[Amps] Soft Start

[Warren Volz]

I’d recommend a step start with fuses. I have w7ry’s board in my sb220 and the fuses saved me from a bad tube once already.

-Warren

> On Dec 26, 2017, at 8:59 PM, Jim W7RY <jimw7ry at gmail.com> wrote:
> 
> 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 at 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
> 
> 
> 
> Sent via the Samsung Galaxy S8 Active, an AT&T 4G LTE smartphone
> _______________________________________________
> Amps mailing list
> Amps at contesting.com
> http://lists.contesting.com/mailman/listinfo/amps 
> _______________________________________________
> Amps mailing list
> Amps at contesting.com
> http://lists.contesting.com/mailman/listinfo/amps