom Clifton [EMAIL PROTECTED] wrote:
As I sit here reviewing the power requirements for the Thunderbolt, I note
that the -12v is only 10ma. Does this indicate that it is only used for the
RS232 output and if so for a battery backup I can cheat and only
As the requirement is for a few milliamps it appears that All Electgonics has
an inexpensive DC DC converter
http://www.allelectronics.com/make-a-store/item/DC-32/DC-DC-CONVERTER/-/1.html
that runs off of +5v. All I have to do is to run the -19v output throught a
negative regualtor and its a
As I sit here reviewing the power requirements for the Thunderbolt, I note that
the -12v is only 10ma. Does this indicate that it is only used for the RS232
output and if so for a battery backup I can cheat and only service the +12v
(750ma)and +5v (400ma)?
