Hi guys
thanks for all input! :)
73s LA6FJA Rag
2013/7/7 Rejean Leveille <releveille@videotron.ca>
> Hi Dave
>
> With 240v ac line input we get +3600 HV that means we already reached 450v
> for 450v capacitor. Seen nothing is perfect if you measured each capacitor
> some will show +455v and in the event there was a line voltage spike there
> is a chance to blew them up. When I received my Al-1500 I installed some
> 500v to be on the safe side and cheaper than to buy a new board again
> working on the edge.
>
> Also the wiring is under size for the HV input transformer circuit and I
> doubled the wiring circuit. Now the HV voltage drop is 200v instead of 600v
> at 2kw. I did many mod to meet heavy duty usage 160-10m and safety taken
> from commercial service engineer. Original specs are taken from the Eimac
> tube what it could do and this Amplifier reached its limit at 1.5kw. I like
> to have more head room, stable IMD and this is possible.
>
> 73, Réjean va2am
>
> -----Message d'origine-----
> De : Amps [mailto:amps-bounces@contesting.com] De la part de Dave
> Hachadorian
> Envoyé : July 4, 2013 6:25 PM
> À : amps@contesting.com
> Objet : Re: [Amps] premade HV rectifier board
>
> A friend of mine blew one of the filter capacitors in his AL-1500. As I
> remember, the entire filter capacitor board, with capacitors and resistors
> installed, was very reasonably priced.
> ($180?) I suspect that their Rectifier Board is also reasonable.
> The techs at Ameritron are very friendly, knowledgeable, and a pleasure to
> deal with.
>
> The AL-1500 manual, with schematic, is here:
>
> http://www.qsl.net/4/4x6on/RADIO%20MANUALS/AMERITRON/AMERITRON--AL-1500-User
> -Manual.pdf
>
>
> Dave Hachadorian, K6LL
> Big Bear Lake, CA
>
>
> -----Original Message-----
> From: Stein-Roar Brobakken[LA6FJA]
> Sent: Thursday, July 04, 2013 5:31 AM
> To: amps@contesting.com
> Subject: [Amps] premade HV rectifier board
>
>
> Hi
>
> Does anyone know a place to buy premade HV rectifier board etc
> for HF
> amplifier?
>
> 73s LA6FJA Rag
>
>
>
>
>
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