[time-nuts] Anybody want a Thunderbolt power supply?

Bob Camp kb8tq at n1k.org
Thu Sep 1 09:58:48 EDT 2016


For multiple TBolts, the simple answer is local regulation. LT1764’s work fine for the +12 and +5 side. A well bypassed 79L12 can
do the trick for the -12. Feed them all of of a  bulk +15 (high current) llinear supply and a -15 with the lowest output you can find. 

The gotcha is that if you have a power outage … all of them fire up at once. The OCXO’s go to max and that condition likely will 
do nasty things to a supply not rated to handle the current. A current limit supply will likely *eventually* recover. A holdback supply 
may not ever come back. A supply with defective overload protection may burst into flames ….

Lots of fun.


> On Sep 1, 2016, at 9:44 AM, James Robbins <jsrobbins at earthlink.net> wrote:
> Is there a problem running more than one Thunderbolt off of the same linear supply (assuming the supply can support the current demands) or does each Thunderbolt require its’ own separate linear supply?  Jim Robbins
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