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Re: [Amps] Soft Start

To: "Arnie Pfingst" <arnie123@hotmail.com>, <amps@contesting.com>
Subject: Re: [Amps] Soft Start
From: "Jim W7RY" <jimw7ry@gmail.com>
Date: Tue, 26 Dec 2017 20:59:49 -0600
List-post: <mailto:amps@contesting.com>
I recommend 10 Ohms. I use 2 resistors and 2 relays. There are fuses in series with the resistors to protect them.

Why would a cap blowing up cause an issue with a step start circuit?

Again, I use 2 resistors and 2 relays on a small circuit board.

See:

https://www.ebay.com/itm/282765541853?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649

73
Jim W7RY





-----Original Message----- From: Arnie Pfingst
Sent: Tuesday, December 26, 2017 8:31 PM
To: amps@contesting.com
Subject: [Amps] Soft Start

Once upon a time, i had a capacitor explode upon start up. I've heard stories for and against adding a soft start circuit to my amplifiers.(Some say 20 ohm resistors, and others say 30 or 40 ohm.) That and the price of replacement tubes. In my case i have two TL 922a amps using 3-500z tubes.
Both set up on 240vac. What do you all have to say here. Thanks
Arnie



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