Excellent work Peter. I like a radio that is not covered in surface-mount components. There is something to look at and admire in a radio like that. These days it is like grains of rice scattered over the board! A big processor, a few chips, display drivers, well, you know what I mean. Nice work, repairing the radio. Clever, using a bulb as a fuse to protect the front end. As always, I find your videos very entertaining and educational. 👍 😎 I like your work, very thorough and precise, a joy to watch a professional at work :-))
Hallo Peter, wie immer eine professionelle und nachhaltige Reparatur. Ich schaue immer gerne über deine Schulter und kann sehr gut beurteilen wieviel Arbeit in den Videos steckt. Vielen Dank! 73, DG3JA
Dear Peter, nice too see you back here on our playground! Nice fix once again, one oft the best sold TRX worldwide saved..73 de Olaf. Ich freu mich, Peter. 73 de Olaf
Hi Peter, it's great to see another video. Looks like that customer was very lucky but definitely a lot of work to just switch a bulb for sure lol Thank you for sharing always look forward to your videos. 73
Thanks, Another great repair video Peter. Love the little "oops" at around 24 min in, "do you know where to put these back in?". Excellent reminder for all of us to take pictures or video!
I still have one of these from when I was first licenced unfortunately not working unless I can find a scrap one not that I need it but a shame really glad to see someone with skill and equipment still repairing these old radios
Hi Peter, during these day I repaired a Yaesu FT-767GX and I have seen on RF board the same lamp !!! I think it was very used in the past. Thanks for your video my friend and stay safe. 73s Pasquale IW0HEX
Hallo Peter, wieder was von Dir gelernt. Alte Geräte haben immer noch ihren Wert! Danke für die super Erklärung in allen Deinen Reparaturvideos. 73 de Stefan DG4RBS
Excellent video showing the trouble, this time was very easy, the same work I make on 757GXII but less tilt up the PCB, but changing the minilamp ( 8 volt - 0,1 Amp ) directly from the top of PCB. Very often I found this trouble in Yaesu radio due to excessive RF or static voltages on antenna System. 73’s Silvano I1WSM
Thank you Peter.. I have a very similar FT-757 II and wondered how well the bulb protected the Rx circuitry.. Knew it would open on a major spike, but was unaware of it progressively increasing resistance / protection as it heats up above normal current / signal levels.. Cool! Good job Yaesu! And thank you for the explanation.. Forgive me for a couple comments.. - although it might not be considered good practice, if you had clipped the leads off the old bulb, and soldered the new bulb to the old leads, you might have avoided heating the PC board & having to flip it.. just a thought.. - looking closely at the underside of the PC board, about 21:51, it seems there might be at least two other cracked solder joints on through holes & one end of a surface mount that might have benefitted from a reheat while you were there.. Thanks again.. Dennis
No problems with comments...Yes clipping might avoid open solder joints but you never know. I always check those jobs to be sure all is fine... at 21:51 must be a reflection...
If I may offer a suggestion, whenever I have to take wire harnesses apart, I label them with a piece of masking tape, even if you're just using numbers, it helps!! On reassembly, just reverse order!
these vintage radios are 100 times better made than today's radios. they were made when designers thought about the users. Transmit into the radio with 100 watts? Lightning strikes the antenna? no problem, the user has to change a bulb worth 80 cents. Back on the air in one hour, maximum. The new generation of transceivers? they go faulty just by the position of the Sun and the planets, or if a bigger bird sits on the antenna. Of course, they can be fixed by changing a bunch of SMD semiconductors and passives, or by swapping out the whole board. The cost? well... let's not talk about the cost.
Peter have missed your videos have you been keeping well that little lamp could it not substituted by a Zener diode were over power could to ground nice little old radio and you have given it more life again well done :)
Fantastic video Peter & thanks for sharing. Awesome troubleshooting approach. For us hams who can't afford such a good radio test set I would love in a future video if you could explore alternative, cheaper options. I'm always learning something useful in each video you post. Huge apologies, I accidentally hit the dislike in a rush but all good now. God bless you always Peter!. Bis bald & tschuss
I'm probably seeing it wrong, but the blue electrolytic capacitor right next to the bulb looks to have a hole in the side. Visible in the video at around 17:25.
Hallo Peter, direkt hinter der Anschlußbuchse "RX Ant" ist eine Schutzdiode D1 (Suppressor oder Transzorb?) parallel zum Eingang. Ist die nicht zerstört?
Hallo Stefan, du meinst bestimmt die D116 der Transidient Suppressor. Dieses Bauteil ist noch nicht gefährdet wenn ca. 15 Watt direkt in das Gerät gelangen. Bei 15 Watt haben wir ca. 27 Volt und da passiert noch nicht wirklich was mit Bauteilen die eine viel höhere Spannung "abfangen" sollen....
@@TRXLab I understand you perfectly well. You on the other hand might struggle with my accent from Doric part of North East Scotland :-) Your English is better than my English 😎
hello from australia I am fixing this bulb with my radio :) thankyou for the information. My donor radio bulb looks very good but is 8 ohms I was expecting closer to 0 do you think 8 ohms is good? I would like to buy a new bulb however i cannot find 6-8v 100mah locally
Ah I just saw another response where you believe it's a reflection.. I thought about that, wasn't sure. Do you think it was a reflection from that resistor or cap right beside it?
That pin being loose makes you wonder if this radio ever had any intermittent problems. It's actually a good thing the fuse blew so the pin could be fixed...K5AZE
I have a FT-757GXII myself. Biggest job so far was to remove the seized rotary encoder for dismantling and lubrication. Removing the encoder required disconnecting all those cables from the boards, before finally separating the front panel from the chassis. So I know the pain! While the covers were off, I also took the opportunity to perform one of Peter's modifications, using a PTC thermistor to temperature stabilise the master oscillator ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-KxVJfxiw4ZQ.html Such stability is probably overkill for HF SSB, but the temperature drift became problematic when using FT8.
Danke für das tolle Video.Ich habe die gleiche Station,nur 10m,28MHz funktionirt nicht,alles andere in Ordnung.Was denken Sie,warum 10m(28MHz) nicht funktionirt .ES ist eine meine erste(1989 Lizenz)wertvollen Stationen.😊😊😊.73,de Jozef OE1CJG,(S56CJG).
