Telefunken Dacapo 9 part 1 - First look and power-up of this great tube radio.
Telefunken tube radios are up there with the greats as far as quality and reliability is concerned. They were amongst the best tube radios ever built, and are renowned for great sound and sensitivity. This specimen, a Dacapo 9 from 1958, is in quite good condition, so the restoration should be straight-forward. I hope. I hope you will join me in this series, as I go through the steps to restore this masterpiece to pristine condition. Enjoy.
TimeStamps 00:00 Telefunken Dacapo 9 part 1 - First look and power-up of this great tube radio. 00:11 Introduction. 02:03 First look. 07:35 Looking in the back. 12:53 Powering it up for first time. 16:07 Removal from cabinet. 20:45 Conclusion.
Having managed to get the basic tube tester working, it is now time to add more features to it to make it truly useful. Leakage testing, gassy tube detection, higher resolution current measurement, and other small add-ons were obviously required. The one function that I really find useful is the tube selection method. Rather than using the common 'one switch per pin' method for re-directing the signals to the respective tube pins, I decided to try a 'plug and socket' system, which I am really happy with.
Hope you agree.
Enjoy the video.
You can now support the channel:
https://www.patreon.com/mcaldeira
https://paypal.me/macaldeira
______HUNDREDS OF OTHER VIDEOS TO CHOOSE FROM_____
DIY TEST GEAR: The title says it all:
https://www.youtube.com/watch?v=7buNHf6HoDw&list=PLy5M_tA9ux7KkjmWX0I0zNocg6NF33EfL
RESTORATION BUILDING BLOCKS: A series of videos showing detailed steps used the restoration process of tube equipment:
https://www.youtube.com/watch?v=7xvTGd4ysRE&list=PLy5M_tA9ux7JSYx8z2mw303vx287LHpzf
HowTo's: Various videos on some simple techniques and projects:
https://www.youtube.com/watch?v=lgr-J_D6pSU&list=PLy5M_tA9ux7K3B77iUGyLPai3RIvJOrkO
See also playlists on some other completed restoration projects.
PHILIPS BX750A:
https://www.youtube.com/watch?v=i8U9Lteja5o&list=PLy5M_tA9ux7IG6XgctidGO0u0DeT3_CxF
TELEFUNKEN OPUS 2114:
https://www.youtube.com/watch?v=_HO2bjY5vuw&list=PLy5M_tA9ux7LhcZ9h9plfTFmjaM1mcifu
SABA UW-175-Z 3D:
https://www.youtube.com/watch?v=cca4i60ZLw4&list=PLy5M_tA9ux7IWL18nsrSf4RnjsuPjHC-p
GRUNDIG 1070:
https://www.youtube.com/watch?v=i4J5l0fwhko&list=PLy5M_tA9ux7JgnyYPRWOK763aJ8bg3iCI
SCHAUB-LORENZ GOLDY 58 type 3020:
https://www.youtube.com/watch?v=RSbt7qVed78&list=PLy5M_tA9ux7IBse5G--Kl89SPS9sATXfZ
BUSH VHF64:
https://www.youtube.com/watch?v=U--6JymkQ1M&list=PLy5M_tA9ux7KsvN5M48cX6cxN4jSz0s3X
GRUNDIG 3060A:
https://www.youtube.com/watch?v=7x2sK2GSYeE&list=PLy5M_tA9ux7L8e9h8lrHGREPqcgWO-YQm
TELEFUNKEN OPERETTE 8:
https://www.youtube.com/watch?v=5IsACM0mPzs&list=PLy5M_tA9ux7K3SXDv8Hu4uAyl1O7NE5dc
GRAETZ SUPER 171W:
https://www.youtube.com/watch?v=MhG-CH0gqm4&list=PLy5M_tA9ux7IjUykGE8neJSI6GUxMl2YG
LOEWE-OPTA MAGNET 3737W:
https://www.youtube.com/watch?v=ZSZBJ5sKQm8&list=PLy5M_tA9ux7J_hzDhnF8rs2c7wmgGfRlK
BRAUN ATELIER 3:
https://www.youtube.com/playlist?list=PLy5M_tA9ux7L3k5nPRvrk1aH764QRCTqE
LOEWE-OPTA TRUXA STEREO 4741W:
https://www.youtube.com/playlist?list=PLy5M_tA9ux7KhVk0KqPx0Wkh2KO_5f2fQ
GRAETZ COMEDIA 616:
https://www.youtube.com/watch?v=fwmW9k3TwNE&list=PLy5M_tA9ux7L5sAApLzV6xoYzmRNJpMW5
SABA FREIBURG W2:
https://www.youtube.com/playlist?list=PLy5M_tA9ux7IqvS-LshUGpE1D_WY6mrZe
GRAETZ MUSICA 4R417:
https://www.youtube.com/playlist?list=PLy5M_tA9ux7Ios98E59dWjwc2SRJyxwIn
You may also be interested in ...
