Love these old 50's vintage German radios, I have an old Grundig that is still in good working order after some replacement caps and a tube. The sound quality is remarkably good for a table radio and it always draws attention when visitors hear and see it working. Nice repair job on the original switch, having it working as designed is a big plus. Thank you again for sharing these always interesting an informative videos.
@worldwideinformation30004 жыл бұрын
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@robertrainey1728 Жыл бұрын
Very nice restoration Peter.
@dinosworkshop68705 жыл бұрын
Very nice project ! Merry Christmas. Thanks for all your contributions this year.
@TRXLab5 жыл бұрын
Thank you Dino and Happy new year
@dinosworkshop68704 жыл бұрын
A really good job! This is a terrfic view of how radios were so nice to listen to the music of tubes. We do not have that today.Super great fix by peter. Thanks for the fantastic tutorial.
@injoelsgarage39345 жыл бұрын
Nicely done Peter. Another fine tube radio back to life. Thank you for sharing. Merry Christmas. Joel
@TRXLab5 жыл бұрын
Thanks for watching Joel and Merry Christmas
@michaelclutton84465 жыл бұрын
Thanks Peter, really enjoyed watching your work on this fine old radio regards Mike
@TRXLab5 жыл бұрын
Glad that you like the video Michael! Thanks for stopping in.
@bobkozlarekwa2sqq595 жыл бұрын
Nice job. I personally find restoring old radios very rewarding. Merry Christmas!
@TRXLab5 жыл бұрын
Absolutely agreed Bob it is very rewarding! Thanks for comment and Merry Christmas
@budandbean15 жыл бұрын
Thank you so much, I adore tube radios and radio restoration. This is a wonderful radio too, love to find one like this for my collection. I also wanted to add, thank you for the wonderful troubleshooting tutorial and explanation of this radios schematic. It’s always so nice to hear a real expert explain circuitry as you always do. I always pick up little tips and tricks from you. Buddy
@TRXLab5 жыл бұрын
Thanks for the kind feed back very much appreciated.. All the best
@waynethompson84164 жыл бұрын
An interesting video. I myself love old Vacuum Tube radios. When you showed the inside from the back of the radio, I was amazed at how clean it was...ok, so there was a bit of dust, but no rusting, no pitting, it looked good! The warranty card brought a smile to my face. The date was my 3rd birthday!!! When you showed the underside of the radio, I was wondering what the green springs were....then I finally realized they were inductors. Your work on the power switch was amazing! Genuine talent there!
@TheRadioShop5 жыл бұрын
Very nice to see you repair a vintage set like this Peter. Great job my friend!
@TRXLab5 жыл бұрын
Thanks for stepping in my friend. Have a wonderful season holiday and Merry Christmas
@rscelectrical70915 жыл бұрын
Excellent work Peter, restoring valve Radio's is one of my favourite jobs. There's nothing else like the sound that comes from a properly restored & aligned valve set. Merry Christmas buddy.
@TRXLab5 жыл бұрын
Yeah always fun to work with :-) Merry Christmas!
@zinkzoyd5 жыл бұрын
Good work peter, You can't beat the sound of those old valve radios.
@TRXLab5 жыл бұрын
Yes you are right tube sound is simply awesome..Thanks for watching
@MrKelendros5 жыл бұрын
A nice radio Peter and a great brand (telefunken). I had a telefunken TV at home when I was a child. Very very nice German brand. Thx for sharing this video
@TRXLab5 жыл бұрын
Thanks for watching Carlos
@robertcalkjr.83255 жыл бұрын
Nice job, Peter! Thanks. Merry Christmas and Happy New Year!
@TRXLab5 жыл бұрын
Thanks Robert. Merry Christmas and Happy New Year
@lyntonprescott34125 жыл бұрын
Fabulous video. You have so much knowledge about radios old and new. Well done with the switch! A difficult repair but all too common with these old radios. I am very new to the repair of old valve and transistor radios but I find it very interesting and challenging to overcome the problems that they have. You have a fabulous workshop filled with wonderful equipment and I have only a cold shed and a voltmeter! But I enjoy every minute that I spend working with all kinds of radios. I look forward to seeing many more of your videos. Congratulations on your command of English as you are so easy to understand. Best wishes from The UK. Lynton G4XCQ.
