valviac.com -> audio/diy ->
(click photo to download schematic pdf - ~120kB)
February, 4th. 2006
Ok ... the story continues. Finally I've done it.
I converted this
jewel to parafeed.
I was very happy with the original "Towari
design esp. in
combination with my
SABA GreenCone Speakers but I was carrying this
parafeed thought in my mind for a long time.
However I didn't find any
source for the anode load chokes.
Oh, please get me right - there are
many sources out there in space, but most of them charge space prices.
As I told you, my budget is limited. I recently found the anode chokes
by accident at Reinhöfer Röhrentechnik.
After doing a
of calculating and schematic drawing I finally ordered them.
this modification there are changes in the B+ and in the tubes bias.
Please have a look at the schematic. The photo shows the 2
anode chokes in front.
mentioned at the "Towari
šč" Page - all R's are standard
2W MO Types from Reichelt.
The C's are MKP Types and the Cathode R's
Bypass Electrolytics are bipolar types.
The output trannies are from
The main trannie is from HB Ampdesign and I use two
trannies for 5U4G Heating from Reichelt.
You can find their
Web Sites at the audio/diy-linkz.
SSSOOOOOOOUUUUUUUUUNNNNNNNDDDDDDDD??? I hear you scream.
This is NO dramatical improvement PERIOD.
It's a little bit more of
everything. A bit more of singing and splendidness.
It's up to you if
you want to spend the ~ 80 EURs for this change.
I wouldn't hesitate a
free to contact
me, if you have any questions, suggestions, comments etc.