CAPACITOR LEAKAGE TESTER:
https://www.youtube.com/watch?v=0pySErvzUIY&list=PLy5M_tA9ux7KWexvEjLB0SANSxQXi0zTS
#tuberadios #radiorestoration
...
https://www.youtube.com/watch?v=nVTK-vCky2Q
Only $5 for 10 PCBs and every new member get $5 bonus. + Express 24 hour / 48 hour service on https://www.pcbway.com/ ➠ ➠ ➠ These German tube radios were designed with sound quality in mind, and the way they achieved that is really astounding. That's what I want to go into in this video. The preamp, as simple as it is, is surrounded by a really complex tone shaping network that is a work of art, both in its complexity, and ultimate result.
I hope you enjoy the series, and invite you to comment.
? Other videos in this series:
■ Back to Basics 1 - Tube Radio Anatomy: https://youtu.be/zc4f1m4vXY4
■ Back to Basics 2 - Tube Radio Anatomy: https://youtu.be/DsAmk8WDUdw
■ Back to Basics 3 - Follow the B+: https://youtu.be/mqCPOGqJklw
■ Back to Basics 4 - Testing the power output: https://youtu.be/jNGp_etLzVA
■ Back to Basics 4 - How to safely test the output tube: https://youtu.be/Lt4urvLyieU
? Want to support the channel? ●●●●●●
https://www.patreon.com/mcaldeira
https://paypal.me/macaldeira
#tuberadios #antiqueradio #radiorestoration
●●●● HUNDREDS OF OTHER VIDEOS TO CHOOSE FROM ●●●●
✿ DIY TEST GEAR: The title says it all:
https://www.youtube.com/watch?v=7buNHf6HoDw&list=PLy5M_tA9ux7KkjmWX0I0zNocg6NF33EfL
✿ RESTORATION BUILDING BLOCKS: A series of videos showing detailed steps used the restoration process of tube equipment:
https://www.youtube.com/watch?v=7xvTGd4ysRE&list=PLy5M_tA9ux7JSYx8z2mw303vx287LHpzf
✿ HowTo's: Various videos on some simple techniques and projects:
https://www.youtube.com/watch?v=lgr-J_D6pSU&list=PLy5M_tA9ux7K3B77iUGyLPai3RIvJOrkO
✿ DIY CAPACITOR LEAKAGE TESTER PROJECT: One of the most viewed projects on my channel, with full design description and build instructions.
https://www.youtube.com/watch?v=0pySErvzUIY&list=PLy5M_tA9ux7KWexvEjLB0SANSxQXi0zTS
✿ DIY TUBE TESTER PROJECT: Complete design description and build instructions for this really handy device.
https://youtu.be/3fCE4uaw_cU?si=BhCnTKKN2NQUDe6v
●●●● Plus full Playlists on some other completed restoration projects on this Channel ●●●●
? PHILIPS BX750A:
https://www.youtube.com/watch?v=i8U9Lteja5o&list=PLy5M_tA9ux7IG6XgctidGO0u0DeT3_CxF
? TELEFUNKEN OPUS 2114:
https://www.youtube.com/watch?v=_HO2bjY5vuw&list=PLy5M_tA9ux7LhcZ9h9plfTFmjaM1mcifu
? SABA UW-175-Z 3D:
https://www.youtube.com/watch?v=cca4i60ZLw4&list=PLy5M_tA9ux7IWL18nsrSf4RnjsuPjHC-p
? GRUNDIG 1070:
https://www.youtube.com/watch?v=i4J5l0fwhko&list=PLy5M_tA9ux7JgnyYPRWOK763aJ8bg3iCI
? SCHAUB-LORENZ GOLDY 58 type 3020:
https://www.youtube.com/watch?v=RSbt7qVed78&list=PLy5M_tA9ux7IBse5G--Kl89SPS9sATXfZ
? BUSH VHF64:
https://www.youtube.com/watch?v=U--6JymkQ1M&list=PLy5M_tA9ux7KsvN5M48cX6cxN4jSz0s3X
? GRUNDIG 3060A:
https://www.youtube.com/watch?v=7x2sK2GSYeE&list=PLy5M_tA9ux7L8e9h8lrHGREPqcgWO-YQm
? TELEFUNKEN OPERETTE 8:
https://www.youtube.com/watch?v=5IsACM0mPzs&list=PLy5M_tA9ux7K3SXDv8Hu4uAyl1O7NE5dc
? GRAETZ SUPER 171W:
https://www.youtube.com/watch?v=MhG-CH0gqm4&list=PLy5M_tA9ux7IjUykGE8neJSI6GUxMl2YG
? LOEWE-OPTA MAGNET 3737W:
https://www.youtube.com/watch?v=ZSZBJ5sKQm8&list=PLy5M_tA9ux7J_hzDhnF8rs2c7wmgGfRlK
? BRAUN ATELIER 3:
https://www.youtube.com/playlist?list=PLy5M_tA9ux7L3k5nPRvrk1aH764QRCTqE
? LOEWE-OPTA TRUXA STEREO 4741W:
https://www.youtube.com/playlist?list=PLy5M_tA9ux7KhVk0KqPx0Wkh2KO_5f2fQ
? GRAETZ COMEDIA 616:
https://www.youtube.com/watch?v=fwmW9k3TwNE&list=PLy5M_tA9ux7L5sAApLzV6xoYzmRNJpMW5
? SABA FREIBURG W2:
https://www.youtube.com/playlist?list=PLy5M_tA9ux7IqvS-LshUGpE1D_WY6mrZe
? GRAETZ MUSICA 4R417:
https://www.youtube.com/playlist?list=PLy5M_tA9ux7Ios98E59dWjwc2SRJyxwIn
...
