Rick,
Definitive statements can't be made unless the plate voltage meter is known to be in calibration and/or an external meter used to verify its accuracy. 73, Evan, K9SQG -----Original Message----- From: richard radke <[email protected]> To: drakelist <[email protected]> Sent: Mon, Feb 20, 2012 12:14 pm Subject: [Drakelist] low plate voltage Marc, I agree with Lee. Low input voltage. Mine shows 2700 volts running from a 240vac line after rebuild. What do you see in the cw/tune position, lower by the same percentage? Rick W9WS On Feb 20, 2012, at 11:00 AM, [email protected] wrote: > Send Drakelist mailing list submissions to > [email protected] > > To subscribe or unsubscribe via the World Wide Web, visit > http://mailman.zerobeat.net/mailman/listinfo/drakelist > or, via email, send a message with subject or body 'help' to > [email protected] > > You can reach the person managing the list at > [email protected] > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Drakelist digest..." > > > Today's Topics: > > 1. Re: low plate voltgage l4b ([email protected]) > 2. Re: low plate voltgage l4b (Dino Papas) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Mon, 20 Feb 2012 11:16:17 -0500 (EST) > From: [email protected] > To: [email protected], [email protected] > Subject: Re: [Drakelist] low plate voltgage l4b > Message-ID: <[email protected]> > Content-Type: text/plain; charset="utf-8"; format=flowed > > Marc, > What is your line voltage? > 73, > Lee > > > > -----Original Message----- > From: hs0zju <[email protected]> > To: drakelist <[email protected]> > Sent: Mon, Feb 20, 2012 10:53 am > Subject: [Drakelist] low plate voltgage l4b > > > I recently aquired a l4b. I upgraded the ps and soft key with harbach. > I turned the amp on in ssb with no load and have 2400 volts. I did not > try and key or do anything else as i do not want to cause damage. I > believe i should have 2600volts.? > 73 marc hs0zju > sent from galaxy tab 10.1 > > _______________________________________________ > Drakelist mailing list > [email protected] > http://mailman.zerobeat.net/mailman/listinfo/drakelist > > > > > ------------------------------ > > Message: 2 > Date: Mon, 20 Feb 2012 11:16:57 -0500 > From: Dino Papas <[email protected]> > To: Mail List - Drake Gear Drake Gear <[email protected]> > Subject: Re: [Drakelist] low plate voltgage l4b > Message-ID: <[email protected]> > Content-Type: text/plain; charset="us-ascii" > > Marc - I just rebuilt the L-7PS with a Harbach board (and a L-4PS > with the Heathkit Shop board)....Both boards show 2700 volts on the > amp meters after putting them into operation. > > Did you do a low-voltage test before installing? I applied a 20VAC > voltage to the input and got ~50VDC at the outputs verifying the > voltage doubler function. > > You may want to give that a try....sounds like a part reversal > during install. > > Dino KL0S > > On Feb202012, at 1050 AM, hs0zju wrote: > >> I recently aquired a l4b. I upgraded the ps and soft key with >> harbach. I turned the amp on in ssb with no load and have 2400 >> volts. I did not try and key or do anything else as i do not want >> to cause damage. I believe i should have 2600volts. >> >> 73 marc hs0zju > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: <http://mailman.zerobeat.net/pipermail/drakelist/attachments/ > 20120220/422fa7a5/attachment-0001.html> > > ------------------------------ > > _______________________________________________ > Drakelist mailing list > [email protected] > http://mailman.zerobeat.net/mailman/listinfo/drakelist > > > End of Drakelist Digest, Vol 44, Issue 38 > ***************************************** > _______________________________________________ Drakelist mailing list [email protected] http://mailman.zerobeat.net/mailman/listinfo/drakelist
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