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Re: [Amps] Some PS questions

To: Amps reflector <>, Vic K2VCO <>
Subject: Re: [Amps] Some PS questions
From: Glen Zook <>
Date: Fri, 22 Jul 2011 14:55:54 -0700 (PDT)
List-post: <">>
I put them in the power supply.  Also, remember, in grounded grid, you will 
measure the grid current using this resistor as a shunt.  In a grounded grid 
power supply you have to put the shunt between the capacitor/bleeder stack and 
the B- to measure plate current.

Most modern designs don't use capacitors anymore.  I don't think they will hurt 

Glen, K9STH


--- On Fri, 7/22/11, Vic K2VCO <> wrote:

1) I'm building an amplifier with a separate power supply with the negative 
output isolated from ground to allow for plate current metering. The meter will 
be located in the RF unit. Where should the safety resistor between B- and 
ground be located? In the power supply or in the amp?
2) What's the current thinking about shunt capacitors across rectifiers? I am 
going to use a bridge with 5 6A10's in each leg. They are all from the same 
batch (at least, they came on the same tape). Do they need capacitors? I will 
have MOVs in the primary circuit.
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