1970s Stylish BANG & OLUFSEN Beomaster 1900 with Numerous Faults

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  • Опубліковано 20 лют 2024
  • In this video I attempt to repair a stylish 1970s radio amplifier from B&O. The BEOMASTER 1900 was understandably a very popular item, but you would have needed deep pockets to buy one of these 45 years ago. It still looks modern in 2024!!! A piece of stunning design from the Danish manufacturer. I purchased this faulty from eBay and it has multiple faults to work through, but the main fault is audio only on the left speakers, the right hand side is silent.
    Can it be made to work again. Let's find out.
    If you would like to support these videos, please click here / mymatevince
    Remember that this is just for entertainment and I am not an expert in these repairs. The processes in the video may not be the best way, the correct way or the safest way to fix these things. I do love fault finding and trying to fix broken things, so I hope that comes across in this 'Trying to FIX' series. Many thanks, Vince.
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КОМЕНТАРІ • 536

  • @harryjones5260
    @harryjones5260 3 місяці тому +32

    still remember that morning in 1979. aged 6. dad makes the tea and passes me the Beomaster 2000 brochure. whispering "we're getting one of these. DONT TELL YOUR MUM" my excitement knew no bounds. the future had arrived.

  • @El-Ritmo
    @El-Ritmo 3 місяці тому +42

    "What are you doing?"
    "Just watching a barely moving video of a man trying to get a bit of string around a small circle of plastic."
    "You what?!"
    "Best stuff on UA-cam this. Now shush, please." 😁😆
    Cracking fix, Vince. I have absolutely no use for one of these, but I really want one now - your enthusiasm is infectious.

    • @Mymatevince
      @Mymatevince  3 місяці тому +7

      🤣🤣 It is lovely. I've been listening to it daily since, to the misery of my kids!!!

  • @Longplay_Games
    @Longplay_Games 3 місяці тому +73

    1970s and 80s design is, IMO, far more futuristic than our current "oh, look, it's a featureless black slab with a web service" design.

    • @Hugh-S
      @Hugh-S 3 місяці тому +9

      Couldn’t agree more.

    • @danpedersen55
      @danpedersen55 3 місяці тому +6

      Precisely, and in 40 years time,you haven't got a chance using what they make today, no knobs or sliders and the web interface is not compatible anymore, with the future OS. I'm not a fan.

    • @38911bytefree
      @38911bytefree 3 місяці тому +2

      But doing this requires a ton of industrial desing. I mean ... the B&O

    • @chrisandrus2735
      @chrisandrus2735 3 місяці тому +1

      I agree!!

    • @snafu2350
      @snafu2350 3 місяці тому +2

      Yup. When do you think the Lambourghini Countach was originally designed? OK, it's horribly aerodynamically inefficient, but it looked seriously futuristic when it was launched.. & still does, IMO!

  • @dash8brj
    @dash8brj 3 місяці тому +33

    These B&O sets still look smart today compared to all the plastic junk they sell nowadays. Good on you for saving it Vince.

    • @cheifwhat
      @cheifwhat 2 місяці тому

      Yeah, then he goes and repairs a bunch of stuff by the mighty "Bush"

  • @MrAsBBB
    @MrAsBBB 3 місяці тому +51

    I’m 55 and did the first ever GSCE in electronics and then got sponsored to do my electrical engineering qualifications. You should be proud of your fault finding expertises. It can be applied in so many environments. This should be taught to children. It would make so much of a difference to our world. I spend my working day is spent fault finding in data systems , the trouble is I am the only one able to do it in a company of 20k people. I am so overworked. I train people but they just find it either hard work or just not in their pay grade. All the best.

    • @AlexMitchell-sj4sb
      @AlexMitchell-sj4sb 3 місяці тому +8

      Agreed, they should be teaching these kinds of skills in schools instead of the rubbish they teach them that is usually of no use once they leave.

    • @rojhann
      @rojhann 3 місяці тому +4

      @@AlexMitchell-sj4sb As an Aircraft Tech I was trained to diagnose and repair faults, today they just change boxes and over time they have lost the skills.