https://www.youtube.com/watch?v=CeeHvPOrDSs
Philips BX626 tube radio restoration - Part 2
A few corrections are done due to erroneous conclusions during the first video.
The power transformer and output transfer are tested, and filter caps are changed.
A look at the schematic is also a good idea.
Moving on ...
Full info on this radio at:
https://www.radiomuseum.org/r/philips_bx626z.html?language_id=2
You can see the playlist for this series restoration at:
https://www.youtube.com/watch?v=ivqt5OBex_I&list=PLy5M_tA9ux7K813k81En1mGSyDvS6wQT-
See a series of 'Restoration Building Blocks' videos on detailed steps in the restoration process:
https://www.youtube.com/watch?v=7xvTGd4ysRE&list=PLy5M_tA9ux7JSYx8z2mw303vx287LHpzf
See also playlists on some other completed restoration projects.
PHILIPS BX750A:
https://www.youtube.com/watch?v=i8U9Lteja5o&list=PLy5M_tA9ux7IG6XgctidGO0u0DeT3_CxF
TELEFUNKEN OPUS 2114:
https://www.youtube.com/watch?v=_HO2bjY5vuw&list=PLy5M_tA9ux7LhcZ9h9plfTFmjaM1mcifu
SABA UW-175-Z 3D:
https://www.youtube.com/watch?v=cca4i60ZLw4&list=PLy5M_tA9ux7IWL18nsrSf4RnjsuPjHC-p
GRUNDIG 1070:
https://www.youtube.com/watch?v=i4J5l0fwhko&list=PLy5M_tA9ux7JgnyYPRWOK763aJ8bg3iCI
SCHAUB-LORENZ GOLDY 58 type 3020:
https://www.youtube.com/watch?v=RSbt7qVed78&list=PLy5M_tA9ux7IBse5G--Kl89SPS9sATXfZ
BUSH VHF64:
https://www.youtube.com/watch?v=U--6JymkQ1M&list=PLy5M_tA9ux7KsvN5M48cX6cxN4jSz0s3X
GRUNDIG 3060A:
https://www.youtube.com/watch?v=7x2sK2GSYeE&list=PLy5M_tA9ux7L8e9h8lrHGREPqcgWO-YQm
TELEFUNKEN OPERETTE 8:
https://www.youtube.com/watch?v=5IsACM0mPzs&list=PLy5M_tA9ux7K3SXDv8Hu4uAyl1O7NE5dc
GRAETZ SUPER 171W:
https://www.youtube.com/watch?v=MhG-CH0gqm4&list=PLy5M_tA9ux7IjUykGE8neJSI6GUxMl2YG
LOEWE-OPTA MAGNET 3737W:
https://www.youtube.com/watch?v=ZSZBJ5sKQm8&list=PLy5M_tA9ux7J_hzDhnF8rs2c7wmgGfRlK
BRAUN ATELIER 3:
https://www.youtube.com/playlist?list=PLy5M_tA9ux7L3k5nPRvrk1aH764QRCTqE
LOEWE-OPTA TRUXA STEREO 4741W:
https://www.youtube.com/playlist?list=PLy5M_tA9ux7KhVk0KqPx0Wkh2KO_5f2fQ
GRAETZ COMEDIA 616:
https://www.youtube.com/watch?v=fwmW9k3TwNE&list=PLy5M_tA9ux7L5sAApLzV6xoYzmRNJpMW5
SABA FREIBURG W2:
https://www.youtube.com/playlist?list=PLy5M_tA9ux7IqvS-LshUGpE1D_WY6mrZe
GRAETZ MUSICA 4R417:
https://www.youtube.com/playlist?list=PLy5M_tA9ux7Ios98E59dWjwc2SRJyxwIn
You may also be interested in ...
CAPACITOR LEAKAGE TESTER:
https://www.youtube.com/watch?v=0pySErvzUIY&list=PLy5M_tA9ux7KWexvEjLB0SANSxQXi0zTS
...
https://www.youtube.com/watch?v=V6Ubre_sLPY
The FM alignment is not complete without checking the RF alignment of the radio. I was fairly confident that it was accurate, but as usual I wanted to extend the FM range to receive one of my favourite stations at 101.6MHz. This radio only goes up to 100MHz, as was normal in its day, so a little trickery is needed.
