Independent review by Bob Macc - one of the first-movers of G21:
http://bobmaccsblog.wordpress.com/2014/ ... um-review/
Jakob E.
Search found 67 matches
- Sat Jun 28, 2014 12:37 am
- Forum: Creative Recording
- Topic: The Gyraf Magneto-Dynamic Infundibulum
- Replies: 9
- Views: 6513
- Thu Mar 20, 2014 7:40 am
- Forum: Creative Recording
- Topic: The Gyraf Magneto-Dynamic Infundibulum
- Replies: 9
- Views: 6513
- Mon Sep 23, 2013 4:15 am
- Forum: Creative Recording
- Topic: The Gyraf Magneto-Dynamic Infundibulum
- Replies: 9
- Views: 6513
Thanks Leigh, Actually, Hannes Bieger of SOS magazine managed to figure most of this out by himself - but asked us for confirmation before publishing. I really respect that sort of in-depth work from a reviewer, when it comes to describe complex stuff like this. And btw you're right - this type of c...
- Thu Sep 19, 2013 7:43 am
- Forum: Creative Recording
- Topic: The Gyraf Magneto-Dynamic Infundibulum
- Replies: 9
- Views: 6513
The first user comments are starting coming out:
http://www.gearslutz.com/board/high-end ... bulum.html
Jakob E.
http://www.gearslutz.com/board/high-end ... bulum.html
Jakob E.
- Tue Jan 12, 2010 6:06 am
- Forum: Creative Recording
- Topic: DIY LA2A and 1176
- Replies: 12
- Views: 10018
[quote="supafuzz"] Just be careful when you build those. There was transformer in and an input circuit that was redundant among other things. [/quote] Yes, there are several options available on the same PCB. You need to know what you want and what you're doing. If in doubt, refer to groupdiy.org - ...
- Sun Oct 19, 2008 9:33 pm
- Forum: Creative Recording
- Topic: Caught the DIY bug
- Replies: 23
- Views: 7121
The GroupDIY forum is probably the best place to start on studio-related DIY electronics:
http://www.prodigy-pro.com/forum/index.php
Jakob E.
http://www.prodigy-pro.com/forum/index.php
Jakob E.
- Sat Jan 05, 2008 1:16 am
- Forum: Creative Recording
- Topic: Neotek Schematics
- Replies: 3
- Views: 1645
- Mon Dec 10, 2007 12:30 am
- Forum: Creative Recording
- Topic: Phonograph preamp DIY - schematic suggestions?
- Replies: 8
- Views: 3202
- Fri Nov 30, 2007 11:39 pm
- Forum: Creative Recording
- Topic: gyraf.dk!???
- Replies: 2
- Views: 1475
- Tue Oct 17, 2006 11:56 pm
- Forum: Creative Recording
- Topic: help with g7 tube mic build
- Replies: 6
- Views: 2520
- Thu Oct 05, 2006 1:49 am
- Forum: Creative Recording
- Topic: Guitar signal splitter
- Replies: 15
- Views: 12090
[quote="brianroth"] I notice that the Gyraf circuit uses the same "common" bias resistor for all four opamps, as I described. 10 Megs seems high me, however. 1 Meg is more typical for the input of a guitar amp. Bri [/quote] Yup - I agree that it looks strange, but real-life tests showed that many - ...
- Tue Apr 18, 2006 4:11 am
- Forum: Creative Recording
- Topic: mod a dbx noisew reduction unit???
- Replies: 5
- Views: 2580
- Sun Jan 08, 2006 6:30 am
- Forum: Creative Recording
- Topic: Audio Cyclopedia
- Replies: 4
- Views: 2272
RDH4, Chapters 1,2 (Introduction to the radio valve) and 5 (Transformers):
http://www.gyraf.dk/schematics/schematics.html
Jakob E.
http://www.gyraf.dk/schematics/schematics.html
Jakob E.
- Sat Dec 31, 2005 12:33 am
- Forum: Creative Recording
- Topic: DIY Mic Preamp
- Replies: 5
- Views: 3400
Gyraf G9/diy - Dual "real" tube micpre with all whistles and bells:
http://www.gyraf.dk/gy_pd/g9/g9pd.htm
Jakob E.
http://www.gyraf.dk/gy_pd/g9/g9pd.htm
Jakob E.
- Tue Dec 20, 2005 4:27 am
- Forum: Creative Recording
- Topic: TV Oscilloscope
- Replies: 11
- Views: 5379
The page says quite clearly: "DO NOT ATTEMPT THIS PROJECT!" And the resulting oscilloscope will be a very poor tool, as a magnetic-deflected tube like a television tube will lack anything resembling linearity at all but the intended working frequencies (50-60Hz Vert, 15-16000Hz Horiz.) Oh, and you'l...