@TRXLab5 жыл бұрын
Thanks for the kind feed back Lynton very much appreciated! 73
@grantfullen95595 жыл бұрын
Great work Peter. I love the old boat anchor gear :) Mery X-Mas to you and your family . 73s
@TRXLab5 жыл бұрын
Hey Grant good to see you hope you are doing well. Merry Christmas and a Happy New Year to you and yours.
@rubusroo685 жыл бұрын
not often we see you work on stuff like this hope you have a great xmas & thanks for all the wonderful content!
@TRXLab5 жыл бұрын
Thanks for watching and Merry Christmas
@BobMellor19545 жыл бұрын
Hi Peter, thank you, great video. Merry Christmas to you and your Family, Regards Bob 73's
@TRXLab5 жыл бұрын
Thank you Bob and Merry Christmas to you and yours..73s
@vk6op6485 жыл бұрын
Enjoyed this. Thanks and have a good Christmas.
@TRXLab5 жыл бұрын
Thanks for watching an Merry Christmas
@HarvardBob5 жыл бұрын
Hi Peter, Love your electronic detective stories. It’s very enjoyable following your thorough analysis. One thing I would really like to see is some of the mechanical hands-on techniques replacing a couple of the deeply buried capacitors in the forest of wiring. There is a lot we could learn from that. The improvisation and detail in reconstructing the volume-power switch is very useful.
@TRXLab5 жыл бұрын
Thanks for feed-back Bob. I'm going to put more of that into future videos. Have a nice week end
@maninthevan535 жыл бұрын
awesome job on keeping its vintage look, lots of patience too lol
@TRXLab5 жыл бұрын
Thanks for watching
@hancecrawford5 жыл бұрын
well restored radio you gave it another lease of life and it may last for many more years to come Peter :)
@TRXLab5 жыл бұрын
I hope so..Thanks for watching John
@johnsampson10965 жыл бұрын
Great video, Peter! Glad you were able to repair that power switch. Persistence pays off. German engineers certainly designed great sounding radios with very few valves. Wishing you a Merry Christmas and a healthy, prosperous new year.
@TRXLab5 жыл бұрын
Thank you John! Merry Christmas and a Happy new Year
@PapasDino5 жыл бұрын
Thanks for showing some of the issues one can face when restoring old radios...a friend here just started working on a Hallicrafters SX-99 as his first restoration and I provided him with some safety caps and a chassis fuse holder so he can get started. Fortunately Hayseed had a re-cap kit for that radio and that gave him a good start. Merry Christmas Peter! 73 - Dino KL0S
@TRXLab5 жыл бұрын
Good to see you Dino and thanks for comment! Sounds like a very nice project on the SX-99 and good that the friend has you as mentor at his side....Merry Christmas and all the best 73
@herbertsusmann9865 жыл бұрын
Nice to see the inside of a classic German tube radio! I have restored many many American radios like this some even much older like 20s and 30s. We do have some export versions of these radios around here like Grundig etc... but they are not super common. Most seem to be more from 1960s rather than 1950s. Anyway glad to see this one back in working condition again! 73s and Merry Christmas to you and your family.
@TRXLab5 жыл бұрын
Always nice to work on radios like this. Thanks for feed-back and Merry Christmas to you and yours.