The auto tuning also has alignment requirements for FM, so those are covered as well.
Hope you enjoy the video.
You can now support the channel:
https://www.patreon.com/mcaldeira
https://paypal.me/macaldeira
TimeStamps
00:00 SABA Breisgau 8 pt. 10B. Completing the FM alignments, and extending FM band above available 100MHz.
00:11 Introduction.
00:50 Final step of the IF alignment, AM rejection.
04:58 Tuning motor alignment.
08:30 RF alignment.
16:28 Extending the FM tuning range.
25:44 Testing FM.
28:35 Closing.
#tuberadios #antiqueradio #radiorestoration
______HUNDREDS OF OTHER VIDEOS TO CHOOSE FROM_____
DIY TEST GEAR: The title says it all:
https://www.youtube.com/watch?v=7buNHf6HoDw&list=PLy5M_tA9ux7KkjmWX0I0zNocg6NF33EfL
RESTORATION BUILDING BLOCKS: A series of videos showing detailed steps used the restoration process of tube equipment:
https://www.youtube.com/watch?v=7xvTGd4ysRE&list=PLy5M_tA9ux7JSYx8z2mw303vx287LHpzf
HowTo's: Various videos on some simple techniques and projects:
https://www.youtube.com/watch?v=lgr-J_D6pSU&list=PLy5M_tA9ux7K3B77iUGyLPai3RIvJOrkO
See also playlists on some other completed restoration projects.
PHILIPS BX750A:
https://www.youtube.com/watch?v=i8U9Lteja5o&list=PLy5M_tA9ux7IG6XgctidGO0u0DeT3_CxF
TELEFUNKEN OPUS 2114:
https://www.youtube.com/watch?v=_HO2bjY5vuw&list=PLy5M_tA9ux7LhcZ9h9plfTFmjaM1mcifu
SABA UW-175-Z 3D:
https://www.youtube.com/watch?v=cca4i60ZLw4&list=PLy5M_tA9ux7IWL18nsrSf4RnjsuPjHC-p
GRUNDIG 1070:
https://www.youtube.com/watch?v=i4J5l0fwhko&list=PLy5M_tA9ux7JgnyYPRWOK763aJ8bg3iCI
SCHAUB-LORENZ GOLDY 58 type 3020:
https://www.youtube.com/watch?v=RSbt7qVed78&list=PLy5M_tA9ux7IBse5G--Kl89SPS9sATXfZ
BUSH VHF64:
https://www.youtube.com/watch?v=U--6JymkQ1M&list=PLy5M_tA9ux7KsvN5M48cX6cxN4jSz0s3X
GRUNDIG 3060A:
https://www.youtube.com/watch?v=7x2sK2GSYeE&list=PLy5M_tA9ux7L8e9h8lrHGREPqcgWO-YQm
TELEFUNKEN OPERETTE 8:
https://www.youtube.com/watch?v=5IsACM0mPzs&list=PLy5M_tA9ux7K3SXDv8Hu4uAyl1O7NE5dc
GRAETZ SUPER 171W:
https://www.youtube.com/watch?v=MhG-CH0gqm4&list=PLy5M_tA9ux7IjUykGE8neJSI6GUxMl2YG
LOEWE-OPTA MAGNET 3737W:
https://www.youtube.com/watch?v=ZSZBJ5sKQm8&list=PLy5M_tA9ux7J_hzDhnF8rs2c7wmgGfRlK
BRAUN ATELIER 3:
https://www.youtube.com/playlist?list=PLy5M_tA9ux7L3k5nPRvrk1aH764QRCTqE
LOEWE-OPTA TRUXA STEREO 4741W:
https://www.youtube.com/playlist?list=PLy5M_tA9ux7KhVk0KqPx0Wkh2KO_5f2fQ
GRAETZ COMEDIA 616:
https://www.youtube.com/watch?v=fwmW9k3TwNE&list=PLy5M_tA9u
...
https://www.youtube.com/watch?v=eSnMhqrRtb8
I aways get to the end of a restoration project with mixed feelings: satisfaction for the job done, but mingled with some regret that the process is actually over. However, that is the goal - getting these fantastic radios back into full working order and into daily use.
This video completes the various outstanding tasks of this restoration, like the RF alignment of the SW3-10 bands, cosmetic repair, and finally, the testing.
I also added a short clip of SSB decoding with my external BFO, a project that was inspired by the Grundig Satellit 2100 that I restored previously. It works really, really well.
Enjoy the video.
