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

DaveH info at blackmountainforge.com
Thu Sep 1 00:24:38 EDT 2016


Someone could come out with a circuit board for a single configurable
voltage and decent noise specs. Use three of them for a Tbolt.

It is really easy to use the transformer from an old microwave oven to make
your own power transformer - the HV and the 110 volt windings are on
separate parts of the core so it is a matter of a few minutes to hacksaw off
the HV winding and you can use standard household THHN wire for your new
secondary - wind ten turns, measure the voltage and use that to figure how
many turns you actually needed.

If someone came out with such a bare board, I would buy 20 of them just to
keep around for projects.

Dave

> -----Original Message-----
> From: time-nuts [mailto:time-nuts-bounces at febo.com] On Behalf 
> Of Bob Stewart
> Sent: Wednesday, August 31, 2016 14:29
> To: Discussion of precise time and frequency measurement
> Subject: Re: [time-nuts] Anybody want a Thunderbolt power supply?
> 
> OTOH, how many time-nuts have any interest in paying for a 
> power supply that's up to time-nuts standards?  It's really 
> not easy to bring a small product to market at a small price. 
>  Even if you completely discount the personal effort of 
> design, construction, and marketing, there's the issue of 
> packaging.  Without a package, it's just an amateur effort 
> not worth considering.  With a package, such as a Hammond 
> box, the price moves into new territory and nobody's interested.
> 
> Bob 
> 
> 
>       From: Charles Steinmetz <csteinmetz at yandex.com>
>  To: time-nuts at febo.com 
>  Sent: Wednesday, August 31, 2016 4:24 PM
>  Subject: Re: [time-nuts] Anybody want a Thunderbolt power supply?
>    
> Mark wrote:
> 
> > Some times a full linear supply is not a viable option due 
> to power dissipation/size issues or the utter convenience of 
> using a switching wall wart.
> 
> In the context of the present discussion -- powering a Tbolt for 
> time-nuts use -- the first consideration would just be 
> laughable and the 
> second would be nothing but terminal laziness.
> 
> Best regards,
> 
> Charles
> 
> 
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