[Boatanchors] Please review & comment on my Heath Warrior HA-10 amplifier design changes

[Gary Schafer]

Rick,
Forgot to tell you in the last post, the zener ground needs to be lifted and
connected to the negative side of the plate current shunt. You should have
your 56k resistor in series with the zener and the relay across the resistor
to short it out when going to transmit.

73
Gary  K4FMX

> -----Original Message-----
> From: Boatanchors [mailto:boatanchors-bounces at mailman.qth.net] On Behalf
> Of Rick Poole WA1RKT
> Sent: Saturday, November 22, 2014 9:47 PM
> To: boatanchors at mailman.qth.net
> Subject: Re: [Boatanchors] Please review & comment on my Heath Warrior
> HA-10 amplifier design changes
> 
> Good evening, Gary.
> 
> I read that link per some suggestions I received earlier this evening,
> and also page 84 of the Heath SB-220 manual, and came up with some
> revisions to the schematic at http://www.rkt-tech.com/warrior labeled
> "UPDATE".
> 
> If you're so inclined, please take a look at that and let me know if you
> think I'm on the right track.
> 
> Thanks...
> 
> Rick WA1RKT
> 
> 
> ----- Original Message -----
> From: "Gary Schafer" <garyschafer at largeriver.net>
> To: "Rick Poole WA1RKT" <wa1rkt at comcast.net>,
> boatanchors at mailman.qth.net
> Sent: Saturday, November 22, 2014 10:39:52 PM
> Subject: RE: [Boatanchors] Please review & comment on my Heath Warrior
> HA-10 amplifier design changes
> 
> This link will get you started on the metering:
> http://www.w8ji.com/metering_amplifier.htm
> 
> basically the grid meter goes from filament center tap to ground. The
> plate
> current meter goes from the top side of the grid meter to B-. you would
> lift
> the B- from ground and it would now go to the meter shunt.
> 
> Good luck
> Gary  K4FMX
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