|
Homebrew Equipment A place to show, design and discuss the weird and wonderful electronic creations from the hands of individual members. |
|
Thread Tools |
12th Apr 2007, 9:09 am | #1 |
Retired Dormant Member
Join Date: Dec 2003
Location: Solingen, Germany
Posts: 727
|
homebrew hifi-stereo FM valve tuner
Hi, in 1992 I build this FM-tuner. I found it last time at my parents home.
I took some photos made for you and a scan of the schematic. Maybe it is of interest for those who wants to make one. Kind regards, Darius |
12th Apr 2007, 9:27 am | #2 |
Retired Dormant Member
Join Date: Dec 2003
Location: Solingen, Germany
Posts: 727
|
Re: homebrew hifi-stereo FM valve tuner
additional pics...
Schematics will follow, I have problems with the upload. Kind regards, Darius |
12th Apr 2007, 10:31 am | #3 |
Dekatron
Join Date: Jan 2005
Location: Oxford, UK.
Posts: 17,820
|
Re: homebrew hifi-stereo FM valve tuner
Darius,
That's amazing, it must have taken many, many hours to design and build I like the CRT display. What was the commercial tuner that used a similar arrangement? A Marantz, maybe? I'm sure I have an article about it in a back issue of HiFi World somewhere. Nick. |
12th Apr 2007, 11:04 am | #4 |
Moderator
Join Date: Jun 2003
Location: Oxford, UK
Posts: 27,787
|
Re: homebrew hifi-stereo FM valve tuner
Very nice job Darius. How old were you when you made it?
Why did you decide to label the front panel in English not German? Paul |
12th Apr 2007, 11:17 am | #5 |
Dekatron
Join Date: Jan 2005
Location: Oxford, UK.
Posts: 17,820
|
Re: homebrew hifi-stereo FM valve tuner
|
12th Apr 2007, 11:23 am | #6 |
Moderator
Join Date: Jun 2003
Location: Oxford, UK
Posts: 27,787
|
Re: homebrew hifi-stereo FM valve tuner
|
12th Apr 2007, 11:24 am | #7 |
Dekatron
Join Date: Jan 2005
Location: Oxford, UK.
Posts: 17,820
|
Re: homebrew hifi-stereo FM valve tuner
I think my best efforts were when I was a teenager (lots of enthusiasm and time). It's all been downhill from there
Was the design entirely your own work, Darius? Nick. |
12th Apr 2007, 11:52 am | #8 | |
Retired Dormant Member
Join Date: Dec 2003
Location: Solingen, Germany
Posts: 727
|
Re: homebrew hifi-stereo FM valve tuner
Quote:
as a radio amateur I thaught english labeling is international and modern. (I still think this, but people here often don't.) Hi Nick, yes the design is my work. I have seen this Stereoscope first at the Langenberg FM transmitter (WDR) and I wanted to have one. I am happy to show you the schematic here if I can. I think it is interesting and has some outstanding developments. PM me your email and I can mail it to you. Kind regards, Darius |
|
12th Apr 2007, 7:39 pm | #9 |
Retired Dormant Member
Join Date: Dec 2003
Location: Solingen, Germany
Posts: 727
|
Re: homebrew hifi-stereo FM valve tuner
Good evening,
attached the schematics. Kind regards, Darius |
13th Apr 2007, 11:03 am | #10 |
Retired Dormant Member
Join Date: Dec 2003
Location: Solingen, Germany
Posts: 727
|
Re: homebrew hifi-stereo FM valve tuner
Darius
|
13th Apr 2007, 8:25 pm | #11 |
Dekatron
Join Date: Jan 2004
Location: Newcastle upon Tyne, Tyne & Wear, UK.
Posts: 8,171
|
Re: homebrew hifi-stereo FM valve tuner
Hi Darius, a very interesting circuit, as a technophile I like the 'scope. It would look good using the 1BP1 25mm tube.
Were the coils home made or commercial? Can you supply details please? Best regards, Ed |
14th Apr 2007, 8:19 am | #12 | |
Retired Dormant Member
Join Date: Dec 2003
Location: Solingen, Germany
Posts: 727
|
Re: homebrew hifi-stereo FM valve tuner
Quote:
I bought the DN7-2 and the transformers T1 T2 at a ham flee marked several years before I build the tuner. (This ham flee marked is every early december in Dortmund Westfalenhalle.) The RF- coils are all home made, the coils in the stereo decoder are commercial ferrite coils. The 38KHz filter transformer (plate E(C)F) is a small line frequency transformer. Kind regards, Darius |
|
10th Jan 2008, 9:48 am | #13 | |
Retired Dormant Member
Join Date: Dec 2003
Location: Solingen, Germany
Posts: 727
|
Re: homebrew hifi-stereo FM valve tuner
Quote:
http://ukw-projekt.blogspot.com/2007...ukw-tuner.html thanks, Darius |
|