    • @glengrimm4075
      @glengrimm4075 3 місяці тому +1

      ​@@AlexMitchell-sj4sb 💯 facts

  • @nelsin1925
    @nelsin1925 3 місяці тому +18

    I'll say it again: Never change how lo-fi your videos are.
    I have been with you on and off again since go, and I really like that you have not changed.

  • @faithless8888
    @faithless8888 3 місяці тому +32

    Hi Vince. The green “arrow” looking lights under the huge tuning dial, are not just for decoration, or to indicate stereo. They actually tell you, how to fine tune your station. If for example the left arrow is brighter that the right, just move the slider slightly to the left. You will see the left arrow decrease in brightness, because you are tuned in properly. Nice repair by the way! 🙂

    • @Mymatevince
      @Mymatevince  3 місяці тому +3

      Thank you, what a nice little touch. I wasn't sure how it worked. Thanks for telling me 👍

    • @samuelfellows6923
      @samuelfellows6923 3 місяці тому +4

      Similar to an “FM tuning” analog meter in vintage receivers = the resting position of the needle is in the middle of the meter, when tuning into a station the needle would deflect to the left/right on which side of the scale you were tuning into, and when centralised with the station the needle will [again] sit in the middle of the meter

    • @2705fie
      @2705fie 3 місяці тому +6

      hello from Denmark, I have worked as a technician for more than 40 years from 1967 repairing B&O's products, also beomarster 1900 I have e.g. converted a BM1900 to a BM2400. you bought the components at the B&O factory and built the print from scratch, when it became a BM 2400 it had a remote control so that all the functions could be controlled, this was with ultrasound which B&O used at the beginning also for TV. it is important that you wonder about the small round gizmos you find on the printed circuit board when you remove the metal bond, it is important that you put them back in as they must prevent the metal bond from being pressed onto the printed circuit board and short-circuiting. Another thing in your previous video with the 1960 radio you have put the scale cord the wrong way around the scale wheel, the arrow on the scale goes the wrong way when you turn the knob.😮

  • @MsNIKITA
    @MsNIKITA 3 місяці тому +43

    The grey plug is the "BS5733 Masterpiece" a rewireable 3 pin, 6 Amp Masterplugs often used for hifi and home entertainment at one point. Very useful.

    • @rc6133
      @rc6133 3 місяці тому +4

      I had a set of these on my hifi years ago, took up a lot less space than the standard three pin plugs and a four way.

    • @EudesRJ
      @EudesRJ 3 місяці тому

      I saw it quickly on my phone, mistakenly with the Italian plug (type L)

    • @themlotproductions
      @themlotproductions 3 місяці тому +1

      Beat me to it.

    • @janebottomley6852
      @janebottomley6852 3 місяці тому +3

      Yea l have one with 4plugs got my Xmas lights wired up,goes into like a 3 pin extension lead

    • @wheelmonkey00
      @wheelmonkey00 3 місяці тому

      seen a kenwood stereo recently that these plugs would daisy chain from the amp, never got round to googling them 😁

  • @RSFred555
    @RSFred555 3 місяці тому +30

    Round object you found loose might be the pokey bits from the rubber feet that have broke off.

    • @Mymatevince
      @Mymatevince  3 місяці тому +4

      Thank you Fred, I would have never have guessed that, but there was 4 and also located near the corners. Thanks for letting me know 👍👍👍👍

    • @TheMatthooks
      @TheMatthooks 3 місяці тому +1

      Haha beat me to it Fred. That's exactly what they are.

  • @devttyUSB0
    @devttyUSB0 3 місяці тому +23

    B&O always were futuristic with their designs. What a great looking device! Good to see it working again!

    • @Mymatevince
      @Mymatevince  3 місяці тому +2

      It is lovely, thanks for watching 👍

  • @Smedleydog1
    @Smedleydog1 2 місяці тому +2

    I remember back in 79/80 a friend of mine worked at an audio store in the mall close to where we lived. Once in a while on Friday or Saturday night my friends and I would go out to eat, so we would meet at the store right before closing. We would play with all the audio candy while they were locking up, he would show us the latest and greatest, and we would drool over it.
    We were in college at the time and The Bang & Olufsen equipment was way out of my $2 price range.

