[time-nuts] Thunderbolt - any negatives ?
sar10538 at gmail.com
Mon Jun 1 22:04:10 EDT 2009
The other issue is noise from a switcher.
2009/6/2 Hal Murray <hmurray at megapathdsl.net>:
> phill.r1 at btinternet.com said:
>> I would recommend using a linear PSU, I have some made by a Company
>> called Lascar (perhaps a different name in the States). These are not
>> much larger than the Thunderbolt itself with a little more height.
>> They have three separate VS./Rags, 5 volts and +15/-15 volt supplies
>> of sufficient capacity - all with trim-pots. Mine has been working
>> for at least one year non-stop - and you can be confident that it
>> will not blown up, unlike some switched supplies.
> Is there something I don't understand in this area? What makes a linear
> supply more reliable than a switcher?
> My first guess would be a switcher would be more reliable because it would
> run cooler.
> That's probably assuming the same amount of design effort which is probably
> not a valid assumption if I'm comparing a brand-X linear with a brand-Z
> switcher. A quick glance at the general construction might give a better
> These are my opinions, not necessarily my employer's. I hate spam.
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Steve Rooke - ZL3TUV & G8KVD & JAKDTTNW
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