More info on this model:
https://www.radiomuseum.org/r/grundig_satellit_2100.html
You can now support the channel:
https://www.patreon.com/mcaldeira
https://paypal.me/macaldeira
______HUNDREDS OF OTHER VIDEOS TO CHOOSE FROM_____
DIY TEST GEAR: The title says it all:
https://www.youtube.com/watch?v=7buNHf6HoDw&list=PLy5M_tA9ux7KkjmWX0I0zNocg6NF33EfL
RESTORATION BUILDING BLOCKS: A series of videos showing detailed steps used the restoration process of tube equipment:
https://www.youtube.com/watch?v=7xvTGd4ysRE&list=PLy5M_tA9ux7JSYx8z2mw303vx287LHpzf
HowTo's: Various videos on some simple techniques and projects:
https://www.youtube.com/watch?v=lgr-J_D6pSU&list=PLy5M_tA9ux7K3B77iUGyLPai3RIvJOrkO
See also playlists on some other completed restoration projects.
PHILIPS BX750A:
https://www.youtube.com/watch?v=i8U9Lteja5o&list=PLy5M_tA9ux7IG6XgctidGO0u0DeT3_CxF
TELEFUNKEN OPUS 2114:
https://www.youtube.com/watch?v=_HO2bjY5vuw&list=PLy5M_tA9ux7LhcZ9h9plfTFmjaM1mcifu
SABA UW-175-Z 3D:
https://www.youtube.com/watch?v=cca4i60ZLw4&list=PLy5M_tA9ux7IWL18nsrSf4RnjsuPjHC-p
GRUNDIG 1070:
https://www.youtube.com/watch?v=i4J5l0fwhko&list=PLy5M_tA9ux7JgnyYPRWOK763aJ8bg3iCI
SCHAUB-LORENZ GOLDY 58 type 3020:
https://www.youtube.com/watch?v=RSbt7qVed78&list=PLy5M_tA9ux7IBse5G--Kl89SPS9sATXfZ
BUSH VHF64:
https://www.youtube.com/watch?v=U--6JymkQ1M&list=PLy5M_tA9ux7KsvN5M48cX6cxN4jSz0s3X
GRUNDIG 3060A:
https://www.youtube.com/watch?v=7x2sK2GSYeE&list=PLy5M_tA9ux7L8e9h8lrHGREPqcgWO-YQm
TELEFUNKEN OPERETTE 8:
https://www.youtube.com/watch?v=5IsACM0mPzs&list=PLy5M_tA9ux7K3SXDv8Hu4uAyl1O7NE5dc
GRAETZ SUPER 171W:
https://www.youtube.com/watch?v=MhG-CH0gqm4&list=PLy5M_tA9ux7IjUykGE8neJSI6GUxMl2YG
LOEWE-OPTA MAGNET 3737W:
https://www.youtube.com/watch?v=ZSZBJ5sKQm8&list=PLy5M_tA9ux7J_hzDhnF8rs2c7wmgGfRlK
BRAUN ATELIER 3:
https://www.youtube.com/playlist?list=PLy5M_tA9ux7L3k5nPRvrk1aH764QRCTqE
LOEWE-OPTA TRUXA STEREO 4741W:
https://www.youtube.com/playlist?list=PLy5M_tA9ux7KhVk0KqPx0Wkh2KO_5f2fQ
GRAETZ COMEDIA 616:
https://www.youtube.com/watch?v=fwmW9k3TwNE&list=PLy5M_tA9ux7L5sAApLzV6xoYzmRNJpMW5
SABA FREIBURG W2:
https://www.youtube.com/playlis
...
https://www.youtube.com/watch?v=kShq_mcqpAU
Blaupunkt Arkansas stereo tube radio restoration - Part 5
Once again we come to the end of another project, which I've really enjoyed.
This one goes into the hands of a professional art restorer, so it better be good.
The reception test speaks for itself. A great set.
Full info on this radio at:
http://www.radiomuseum-bocket.de/wiki/index.php/Blaupunkt_Arkansas_43400
You can see the playlist for this series restoration at:
https://www.youtube.com/watch?v=8TuEln5S7rU&list=PLy5M_tA9ux7L9lBDhGrk6wDHWJT2-eFKt
See a series of 'Restoration Building Blocks' videos on detailed steps in the restoration process:
https://www.youtube.com/watch?v=7xvTGd4ysRE&list=PLy5M_tA9ux7JSYx8z2mw303vx287LHpzf
See also playlists on some other completed restoration projects.