  • @pauleastham2177
    @pauleastham2177 3 місяці тому +4

    That weirdo plug is a Micromark plug. Popular with UK audio separates fans around the mid 1980s. You can imagine with Amp, Tuner, Tape, CD, Turntable etc there were loads of mains plugs and sockets required. Using BS1363 plugs and extensions used up a lot of real estate at the back of the "tower". UK homes typically only had one or two sockets per room back then. Micromark nutters (like me) even shortened all the mains leads to route them nicely at the back. Also, mums didn't like to see "all those messy wires".
    They weren't cheap, but they were really neat.Also remember B&O was top dollar, Micromark was just what a B&O owner wanted.
    Loving the B&O videos.

  • @andytipping70
    @andytipping70 3 місяці тому +13

    Hi Vince - there are two different types of pot track - linear does indeed drop proportionally depending on position of the probes - but LOGARITHMIC (LOG) pots have the resistance kinda squeezed up at one end of the track - volume pots are usually logarithmic, balance is usually linear - just a thought?

    • @Mymatevince
      @Mymatevince  3 місяці тому +1

      Thanks Andy, I now remember being told this in the past. I think in this instance they were supposed to be linear, but I do need to remember your wise words for future repair attempts 👍👍👍

    • @5mf1nc
      @5mf1nc 3 місяці тому +1

      No, balance pots are entirely different!! They are 0 ohm in the middle for both and keeps it on one channel, while the other have carbon trace/increasing resistance.Same for the other direction. Something like: 10k/\/\0----0 and the other side 0----0\/\/10k
      (or sometimes using more complex circuit to use basic linear pots but those tends to be not as good keeping the center)

  • @Asriazh
    @Asriazh 3 місяці тому +14

    the four powertransistors (the big ones at the back) aren't for four channels, they only do 2 channel stereo. The left channel uses a PNP and an NPN transistor and so does the right channel. NPN is for the positive swing of the sinewave (audio signal) PNP is for the negative swing. The balance potentiometers on that Bang & Olufsen potentiometer is a bit of an odd one. Normally at the center position, both channels would be at full volume and then, as you twist the button, one side would be dampened by increasing resistance. On this unit, the channel you move the balance slider to actually gets louder. Nice seeing this stereo being useable again. Thank You ^_^

    • @Mymatevince
      @Mymatevince  3 місяці тому

      Thank you Asriazh 👏

    • @fathertiresias8561
      @fathertiresias8561 3 місяці тому +2

      The other giveaway to the transistor configuration is the power rating printed on the bottom of the unit. It gives a speaker impedance of 4 ohms per speaker. The 2 speaker power output is double that of the 4 speaker output suggesting that when four speakers are used they will connect in series. Thus doubling the impedance and halving the power output.

  • @jackmanatee3162
    @jackmanatee3162 3 місяці тому +12

    In my teens (mid 70s) I remember drooling over the clean lines and beautiful functionality of B&O stereo equipment. Like the Beogram 4000c turntable, a work of art. But alas, I only had a Radio Shack budget.

    • @sambuka57
      @sambuka57 3 місяці тому +1

      You can buy the 4000c once more as they are selling them. If you have £10000 to spare.

    • @jackmanatee3162
      @jackmanatee3162 3 місяці тому +1

      I STILL have a Radio Shack budget.@@sambuka57 😁

    • @Mymatevince
      @Mymatevince  3 місяці тому

      🤣👍

    • @38911bytefree
      @38911bytefree 3 місяці тому

      The 4000, 4002 .... I was in love SO BAD !!!!!. The catridge / stylus was the only issue to me. It is B&O specific. I think is is displayed at MOMA ? ....