@jeffminnick52095 жыл бұрын
Beautiful radio from days gone by...nice restoration Peter....73 and merry Christmas from across the pond Jeff de WD8JM
@TRXLab5 жыл бұрын
Thanks Jeff! Merry Christmas across the pond :-) 73s
@ptronix5 жыл бұрын
Many thanks for all your videos! Always interesting
@TRXLab5 жыл бұрын
Thank you glad that you like my content
@Beretta96Dan5 жыл бұрын
Hello, Peter. Enjoyed the video. I bought a Philco floor Model 37-650 about a month ago. I will be going through that chassis and replacing capacitors, resistors, and anything else that it might need. Got my work cut out for me! 73, and Happy New Year! Dan w4mnc
@TRXLab5 жыл бұрын
Happy New Year!! Sound exiting with your Philco...have fun with the project. 73
@Rcmodelgeeks5 жыл бұрын
Love the engineering on german valve radios. Always a pleasure to work on.
@TRXLab5 жыл бұрын
Thanks for watching ans all the best
@boxingday115 жыл бұрын
Thanks Peter for all your efforts this year, best regards and happy Christmas my friend from Carl,G0lka.
@TRXLab5 жыл бұрын
Thank you Carl Merry Christmas 73s
@knottreel4 жыл бұрын
Impressive bench! I'll have to upgrade my 50s equipment one day.
@hdmalpas5 жыл бұрын
The British 3 pin plug must have saved some lives. Merry Christmas to you and your family. M3KQW 73's.
@TRXLab5 жыл бұрын
I believe the 3 pin plugs are a good idea as long the hot is wired right but I think that is given by rules. Thanks Howard and Merry Christmas 73s
@iw0hex5 жыл бұрын
Merry Christmas for you and your Peter, thanks for sharing your video. 73s Pasquale IW0HEX
@TRXLab5 жыл бұрын
Merry Christmas my friend wish you a wonderful time with your family. 73s
@michaeltaylor94635 жыл бұрын
hi peter yet another brilliant video you know what your talking about thanks 73s
@TRXLab5 жыл бұрын
Thank you Michael! All the best and 73s
@heerschappouls73515 жыл бұрын
Oh such an nice Radio, it were my fathers second radio in the fifty,s ..We do live in the Netherlands. So nice,,,i wish i had stil such one.
@TRXLab5 жыл бұрын
Yeah I agree it is really a nice radio. There is also a version with a clock which is a awesome radio...Thanks for watching and comment
@bundylovess5 жыл бұрын
Nice job peter big thumbs up 👍 my friend merry Christmas 🎄
@TRXLab5 жыл бұрын
Thank you Allan and Merry Christmas
@paul-c75415 жыл бұрын
Hi Peter, I was born in 1954 too, so be gentle with the old boy he's 64 years old and we old ones are for life ha, ha, I'm sure you will sort out his problems Merry Christmas. 73 Paul M0BSW
@TRXLab5 жыл бұрын
Hi Paul, 1954 is a very good construction year very robust so no need to worry :^) Merry Christmas and Happy New Year. 73s
@80Loke5 жыл бұрын
Merry chrismas 🙂 Nice old radio 👌
@TRXLab5 жыл бұрын
Merry Christmas
@Elmer-bl7sv5 жыл бұрын
Hello, I wanted to mention to you about the ic-7000 driver problem. I had let the magic smoke out of my pd55015 driver while in the adjust mode, so I was looking for a replacement and found a pd55025 replacement of the same dimensions and rated 25watts with the same gain. So I will see how that works.
@kevingray7075 жыл бұрын
Nice video but much prefer more electronic teaching. Watching the switch get fixed was most of the video. Seeing you show how you tested the caps was great. Would love to see more on the Sencore cap tester if you could do a short video. Seeing how a good cap acts compared to an old one. Thanks for all you do. Great stuff. Keep the teaching coming
@TRXLab5 жыл бұрын
Thanks for feed back. Saying that have you seen my video #91 with all infos you looking for and at 21:49 you'll find more about leakage current. There are much more tutorial videos here on my channel you may find more content for you...
@fredbos59973 жыл бұрын
Thanks for the warning! Interesting video again!
@SignalViewRadios5 жыл бұрын
Great video Peter
@TRXLab5 жыл бұрын
Thanks for watching
@Homer195215 жыл бұрын
I changed the bulbs in my Dim Bulb Tester to LED's. So much more efficient. ;-) Great video, Peter.