PHILIPS BX750A:
https://www.youtube.com/watch?v=i8U9Lteja5o&list=PLy5M_tA9ux7IG6XgctidGO0u0DeT3_CxF
TELEFUNKEN OPUS 2114:
https://www.youtube.com/watch?v=_HO2bjY5vuw&list=PLy5M_tA9ux7LhcZ9h9plfTFmjaM1mcifu
SABA UW-175-Z 3D:
https://www.youtube.com/watch?v=cca4i60ZLw4&list=PLy5M_tA9ux7IWL18nsrSf4RnjsuPjHC-p
GRUNDIG 1070:
https://www.youtube.com/watch?v=i4J5l0fwhko&list=PLy5M_tA9ux7JgnyYPRWOK763aJ8bg3iCI
SCHAUB-LORENZ GOLDY 58 type 3020:
https://www.youtube.com/watch?v=RSbt7qVed78&list=PLy5M_tA9ux7IBse5G--Kl89SPS9sATXfZ
BUSH VHF64:
https://www.youtube.com/watch?v=U--6JymkQ1M&list=PLy5M_tA9ux7KsvN5M48cX6cxN4jSz0s3X
GRUNDIG 3060A:
https://www.youtube.com/watch?v=7x2sK2GSYeE&list=PLy5M_tA9ux7L8e9h8lrHGREPqcgWO-YQm
TELEFUNKEN OPERETTE 8:
https://www.youtube.com/watch?v=5IsACM0mPzs&list=PLy5M_tA9ux7K3SXDv8Hu4uAyl1O7NE5dc
GRAETZ SUPER 171W:
https://www.youtube.com/watch?v=MhG-CH0gqm4&list=PLy5M_tA9ux7IjUykGE8neJSI6GUxMl2YG
LOEWE-OPTA MAGNET 3737W:
https://www.youtube.com/watch?v=ZSZBJ5sKQm8&list=PLy5M_tA9ux7J_hzDhnF8rs2c7wmgGfRlK
BRAUN ATELIER 3:
https://www.youtube.com/playlist?list=PLy5M_tA9ux7L3k5nPRvrk1aH764QRCTqE
LOEWE-OPTA TRUXA STEREO 4741W:
https://www.youtube.com/playlist?list=PLy5M_tA9ux7KhVk0KqPx0Wkh2KO_5f2fQ
GRAETZ COMEDIA 616:
https://www.youtube.com/watch?v=fwmW9k3TwNE&list=PLy5M_tA9ux7L5sAApLzV6xoYzmRNJpMW5
SABA FREIBURG W2:
https://www.youtube.com/playlist?list=PLy5M_tA9ux7IqvS-LshUGpE1D_WY6mrZe
GRAETZ MUSICA 4R417:
https://www.youtube.com/playlist?list=PLy5M_tA9ux7Ios98E59dWjwc2SRJyxwIn
You may also be interested in ...
CAPACITOR LEAKAGE TESTER:
https://www.youtube.com/watch?v=0pySErvzUIY&list=PLy5M_tA9ux7KWexvEjLB0SANSxQXi0zTS
...
https://www.youtube.com/watch?v=7UGkNAHU1N8
The preamp now needs attention. I'm anxious to get to the point of being able to test the entire audio circuit. We're almost there.
You can now support the channel:
https://www.patreon.com/mcaldeira https://paypal.me/macaldeira
#tuberadios #antiqueradio #radiorestoration
Full info on this model at:
https://www.radiomuseum.org/r/braun_regie_450s_cev450scev_450.html
_____________________________________________________________
DIY TEST GEAR: The title says it all:
https://www.youtube.com/watch?v=7buNHf6HoDw&list=PLy5M_tA9ux7KkjmWX0I0zNocg6NF33EfL
RESTORATION BUILDING BLOCKS: A series of videos showing detailed steps used the restoration process of tube equipment:
https://www.youtube.com/watch?v=7xvTGd4ysRE&list=PLy5M_tA9ux7JSYx8z2mw303vx287LHpzf
HowTo's: Various videos on some simple techniques and projects:
https://www.youtube.com/watch?v=lgr-J_D6pSU&list=PLy5M_tA9ux7K3B77iUGyLPai3RIvJOrkO
See also playlists on some other completed restoration projects.
PHILIPS BX750A:
https://www.youtube.com/watch?v=i8U9Lteja5o&list=PLy5M_tA9ux7IG6XgctidGO0u0DeT3_CxF
TELEFUNKEN OPUS 2114:
https://www.youtube.com/watch?v=_HO2bjY5vuw&list=PLy5M_tA9ux7LhcZ9h9plfTFmjaM1mcifu
SABA UW-175-Z 3D:
https://www.youtube.com/watch?v=cca4i60ZLw4&list=PLy5M_tA9ux7IWL18nsrSf4RnjsuPjHC-p
GRUNDIG 1070:
https://www.youtube.com/watch?v=i4J5l0fwhko&list=PLy5M_tA9ux7JgnyYPRWOK763aJ8bg3iCI
SCHAUB-LORENZ GOLDY 58 type 3020:
https://www.youtube.com/watch?v=RSbt7qVed78&list=PLy5M_tA9ux7IBse5G--Kl89SPS9sATXfZ
BUSH VHF64:
https://www.youtube.com/watch?v=U--6JymkQ1M&list=PLy5M_tA9ux7KsvN5M48cX6cxN4jSz0s3X
GRUNDIG 3060A:
https://www.youtube.com/watch?v=7x2sK2GSYeE&list=PLy5M_tA9ux7L8e9h8lrHGREPqcgWO-YQm
TELEFUNKEN OPERETTE 8:
https://www.youtube.com/watch?v=5IsACM0mPzs&list=PLy5M_tA9ux7K3SXDv8Hu4uAyl1O7NE5dc
GRAETZ SUPER 171W:
https://www.youtube.com/watch?v=MhG-CH0gqm4&list=PLy5M_tA9ux7IjUykGE8neJSI6GUxMl2YG
LOEWE-OPTA MAGNET 3737W:
https://www.youtube.com/watch?v=ZSZBJ5sKQm8&list=PLy5M_tA9ux7J_hzDhnF8rs2c7wmgGfRlK
BRAUN ATELIER 3:
https://www.youtube.com/playlist?list=PLy5M_tA9ux7L3k5nPRvrk1aH764QRCTqE
LOEWE-OPTA TRUXA STEREO 4741W:
https://www.youtube.com/playlist?list=PLy5M_tA9ux7KhVk0KqPx0Wkh2KO_5f2fQ
GRAETZ COMEDIA 616:
https://www.youtube.com/watch?v=fwmW9k3TwNE&list=PLy5M_tA9ux7L5sAApLzV6xoYzmRNJpMW5
SABA FREIBURG W2:
https://www.youtube.com/playlist?list=PLy5M_tA9ux7IqvS-LshUGpE1D_WY6mrZe
GRAETZ MUSICA 4R417:
https://www.youtube.com/playlist?list=PLy5M_tA9ux7Ios98E59dWjwc2SRJyxwIn
You may also be interested in ...