  • @jamiekent1970
    @jamiekent1970 3 місяці тому +18

    Hi Vince, that plug you had was from a extension lead hub , i think the one I had was white and had 6 outlets, it was unfused you generally put 13amp UK plug on the other end with 3 or 5 amp fuse in to cover the 6 outputs… they were a lot small than having a 6 way extension lead behind the cabinet.. had mine around 1986

    • @Mymatevince
      @Mymatevince  3 місяці тому +3

      Thank you Jamie 👍👍

    • @stuinNorway
      @stuinNorway 3 місяці тому

      I had a similar one back around 89-90 but it was based on standard IEC plugs, similar in shape to PC (tower) power leads and kettle leads.
      That one looks more like the Italian style variation on the European plugs, some of them had a central earthc pin like that.

  • @123simion1989
    @123simion1989 3 місяці тому +20

    This is a welcome sight for a long term viewer who is ill 🤒 perfect timing. Thanks Vince

    • @kevinbarrett2653
      @kevinbarrett2653 3 місяці тому

      I too am a terminally ill long term viewer. My Mate Vince is a real mate in the wee small hours when
      p[ain is getting the better of me. Thank you Vunce. Good mates are worth their weight in gold.

  • @ralphj4012
    @ralphj4012 3 місяці тому +8

    Exquisite. If you can find some slider pots of the same length you may find that you can change the tracks over, then use the new plastic parts, but, as another viewer mentioned, check first whether the pots are linear or log. The TO220 transistor should ideally have a plastic bush (part of a transistor kit) which passes through the tab and the mica washer as this would prevent shorting if the screw wanders, but the workaround is fine. The wandering slugs were a concern. Margot Robbie would clash with your decor, for Clive, on the other hand!

  • @bramgn
    @bramgn 3 місяці тому +5

    I appreciate that you show the radio not working after the repair, i wouldn't want to watch a repair video with just successes!

    • @jukingeo
      @jukingeo 2 місяці тому

      It's a B&O. Witnessing a successful repair is a rarity.

  • @NOWThatsRichy
    @NOWThatsRichy 3 місяці тому +2

    I first saw a brand new one of this exact model, back in 1977, a relative of mine bought one. When I went to their house, the then 9 year old me was absolutely amazed at how futuristic it looked, with all the red & green indicators & touch sensitive controls, when everything else at the time had big buttons & knobs!

  • @TheJensenInterceptor
    @TheJensenInterceptor 3 місяці тому +4

    My uncle had one of these new and it was really so special I absolutely remember it......

  • @mrdali67
    @mrdali67 2 місяці тому

    Comming from Denmark this is so fun to watch, I remember In school I was out in a 14 day intern to find out what we wanted to work with when we graduating and I was in a small radio schack, And he just got a Beomaster 9000 in for repair (Top Model) looked like a freakin Startrek Spaceship control. If people don't know it, look it up. Kinda same design as this just 3 times as big and It cost like a yearly salary to buy .. lol. He opened it up and he removed a big Chip, Propably some VLSI type, and then turned it 180 degree and plugged it in again, and turned the Radio on and it starting speweing fault codes out on the display. And then he could look it up in the service manual which circuit was faulty. Absolutely groundbreaking tech at that time. And just think of todays Multi room wireless systems. Bang & Olufsen had that, (just wired) over 40 years ago.

  • @occamraiser
    @occamraiser 2 місяці тому

    One of my friends (one of the really rich ones) when I was at school in the 1970s had one of these in his living room. TOUCH SENSISTIVE! It was like Star Trek!

  • @kisslab
    @kisslab 3 місяці тому +9

    You should have used a proper mica disk for insulating that transistor, not a piece of plastic because of better thermal transfer capabilities. A proper one for a TO-220 (that's the package of that transistor I think) costs only a few cents.

    • @Mymatevince
      @Mymatevince  3 місяці тому +5

      Thanks Kisslab, I have now bought a pack of 5 from eBay👍

    • @helgew9008
      @helgew9008 3 місяці тому

      Also, that plastic isolation washer should have a shoulder on it, so that it goes slightly into the hole in the transistor. That way, it prevents the screw from touching the transistor. Oh, and hot glue on hot parts does not work.