@tommybewick5 жыл бұрын
Is that more efficient? I would think you want incandescent for the higher current draw if it sees a short, which is what your really after.
@Homer195215 жыл бұрын
It was just a bit of infantile humor, commensurate with the size of my brain.
@TRXLab5 жыл бұрын
Yeah that is a good one LOL
@douro205 жыл бұрын
I have an old Philco radio from a Packard Special Eight which I need to go through once I get the right equipment going. I picked it up for free from the remainder of a close friend's auction lots. I just hope I won't have to source a matched pair of 7C5 output tubes for it (yes, this radio has push-pull output).
@TRXLab5 жыл бұрын
A very good hope you will enjoy the nice project. All the best
@wolfhawg5 жыл бұрын
Merry Christmas Peter. 73s
@TRXLab5 жыл бұрын
Merry Christmas Bob 73s
@hans4293 жыл бұрын
I have the Jubilate 1651 in my Garage :) haha
@11122233331115 жыл бұрын
Merry Christmas TRX family
@TRXLab5 жыл бұрын
Merry Christmas to you and yours!
@notfallmed5 жыл бұрын
Hallo Peter, danke es war echt klasse. wie immer und es passt auch zur Weihnachtszeit. Ich wünsche Dir -Euch schöne ruhige besinnliche Tage und ein Leckerly an den schönen schwarzen. vy 73 DO5NET Peter
@TRXLab5 жыл бұрын
Danke Peter! Auch für dich und deine Familie schöne Weihnachten und einen guten Start ins neue Jahr. Leckerli and die Schawrzen ist verteilt :-) 73!
@notfallmed5 жыл бұрын
Danke Peter, lasst es Euch richtig gut gehen. :-) 73
@aslerunarborgersen51754 жыл бұрын
You should build Mr Carlson's forecast capacitor tester. It is the best instrument for testing capacitors.
@FlexxVision5 жыл бұрын
Nice work on dangerus reconstruction at santa time.
@TRXLab5 жыл бұрын
Thank you Karsten and all the best 73
@FlexxVision5 жыл бұрын
Dito , wenn ich meine Geräte zerstöre sende ich in deine Richtung ^^
@waynethompson84165 жыл бұрын
Really enjoyed the video! That one was sold when I was 3 years old...my birthday is on the 21 of April! So very happy that you got the power switch working again. Maybe I missed something, but I didn't see you do an alignment on this radio. Did you do one and I just didn't see it? If not, why not?
@AUDIOETRADIOATUBES3 жыл бұрын
We have exactly the same old generator. I found one out of order some month ago it took month to repair it. These German radio are probably the best ones ever, compared to the European or American antique radios. I’ve a Phillips stero valve radio the wiring and mechanical parts are an incredible mess.
@schraubnix15835 жыл бұрын
Hello Would not it have been better not to install the capacitor (antenna connector) ? Today it is unfortunately so that many disturbances on the power grid come, it did not exist earlier. What a coincidence that you are making a video about a tube radio, I bought an old one a few days ago and now I can put it into practice. Thanks for this and all your other videos Peter. I wish you a merry christmas and a happy new year. Many greetings Uli ( DK6DV )
@TRXLab5 жыл бұрын
You are right Uli there is much QRM on the air. The good think here on the radio is that you do not need to put the power line to your antenna input. You can decide what you need and therefore I think it is okay. Thanks for stepping in and Merry Christmas an a Happy new Year.
