Problem with the Soft Start module mod for the SB220 from Harbach

[Francisco Viegener]

Hi Jeff,  I disconnect the Mov's until now.
I will try to get them here ,don't worry!
My intention was to tell you and others about the problem .
Thanks ,Francisco LU3EEC

----- Original Message -----
From: "Jeff Weinberg W8CQ" <w8cqjeff at tds.net>
To: "Francisco Viegener" <fev at CIUDAD.COM.AR>; <HEATH at LISTSERV.TEMPE.GOV>
Sent: Saturday, October 06, 2001 11:10 AM
Subject: Re: Problem with the Soft Start module mod for the SB220 from
Harbach


> Hi Francisco and Everyone,
> If you are outside of the USA and need larger MOV's for the SS-220 kit,
> please let me know when ordering.  I do not keep them in stock, but will
be
> happy to order them and put them in the kit.
>
> Regards,
> Jeff Weinberg  W8CQ
> Harbach Electronics
> (317) 892-2641
> http://www.harbachelectronics.com
>
>
> ----- Original Message -----
> From: "Francisco Viegener" <fev at CIUDAD.COM.AR>
> To: <HEATH at LISTSERV.TEMPE.GOV>
> Sent: Saturday, October 06, 2001 9:07 AM
> Subject: Problem with the Soft Start module mod for the SB220 from Harbach
>
>
> I bought in Ebay a SB220 Heathkit RFamplifier and after installing the
Soft
> Start Module from Harbach I had a big ,skared,nice explotion, after I
pluged
> it  in the 220volt normal AC pwer line here in Argentina.
> Everything was good connected but one of the varistor Z 2 (200VMOV) had
> exploded and maked a lot dirt inside and near the Start module.
> Harbach give you in the kid 1MOV for 390volts that is connected between
the
> two end terminal of the power line were you have 220 volts,this is good
for
> USA and for countries like mine that had 220/380volts.
> But then Harbach provide 2 Mov's rated for 200volts that are connected
from
> each of this terminal to ground,and in my case one of this terminal is
> neutral to ground and the other is hot with 220 volts to ground so the
MOVs
> rated 200volts is to low and that happen to explote it.
> Maybe this is not interesting for USA but it is important to all countries
> with 220/380volts.
> (In USA the voltage when the Ampl is connected to 220 volt the voltage
> between each terminal of the Power line and ground is 110 volts thats way
> MOVs rated for 200volts are good.)
> Thanks , and my intention was to help not to complain,
> Francisco LU3EEC.
>
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