Hello everybody,
(me again...) _good_ news: I got the little amp up and running!
After I had followed all the precautions you advised me to,
e. g. a 25W lightbulb in series (and an amperemeter) - I was
courageous enough to switch it on - nothing happened (33V).
With a 60W bulb I had 185mA current - and a hardly audible
click came from the speaker. 100W - and there came music
from both speakers... I finally omitted the lightbulb.
Only then I placed the speakers (braun L550, about 1970 -
just at hand for testing) into a stereo position, and
me in the middle - and off I went listening for hours...
My source: a cheap AIWA portable CD player.
OK, I have no direct comparison yet... but my impression
is indeed: that amp is _fantastic_!
Horowitz in Moscow: with eyes closed I had the impression of
sitting backstage near the Steinway (must be quadro to have
the coughs of the audience from behind).
A CD from a jazz trio I happen to know personally named
Swinger Club - Monsters of Jazz. Up with volume and the
sound is not much far from being right in front of a gig.
CanŽt say where this comes from, without high-level speakers.
Maybe it is just that: a simple but efficient two-way speaker.
One thing is for su I will keep this amp, at least until
a better one shows up. Next action will be to compare directly
with half a dozen others and a little audience invited.
IŽll post their vote here then! And add more pictures to
http://www.in4tec.de/PICS/RADFORD/luckyfind.html.
Wish I could add authentic audio there...
Cheers!
Walther