A New Turntable Restoration Project - B&O Beogram 8002

So PT Cruisers aside for a sec, which I think are really fun when massively customized by the way. Where are we? Well... I liked @Redboy 's endorsement of @JP's PCB skills. So, @JP is my new solder mentor! Yay! Bet you didn't know that! Sorry JP, the job sucks... but it's yours. And, no. I don't get to blame you for my mistakes.

I needed to digest what you were trying to tell me. I watched more videos and read more info. I found a PCB and tested out what I thought I'd be doing on the B&O. Didn't go well. Not enough heat with the little tip I have on one iron and way too much heat with the tip on the other. I ordered more tips which should be here tomorrow, so I'll experiment some more soon. Yeah, it's easy to damage the PCB with too much heat. Glad I didn't try that on the B&O. I now get that rosin core braid for sucking solder should be the same width as the pad, 3 to 4 seconds of heat at most per post, and lift the braid and the the iron at the same time are key. Seems timing is critical. Same with a solder sucker. Timing. More questions...
  1. I don't know if the existing solder is something like 60/40 or lead free. Should I be concerned?
  2. Is there any reason to use additional flux from a syringe or tooth pick when removing components?
  3. Is there any reason to preheat the work area with a heat gun prior to removing a component? It's a big heat gun BTW.
  4. Should I be using a flux cleaner after, and if yes, which one do you like?
What else...? Oh yeah. The doohicky thingy. Yeah. That turned out to be the shielded effing box for the Uber rare microprocessor Einstein. I think I need to protect that thing somehow. I've invoked the @Pat McGinty philosophy of "No critical work after 3:30pm." Thanks, Pat!

Any thoughts about the Pontiac Fiero? Same vintage. Always liked that car. Never owned one.
 
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Thermionics

Post Whore In Training
So PT Cruisers aside for a sec, which I think are really fun when massively customized by the way. Where are we? Well... I liked @Redboy 's endorsement of @JP's PSB skills. So, @JP is my new solder mentor! Yay! Bet you didn't know that! Sorry JP, the job sucks... but it's yours. And, no. I don't get to blame you for my mistakes.

I needed to digest what you were trying to tell me. I watched more videos and read more info. I found a PCB and tested out the what I thought I'd be doing on the B&O. Didn't go well. Not enough heat with the the little tip I have on one iron and way too much heat with the tip on the other. I ordered more tips which should be here tomorrow, so I'll experiment some more soon. Yeah, it's easy to damage the PCB with too much heat. Glad I didn't try that on the B&O. I now get that rosin core braid for sucking solder should be the same width as the pad, 3 to 4 seconds of heat at most per post, and lift the braid and the the iron at the same time are key. Seems timing is critical. Same with a solder sucker. Timing. More questions...
  1. I don't know if the existing solder is something like 60/40 or lead free. Should I be concerned?
  2. Is there any reason to use additional flux from a syringe or tooth pick when removing components?
  3. Is there any reason to preheat the work area with a heat gun prior to removing a component? It's a big heat gun BTW.
  4. Should I be using a flux cleaner after, and if yes, which one do you like?
What else...? Oh yeah. The doohicky thingy. Yeah. That turned out to be the shielded effing box for the Uber rare microprocessor Einstein. I think I need to protect that thing somehow. I've invoked the @Pat McGinty philosophy of "No critical work after 3:30pm." Thanks, Pat!

Any thoughts about the Pontiac Fiero? Same vintage. Always liked that car. Never owned one.
The Pontiac Fiero definitely looked better than the PT Cruiser, and with the V6 and Getrag 5-speed, it was definitely sportier. I can't speak to drivability or reliability as I've never owned one (come to think of it, I've never owned an American-made vehicle).
 

JP

Junior Member
I don't know if the existing solder is something like 60/40 or lead free. Should I be concerned?

It’s likely 60/40, though I have seen comparability issues. Technics MKII boards I have to clear and solder twice to get a proper joint.

Is there any reason to use additional flux from a syringe or tooth pick when removing components?
No. If the joint won‘t heat add a little fresh solder.
Is there any reason to preheat the work area with a heat gun prior to removing a component? It's a big heat gun BTW.
No.
Should I be using a flux cleaner after, and if yes, which one do you like?
IPA works fine.
 
