Heathkit SB-200 - no output

RAY FRIESS rayfrijr at MSN.COM
Sun Jan 20 17:28:55 EST 2008


Make sure the contacts on the relay are clean and making contact.  That can affect things.
> Date: Sun, 20 Jan 2008 14:19:19 -0600> From: tlbuch at SCRTC.COM> Subject: Heathkit SB-200 - no output> To: HEATH at LISTSERV.TEMPE.GOV> > Hi,> > > > I am working on my first SB-200 amplifier project. I brought the amp up> slowly on a variac to 120 volts. During tune up I observed the following:> 2500 HV & SWR metering works. I tested it with a solid state rig and also a> Heathkit HW-100 with the same results. There is no idling, grid or plate> current and adjustment of the load and tune controls has no effect on> output. Increasing the drive from either rig doesn't affect the amplifier> either. Anyone had a similar experience or ideas?> > > > From Harbach Electronics I installed a fan, a soft start module and a couple> of paper caps were replaced with modern electrolytics. There was an existing> soft key interface from Harbach in the amp and upon review the circuit> appeared to be installed correctly. > > > > 73,> > > > Tom> > KG4KGY > > > -----------------------------------------------------------> Products bought, sold or traded here is the responsibility of the> parties involved. This list and the City of Tempe are not responsible> for losses or misrepresentations of any kind. Buyer beware!> > -----------------------------------------------------------> This list is a public service of the City of Tempe, Arizona> -----------------------------------------------------------> > Subscription control - http://www.tempe.gov/lists/control.aspx?list=HEATH> To post - HEATH at LISTSERV.TEMPE.GOV> Archives - http://listserv.tempe.gov/archives/HEATH.html
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Products bought, sold or traded here is the responsibility of the
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for losses or misrepresentations of any kind.  Buyer beware!

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