[ARC5] Crawfishing: BC-375 on 30 Meters

[mstangelo at comcast.net]

I've tried some of these Chinese regulators. One has to be cautious. 

The regulation is not that great. The 8 Amp value is probably peak current.

They generate RF noise.

The negative input and output connections on some regulators have to be isolated from each other.

Mike N2MS
----- Original Message -----
From: Roy Morgan <k1lky68 at gmail.com>
To: David Stinson <arc5 at ix.netcom.com>, ARC-5 List <arc5 at mailman.qth.net>
Sent: Thu, 31 Oct 2013 18:38:49 -0000 (UTC)
Subject: Re: [ARC5] Crawfishing:  BC-375 on 30 Meters


On Oct 31, 2013, at 6:51 AM, David Stinson <arc5 at ix.netcom.com> wrote:

> Well, I'll have to call "hold up" on the BC-375 ... The drift is back on 30 and 40 meters.
...
> 811/812 will fit but requires regulating the filament voltage down.
> Will order an 8 Amp DC-DC buck module for that.

Dave and others:

This evilBay seller has all sorts of modules including DC to DC buck/boost modules for VERY reasonable prices - (shipping from China is free!):
DC-DC converters, small bar type voltage displays, LED readout volt meters, thermometers, and such:
bestgoodbuy

eBY STORE:  http://stores.ebay.com/bestgoodbuy?_trksid=p2047675.l2563
Example:
High-power DC-DC 8-40V to 12V 8A buck step down power supply module power converter  $11.00

Roy
Not a customer - yet.

Roy Morgan
RoyMorgan at alum.mit.edu
K1LKY Since 1958