@berndb.50975 жыл бұрын
Hi Peter, the right project for the cold season ;-) I did not know that you are such a tube lover. The power switch, you got back well .... thumbs up. And you also use the repaired capacitor tester right away :-) Was that your intension before? I wish you and your family a Merry Christmas. 73 Bernd
@TRXLab5 жыл бұрын
Hi Bernd, yes right a nice project for the cold season.. Well yes I always was fascinated by tube design and I love the warm sound. No the repair of the Sencore had nothing to do with this project. Thanks for stepping in. Merry Christmas to you and yours 73
@alfredneumann46925 жыл бұрын
Hello and i wish some nice days and and good jump to 2019. In the 80s i had built in in two such similar radios simple 1:1 isolation-transformers. Worked well. For restoration 'looking' reasons i would had cracked the filter cap-dou and placed the new caps inside the can. Also the selenium rectifier i would had opened and replaced the selenium an copperplates against the diode. Looks better :-) Good explanation about the coupling cap at the nose of the end-tube. I say in German: Wenn der nicht sauber ist, kriegt die Röhre rote Backen und Fieber. :-) How about the other two frequencies? You only showed the UKW-area.
@TRXLab5 жыл бұрын
Thank you Alfred and Happy New Year. The design of a repair always depends on the requirement of the owner. So I have done the restaffing of old components with modern parts as well and the outcome looks quite original....HaHa yeah, the tube gets red cheeks..That is how it looks like. Again thanks for stopping by 73
@rasherbilbo4525 жыл бұрын
Neat radio!
@TRXLab5 жыл бұрын
I do agree! Thanks for watching
@SoddingaboutSi5 жыл бұрын
Great ! A lovely Valve, sorry Tube radio!
@TRXLab5 жыл бұрын
LOL well for you it is a Valve radio for our friends in the US it is a tube radio and for me it is both :^) Thanks for watching Simon
@SoddingaboutSi5 жыл бұрын
@@TRXLab Happy Christmas Peter.
@TRXLab5 жыл бұрын
Happy Christmas Simon!
@mikesradiorepair5 жыл бұрын
Always nice to see a classic brought back to life and ready to be used for several more decades. I have several Telefunken radios. Several of them need to be restored. Makes me want to dig out one of them and resurrect it. On vintage radios like this when I'm installing modern X/Y rated capacitors I use the X1/Y2 rated blue ceramic types. They are usually a 1/4 the size or smaller and have 2 to 4 times the voltage rating of the originals. Here's a example of the ones I buy from DigiKey. www.digikey.com/products/en?keywords=399-9538-1-ND%09
@TRXLab5 жыл бұрын
Good to see you remember me on this types of Y capacitors almost forgotten..have to fill my stock. Thanks Mike! Hope to see you restoring a Telefunken soon.
@berniken65115 жыл бұрын
All the best Peter for 2019.................................................Berni
@TRXLab5 жыл бұрын
Happy New Year Berni!
@gerl98695 жыл бұрын
About line tension on the chassis, Peter is right. However should be mentioned some of the radio's in that era, are designed withhout a mains transformer, then one side of the mains is really on the chassis. Also then there are different tubes used, socalled U-types, with all the filaments in series. As can be found in old bakelite Philips radio's . Here however, there is a normal mains transformer and E-series tubes. So, to my opinion the 'tension on the chassis' Peter shows in the end, is not usual, it also glows slightly, like leakage current, not full mains there. This brings me to the selenium rectifier. This rectifier was not replaced. It would be better, because it can cause current leakage to the chassis. Replace the rectifier by modern diodes and the leakage is gone.
@HarvardBob5 жыл бұрын
Ger L. If you check at 1:02:17, you’ll see Peter shows the replacement of the selenium rectifier with a modern diode which he wired on a terminal strip mounted on top of the old disconnected rectifier.
@TRXLab5 жыл бұрын
The transformer is only for delivering the filament voltage and if you carefully watch the schematic as at 54:39 you'll see that the radio circuity is directly connected to mains. So it is for sure full mains and not a kind of leakage or ghost voltage it is rather more exactly the same as on the Philips radio what you are referring to with the exaption that the Philips do not have a transformer for the filament so they have to use the U tubes..
