If you need the lead lengths for heat dissipation with 6A10 diodes for
QRO....You’re probably running WAY too much power...
73
Jim W7RY
-----Original Message-----
From: Mike
Sent: Friday, July 05, 2013 2:11 PM
To: 'Chris Wilson' ; 'Amps'
Subject: Re: [Amps] premade HV rectifier board
Jameco sells these Keystone turret boards on glass epoxy boards and they are
the cat's meow, just use the lead length of the 6A10's to ur advantage for
heat dissipation in QRO use. Checkout the Keystone full catalog for lottsa'
goodies for homebrew, hardware wise...
Mike, K4EAR
-----Original Message-----
From: Amps [mailto:amps-bounces@contesting.com] On Behalf Of Chris
Wilson
Sent: Friday, July 05, 2013 4:00 PM
To: Amps
Subject: Re: [Amps] premade HV rectifier board
> You can build your rectifier assembly for a fraction of what others
> are charging.
> Get a piece of flat plastic (nylon, delrin, HDPE or anything
> drillable) and drill a series of holes spaced a bit farther than the
> length of a 6A10 diode. Using a nut and bolt, install a ground lug in
> each hole and solder the 6A10s from lug to lug (see note below). Mount
> the plastic to your chassis using insulating standoffs. Simple as can
be.
> eBay is a good source of small plastic pieces, or the plastic cutting
> boards
> (HDPE) sold at any variety store are good too.
> A couple of cautions:
> 1. Some plastics will melt at soldering temperature, so you may want
> to do the soldering before fastening the ground lugs down.
> 2. If you buy the 6A10s all together so they come from the same
> manufacturing batch, you won't need equalizing resistors. They will be
> closely matched enough.
> You can use this same concept for mounting your filter capacitors.
> Spend the money you saved on antennas. That will help your signal far
> more than some fancy rectifier assembly. :-)
> 73, Bill W6WRT
> _______________________________________________
> Amps mailing list
> Amps@contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
05/07/2013 21:56
I quite like turret tags, or turret posts, whatever they are called.
Considered old fashioned nowadays, but easy to insert and place and they
allow air flow under and around the rectifiers. I even made a little steel
jig to
enable accurate drilling when I make another.
http://www.chriswilson.tv/diodes.jpg
Has anyone seen inside a rectifier "stick"? Are they just normal rectifier
diodes soldered together then epoxy encapsulated?
--
Best Regards,
Chris Wilson.
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