CAPACITOR LEAKAGE TESTER:
https://www.youtube.com/watch?v=0pySErvzUIY&list=PLy5M_tA9ux7KWexvEjLB0SANSxQXi0zTS
...
https://www.youtube.com/watch?v=zcMdRfmRJJs
I recently restored a vintage tape head preamplifier, the Magnecorder PT6V, which was a great experience for me. However, that preamplifier does absolutely nothing without the tape head, and now we have one. This one is not an exact match for that device, but with a little experimentation, it should work quite well.
Enjoy the video.
You can now support the channel:
https://www.patreon.com/mcaldeira
https://paypal.me/macaldeira
TimeStamps
00:00 A relic tape recorder. Magnecord P75A restoration.
00:12 Introduction.
02:45 First look.
04:15 A look inside.
08:04 Opening it up.
09:45 A look at the service manual.
13:22 The first report back - magic caps.
17:28 The second report back.
19:47 Closing.
#tuberadios #antiqueradio #radiorestoration
______HUNDREDS OF OTHER VIDEOS TO CHOOSE FROM_____
DIY TEST GEAR: The title says it all:
https://www.youtube.com/watch?v=7buNHf6HoDw&list=PLy5M_tA9ux7KkjmWX0I0zNocg6NF33EfL
RESTORATION BUILDING BLOCKS: A series of videos showing detailed steps used the restoration process of tube equipment:
https://www.youtube.com/watch?v=7xvTGd4ysRE&list=PLy5M_tA9ux7JSYx8z2mw303vx287LHpzf
HowTo's: Various videos on some simple techniques and projects:
https://www.youtube.com/watch?v=lgr-J_D6pSU&list=PLy5M_tA9ux7K3B77iUGyLPai3RIvJOrkO
See also playlists on some other completed restoration projects.
PHILIPS BX750A:
https://www.youtube.com/watch?v=i8U9Lteja5o&list=PLy5M_tA9ux7IG6XgctidGO0u0DeT3_CxF
TELEFUNKEN OPUS 2114:
https://www.youtube.com/watch?v=_HO2bjY5vuw&list=PLy5M_tA9ux7LhcZ9h9plfTFmjaM1mcifu
SABA UW-175-Z 3D:
https://www.youtube.com/watch?v=cca4i60ZLw4&list=PLy5M_tA9ux7IWL18nsrSf4RnjsuPjHC-p
GRUNDIG 1070:
https://www.youtube.com/watch?v=i4J5l0fwhko&list=PLy5M_tA9ux7JgnyYPRWOK763aJ8bg3iCI
SCHAUB-LORENZ GOLDY 58 type 3020:
https://www.youtube.com/watch?v=RSbt7qVed78&list=PLy5M_tA9ux7IBse5G--Kl89SPS9sATXfZ
BUSH VHF64:
https://www.youtube.com/watch?v=U--6JymkQ1M&list=PLy5M_tA9ux7KsvN5M48cX6cxN4jSz0s3X
GRUNDIG 3060A:
https://www.youtube.com/watch?v=7x2sK2GSYeE&list=PLy5M_tA9ux7L8e9h8lrHGREPqcgWO-YQm
TELEFUNKEN OPERETTE 8:
https://www.youtube.com/watch?v=5IsACM0mPzs&list=PLy5M_tA9ux7K3SXDv8Hu4uAyl1O7NE5dc
GRAETZ SUPER 171W:
https://www.youtube.com/watch?v=MhG-CH0gqm4&list=PLy5M_tA9ux7IjUykGE8neJSI6GUxMl2YG
LOEWE-OPTA MAGNET 3737W:
https://www.youtube.com/watch?v=ZSZBJ5sKQm8&list=PLy5M_tA9ux7J_hzDhnF8rs2c7wmgGfRlK
BRAUN ATELIER 3:
https://www.youtube.com/playlist?list=PLy5M_tA9ux7L3k5nPRvrk1aH764QRCTqE
LOEWE-OPTA TRUXA STEREO 4741W:
https://www.youtube.com/playlist?list=PLy5M_tA9ux7KhVk0KqPx0Wkh2KO_5f2fQ
GRAETZ COMEDIA 616:
https://www.youtube.com/watch?v=fwmW9k3TwNE&list=PLy5M_tA9ux7L5sAApLzV6xoYzmRNJpMW5
SABA FREIBURG W2:
https://www.youtube.com/playlist?list=PLy5M_tA9ux7IqvS-LshUGpE1D_WY6mrZe
GRAETZ MUSICA
...