Hi guys, Sorry for the update delay, but life's gotten in the way. I got to spend a weekend with my kid who just went off to college. Awesome weekend. He's so fired up about his classes and living on his own for the first time. Likes his roommate, professors, the campus... all of it. We had activities for three days lined up. Then, last weekend I showed a dog in a dog show for the first time in my life. After our female earned her Grand Championship I decided I wanted to our male to be a Grand Champion as well. He and I have been taking handling classes for weeks. He's already a Champion, so it's more about training me and getting his head back into the game. We got a Best of Breed and got to go back into the ring with the rest of the Best of Breed Hounds. The next day we got Best of Opposite and Sunday we got Select Dog. We earned one point towards his GCH, but there were only four dogs entered, so I'm happy that. Other stuff going on too, but I won't bore you with that.

Remember the scene in Star Wars The Empire Strikes Back when the rebels are evacuating planet Hoth? They fire the ion cannon and disable a Star Destroyer and the first rebel ship is able to fly away? The controller announces "The first ship is away" and everyone cheers! That's how I feel. After much preparation I removed four capacitors and soldered in the new ones. The first two I chose were a .47 and a 4.7. Yeah, that made me nervous and I had to read them over and over again to make sure I got that right. Paid special attention to polarity too, so I'm confident I got that correct too.

I used the solder braid to remove the old solder. I know it isn't over yet, but I'm killin' it on removal! Super clean. Happens fast. Clip the end of the braid off and go again. LOVE that stuff! Got the new caps bent correctly... mostly, added a drop of flux from a syringe and soldered the new caps in place, clipped the ends off and then cleaned the area with 91% IPA. Very happy with the result. Still have a ways to go, but as you can surmise, I'm no big hurry. The only deadline on this project is self imposed. I'll have more time this weekend and next week. I didn't take a lot of pictures because I didn't want to get distracted. Thank god I had a magnifying lens on my solder base. First two removed caps are by the syringe in the second picture.

Well, I'll make more progress between breedings. One of my new projects is puppies! I'm not going to become a breeder, but I do owe my breeder a litter. I was able to talk her into allowing me to breed my two and whelp the pups here. I can't wait!

Recap1.jpg

REcap4.jpg
 
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JohnVF

Administrator
Staff member
Hi guys, Sorry for the update delay, but life's gotten in the way. I got to spend a weekend with my kid who just went off to college. Awesome weekend. He's so fired up about his classes and living on his own for the first time. Likes his roommate, professors, the campus... all of it. We had activities for three days lined up. Then, last weekend I showed a dog in a dog show for the first time in my life. After our female earned her Grand Championship I decided I wanted to our male to be a Grand Champion as well. He and I have been taking handling classes for weeks. He's already a Champion, so it's more about training me and getting his head back into the game. We got a Best of Breed and got to go back into the ring with the rest of the Best of Breed Hounds. The next day we got Best of Opposite and Sunday we got Select Dog. We earned one point towards his GCH, but there were only four dogs entered, so I'm happy that. Other stuff going on too, but I won't bore you with that.

Remember the scene in Star Wars The Empire Strikes Back when the rebels are evacuating planet Hoth? They fire the ion cannon and disable a Star Destroyer and the first rebel ship is able to fly away? The controller announces "The first ship is away" and everyone cheers! That's how I feel. After much preparation I removed four capacitors and soldered in the new ones. The first two I chose were a .47 and a 4.7. Yeah, that made me nervous and I had to read them over and over again to make sure I got that right. Paid special attention to polarity too, so I'm confident I got that correct too.

I used the solder braid to remove the old solder. I know it isn't over yet, but I'm killin' it on removal! Super clean. Happens fast. Clip the end of the braid off and go again. LOVE that stuff! Got the new caps bent correctly... mostly, added a drop of flux from a syringe and soldered the new caps in place, clipped the ends off and then cleaned the area with 91% IPA. Very happy with the result. Still have a ways to go, but as you can surmise, I'm no big hurry. The only deadline on this project is self imposed. I'll have more time this weekend and next week. I didn't take a lot of pictures because I didn't want to get distracted. Thank god I had a magnifying lens on my solder base. First two removed caps are by the syringe in the second picture.

Well, I'll make more progress between breedings. One of my new projects is puppies! I'm not going to become a breeder, but I do owe my breeder a litter. I was able to talk her into allowing me to breed my two and whelp the pups here. I can't wait!

View attachment 40808

View attachment 40809
I love everything about this post. The internet is so full of miserable people lately but this with the kid loving college life and the dog getting his head back in the game and the soldering and a beautiful turntable resurrection… great reading to start the day.
 
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