I have had several DTR2000L's, and still own one now. They are good little
desktop amps and the 8877 makes it quite attractive. On a good 220V source
they make 1500w on 160-40m, a shade less than 1500w on 20-15m, and around 1200w
on 10m. Fortunately I never had a hardware or tube failure in any of mine. I
think the design capability is somewhat "undersized" and that helps prevent
"accidents" from occuring.
That being said, there is room for improvement. I have read about and seen
a number of "enhancements" that have been made by the Sage's that haunt this
list and elsewhere.
1) Peter Dahl XFMR.
1A) Dialing in the filiment voltage to a spec value (my filiments were over max
V)
2) Re-capping the power supply and better rectifiers.
3) Enhance the cooling on the tube.
4) Add a grid trip circuit and some have added a grid current metering function
to the multimeter.
5) Replaced the output TR with a vaccuum relay.
6) Plate choke and parasitic choke enhancements.
Have fun with it...
73's Mike K9MK/5
-------------- Original message from n8de@thepoint.net: --------------
> Lee,
> The one sitting on my desk is good, especially since it has a Peter
> Dahl Xfrmr, and the 8877 puts out legal limit [Well ... when I have
> 220v line installed, it will].
>
> The 8877 is one of the most reliable tubes in service, imho, and the
> DTR-2000L can be found on the used market, though not very often.
>
> Don
> N8DE
>
> Quoting Lee Buller :
>
> >
> >
> > What does anyone know about the Dentron DTR 2000L amp? Seems to be
> > straight forward amp. Good? Bad? Ugly?
> >
> > Lee - K0WA
> >
> >
> >
> > In our day and age it seems that Common Sense is in short supply.
> > If you don't have any Common Sense - get some Common Sense and use
> > it. If you can't find any Common Sense, ask for help from somebody
> > who has some Common Sense. Is Common Sense divine?
> > _______________________________________________
> > Amps mailing list
> > Amps@contesting.com
> > http://lists.contesting.com/mailman/listinfo/amps
> >
>
>
>
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