@gerl98695 жыл бұрын
Indeed Peter, I see it. The anode voltage here is directlty rectified from the 220V mains. The transformer itself is an autotrafo. I missed this and I assumed the trafo was a 'normal" transformer with separated windings for anode and filament voltages. This all is not quite 'Telefunken - like' , as we are used to more sophisticated power supply designs by this brand. Probably a matter of model policy, production costs or the lack of raw materials like copper at that time point. A justly warning: there can be mains phase on the chassis, even in a radio with E type tubes.
@StreuB15 жыл бұрын
LOL!!! Check out at 16:25. Look at the side of the transformer, that poor .025uF cap blew is ass out all over the side of the TX!!! Talk about "leaky!"
@TRXLab5 жыл бұрын
LOL yeah it looks funny on the video :-) Thanks for comment
@ProdByTimDuncan3 жыл бұрын
Hi TRX Lab, vielen Dank für das ausführliche Video! Ich habe eine Frage zu dem von dir verwendetetn "Loctite". Ist dies einfach ein Kleber um die Schrauben zu festigen, sodass diese sich nicht so einfach lösen? Und bekommt man dieses Loctite einfach wieder ab beim eventuell aufschrauben? Und noch eine letzte Frage, welches "Loctite" verwendest du? Beste Grüße
@alessandrozax5 жыл бұрын
Thanks for the video, what is the red fixer similar to glue to lock the screw ? Merry Xmas to you and your family, dog included ... ^L^ '73
@TRXLab5 жыл бұрын
It is Loktite glue...Merry Christmas 73
@Macky11014 жыл бұрын
How much do you think I should sell a Tekefunken Opus 9U, on ebay? Is it worth any money?
@berndreiner71595 жыл бұрын
Scheisse das ist sowas von PERFEKT 🙏🙏🤙🤙🤙🤙 KLAR DOCH MADE UND REPARIERT IN GERMANY 😁😁😁😁😁
@TRXLab5 жыл бұрын
Danke Bernd ich weiß das zu schätzen aber niemand ist perfekt! Ich freune mich das Du es magst. Danke fürs vorbeischauen !
@douro205 жыл бұрын
JJ capacitors? I thought they only made tubes. Is that capacitor made in the Czech Republic?
@TRXLab5 жыл бұрын
not sure if they build them may be only JJ branded but high quality who ever build it
@marco840105 жыл бұрын
Hallo Peter, vielen Dank für deine tollen Videos! Es macht Spaß dich bei der Fehlersuche zu begleiten. Ich habe hier ein Problem mit einem Yaesu FTM-100D VHF/UHF Gerät. Die Lautstärke des Lautsprechers steigt selbstständig an, ohne den Regler zu berühren. Am Kopfhöreranschluss verhält es sich genau so. Hattest du schon mal ein solchen Phänomen an einem Gerät? 73 ,Marco DO6NM
@TRXLab5 жыл бұрын
Hallo Marco, vielen Dank für Deine Rückmeldung. Zu deiner FTM-100 kann ich mich im Augenblick nicht erinnern ob ich diese Problem schon mal auf dem Tisch hatte. Leider lässt sich das Problem auch schwierig eingrenzen, da es überall liegen kann ggf. sogar in der AGC Schaltung..73
@Bass.Player5 жыл бұрын
Apparently when this came out the line voltage was 200/202 according to the schematic.
@TRXLab5 жыл бұрын
Well as far I know we had different power distribution in some areas we had even DC but usually it was 125V and 220V AC but I came never across 200V
@Bass.Player5 жыл бұрын
@@TRXLab Here in the US the line voltage was 110/220 in the past but it crept up over the years and now it's 120/240. My line voltage right now is 122.8.
@AUDIOETRADIOATUBES3 жыл бұрын
Typical german design. I love restoring antique FM radio
@TRXLab3 жыл бұрын
Yes indeed a nice radio. Thanks for watching
@Mentorcase5 жыл бұрын
Why do the Europeans have a plug that can be reversed, it makes no sense, here in Australia even our two pin plugs can only go into the socket one way and all outlets are wired to the same standard.
@jonka15 жыл бұрын
Yes it's crazy and they wanted the UK to abandon our state of the art 3 pin system for their own