> In a message dated 10/16/02 10:16:36 AM Pacific Daylight Time,
> stevek@jmr.com
> writes:
>
> << Whoever posted yesterday that the DTR-2000L amplifier uses a voltage
> tripler
> was wrong. The schematic clearly shows a voltage doubler made of twelve
> 1kV
> 3A diodes and twelve 100uF, 500V capacitors. >>
>
>
> Steve:
>
> Dentron never ever used that much safety margin on their capacitor
> string.....
> only eight (8) caps in the DTR-2000L (I walked over and looked at it)
>
> Bill W6WCW
> Santa Barbara, Ca.
>
> p.s. Yes, the voltage sags a hell-of-a-lot....
>
[Steve Katz] I don't doubt that at all, Bill. Well, I don't have a
DTR-2000L to look at, and am only going by the schematic diagram, which
shows 6 diodes and 6 capacitors in each leg of the doubler. If they really
only used 4 of each, they were pushing it, if they used only 500V rated
capacitors. But nothing surprises me! I owned three or four different
Dentron amps back in the 1970's and I believe none are still around. Had to
completely rebuild a "Clipperton-V" two meter amplifier, because almost
nothing in the entire amp, other than the front panel and power cord, was
done correctly. -WB2WIK/6
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