https://www.youtube.com/watch?v=bf89k-RsBP8
The audio section if this Grundig 4006 Stereo is very interesting, so I decided to see how it ticks using my customary Adobe graphical tool (my secret sauce ?).
I follow the audio signal all the way from the pickup input, through all the switching options, to the three output transformers producing the sound. These are unusual in that two are single-ended and one is a push-pull, with the two EL95 power tubes managing this weird combination beautifully.
One of the reasons I love this hobby is that I always have the opportunity to learn something new, and this Grundig 4006 is rich in learning possibilities.
I hope you get something out of it (even if it’s only a cure for insomnia).
You can now support the channel:
https://www.patreon.com/mcaldeira
https://paypal.me/macaldeira
Full info on this model at:
https://www.radiomuseum.org/r/grundig_konzertgeraet_4006_stereo.html
#tuberadios #antiqueradio #radiorestoration
______HUNDREDS OF VIDEOS TO CHOOSE FROM_____
DIY TEST GEAR: The title says it all:
https://www.youtube.com/watch?v=7buNHf6HoDw&list=PLy5M_tA9ux7KkjmWX0I0zNocg6NF33EfL
RESTORATION BUILDING BLOCKS: A series of videos showing detailed steps used the restoration process of tube equipment:
https://www.youtube.com/watch?v=7xvTGd4ysRE&list=PLy5M_tA9ux7JSYx8z2mw303vx287LHpzf
HowTo's: Various videos on some simple techniques and projects:
https://www.youtube.com/watch?v=lgr-J_D6pSU&list=PLy5M_tA9ux7K3B77iUGyLPai3RIvJOrkO
See also complete playlists on other completed restoration projects. Here are some, but not all ...
PHILIPS BX750A:
https://www.youtube.com/watch?v=i8U9Lteja5o&list=PLy5M_tA9ux7IG6XgctidGO0u0DeT3_CxF
TELEFUNKEN OPUS 2114:
https://www.youtube.com/watch?v=_HO2bjY5vuw&list=PLy5M_tA9ux7LhcZ9h9plfTFmjaM1mcifu
SABA UW-175-Z 3D:
https://www.youtube.com/watch?v=cca4i60ZLw4&list=PLy5M_tA9ux7IWL18nsrSf4RnjsuPjHC-p
GRUNDIG 1070:
https://www.youtube.com/watch?v=i4J5l0fwhko&list=PLy5M_tA9ux7JgnyYPRWOK763aJ8bg3iCI
SCHAUB-LORENZ GOLDY 58 type 3020:
https://www.youtube.com/watch?v=RSbt7qVed78&list=PLy5M_tA9ux7IBse5G--Kl89SPS9sATXfZ
BUSH VHF64:
https://www.youtube.com/watch?v=U--6JymkQ1M&list=PLy5M_tA9ux7KsvN5M48cX6cxN4jSz0s3X
GRUNDIG 3060A:
https://www.youtube.com/watch?v=7x2sK2GSYeE&list=PLy5M_tA9ux7L8e9h8lrHGREPqcgWO-YQm
TELEFUNKEN OPERETTE 8:
https://www.youtube.com/watch?v=5IsACM0mPzs&list=PLy5M_tA9ux7K3SXDv8Hu4uAyl1O7NE5dc
GRAETZ SUPER 171W:
https://www.youtube.com/watch?v=MhG-CH0gqm4&list=PLy5M_tA9ux7IjUykGE8neJSI6GUxMl2YG
LOEWE-OPTA MAGNET 3737W:
https://www.youtube.com/watch?v=ZSZBJ5sKQm8&list=PLy5M_tA9ux7J_hzDhnF8rs2c7wmgGfRlK
BRAUN ATELIER 3:
https://www.youtube.com/playlist?list=PLy5M_tA9ux7L3k5nPRvrk1aH764QRCTqE
LOEWE-OPTA TRUXA STEREO 4741W:
https://www.youtube.com/playlist?list=PLy5M_tA9ux7KhVk0KqPx0Wkh2KO_5
...
https://www.youtube.com/watch?v=i_uhmOnOqzc