[R-390] revelation and the diode load ...

Roy Morgan roy.morgan at nist.gov
Fri Aug 12 09:21:52 EDT 2005


At 12:39 AM 8/12/2005, Mike Castellana wrote:
>Finally got around to checking out audio off diode
>load... I can't believe the improvement.

Mike,

Good for you.  Everyone should try this.

>... Macintosh MC-40 into a single Dynaco A25

Bravo on the McIntosh amp. A nicer 6L6 amp is hard to find!  (I have one 
here.)  I found that the Dynaco 25 is a speaker. Some info and box diagrams 
are at:
http://www.t-linespeakers.org/classics/dynaco.html

I have here an Acoustic Research AR-2 that may be of similar vintage. It's 
got an unfinished pine case and is quite beat up. I expect to try it in a 
setup very similar to yours.

>Is it a good idea to remove V603 and V604 if I
>continue to use an outboard amp? Seems like radio
>might run cooler.

It will run a bit cooler, and tube life is greatly extended by storage in a 
box. heheh

Roy


- Roy Morgan, K1LKY since 1959 - Keep 'em Glowing!
7130 Panorama Drive, Derwood MD 20855
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