Isn't the reason to install the SS-400 to save the ON/OFF switch in the L4B?
I have heard some failure stories and also that the switch in not available
any more.
Thanks Will, K6NDV
-----Original Message-----
From: km1h@juno.com <km1h@juno.com>
To: amps@contesting.com <amps@contesting.com>
To: <amps@contesting.com>
Date: Tuesday, February 09, 1999 11:01 PM
Subject: Re: [AMPS] L4B Soft-Start SS-400
>
>
>
>On Tue, 09 Feb 1999 21:42:01 -0500 David Humbertson
><daveh@hereintown.net> writes:
>>
>>Hi All,
>>I recently installed the Harbach SS-400 soft-start module
>>in my L4B and would be interested in hearing from others
>>who have done the same. Looks like my tubes may not be
>>fully cutoff as I am seeing a bit of plate current and a small
>>amount of neg grid current in standby - works fine otherwise.
>>My 120 volt line reads 100.3 in SSB with the module in and
>>125 with it out. No one else that I know of has experienced
>>this.
>
>Sounds like a defective module Dave. Besides, why bother using one
>anyway? The L4B PS has sufficient inrush lag as designed, plate and
>filament. If you are using an external heavier duty replacement xfmr then
>switching to 1N5408 diodes in the HV will more than enough handle any
>inrush. Costs less than a failure prone add-on.
>
>73 Carl KM1H
>
>.
>
>
>>--
>>73, Dave - W3NP
>>Ft. Ashby, WV
>>
>>
>>
>>--
>>FAQ on WWW: http://www.contesting.com/ampfaq.html
>>Submissions: amps@contesting.com
>>Administrative requests: amps-REQUEST@contesting.com
>>Problems: owner-amps@contesting.com
>>Search: http://www.contesting.com/km9p/search.htm
>>
>>
>
>___________________________________________________________________
>You don't need to buy Internet access to use free Internet e-mail.
>Get completely free e-mail from Juno at http://www.juno.com/getjuno.html
>or call Juno at (800) 654-JUNO [654-5866]
>
>--
>FAQ on WWW: http://www.contesting.com/ampfaq.html
>Submissions: amps@contesting.com
>Administrative requests: amps-REQUEST@contesting.com
>Problems: owner-amps@contesting.com
>Search: http://www.contesting.com/km9p/search.htm
>
>
--
FAQ on WWW: http://www.contesting.com/ampfaq.html
Submissions: amps@contesting.com
Administrative requests: amps-REQUEST@contesting.com
Problems: owner-amps@contesting.com
Search: http://www.contesting.com/km9p/search.htm
|