  • @jochenwuerfel
    @jochenwuerfel 3 місяці тому +3

    Now I can't wait for the next B&O 1hour+ video 😁

  • @geoffh4578
    @geoffh4578 3 місяці тому +7

    the transitors are dual for each channel which means there is no 4 channel output, the clue is written on the bottom, 30w output 2 channel and 15w output 4 channel, the speaker selection switch is another clue

    • @helgew9008
      @helgew9008 3 місяці тому

      Correct. This is a class AB amplifier, so it uses two transistors for each channel, in a push-pull configuration. Given the age of the unit, I'd say they are bipolar transistors. One NPN and one PNP for each channel.

  • @andyevans2336
    @andyevans2336 2 місяці тому +1

    I just restored one of these for a customer last month, including the matching cassette deck and Beogram linear turntable. Belts were the biggest difficulty in chasing down parts. Still sounds great after 46 years.

    • @keithhoughton4308
      @keithhoughton4308 2 місяці тому

      I have that cassette deck. Are you happy to share your source for the belts?

  • @FourIntoOne
    @FourIntoOne 3 місяці тому +1

    From a time when B&O really were something. Space age at the time. I fondly remember having a couple of earlier B&O setups over the years.

  • @mikeschumacher9715
    @mikeschumacher9715 3 місяці тому +16

    Had a couple of friends with these, back in the 70's. I have a fantastic B&O turntable now. Spendy but worth it. In the movie Christmas Vacation....the stereo destroyed by the ice coming through the neighbors window, is a Beogram 9000, Beocenter. Made me cry to see it destroyed.

    • @NatureOkie
      @NatureOkie 3 місяці тому +2

      Take heart, it was a prop copy wired to short, etc...not a real one.
      But, cool the set dresser used a real Beocenter as a bedroom radio....

    • @jukingeo
      @jukingeo 2 місяці тому

      I laughed during that scene. B&O stuff really isn't that great. They break down very easy, they are hard to repair and they really don't sound any better than a Bose system. While the speakers were a bit better, (Many used Seas drivers, but the crossovers are utter garbage), their electronics are really nothing to write home about. It is just overhyped and overpriced stuff. You can definitely do better for less money.

  • @dahger7
    @dahger7 3 місяці тому +2

    Yes it's just a video. But you sir are a benefit to society with your kindness and good heart. It comes out in your videos. You could work on a boulder and it would be interesting.

  • @wisher21uk
    @wisher21uk 3 місяці тому +6

    Nice fix Vince, those clips for those bulbs maybe like heat shields as well?
    That is a mica insulator on the transistor, just hope that plastic you put on doesn’t melt …..
    Seeing those looms reminds me of when I was at Watford college in greatham road in the 80’s, we had to do looming like that for wiring control panels, I did my city and guilds and got my E.I.T.B certification 😊

    • @Mymatevince
      @Mymatevince  3 місяці тому +1

      Thanks Gary, I bought some Mica and washers on eBay after reading the helpful comments👍 I know who to ask now if I need some wiring loom advice, good job it looks OK on the Rolls otherwise I'd have you on the first train down for help😂

    • @wisher21uk
      @wisher21uk 3 місяці тому +1

      @@Mymatevince good move Vince it’s safer that way, I’d come down anytime my daughter and family live in Bushey 😊

  • @TheMcflyster
    @TheMcflyster 2 місяці тому

    Hi Vince! I bought on of these for 20£ and it had the exact same problem with balance. So I manage to fixed it thanks to your video. Thanks man! 👍

  • @bathesheba111
    @bathesheba111 3 місяці тому +3

    Hi Vince. I dont think anyone will make the carbon tracks, case of supply and demand. One solution is to bypass the faders. Use them as decoration only. Then attach micro potentiometers to the circuit board to bypass faders. Set them at a nominal value. Then have a flying lead to the back panel for a small potentiometer controlling volume. This is all easy to do and maintains the integrity of the B&O whilst still being able to enjoy its use. Sadly this problem applies to most vintage tech…..no more spares!!

  • @sw6188
    @sw6188 3 місяці тому +3

    The four outputs do not equate to the four transistors. This is only a two channel receiver - left and right, and each channel uses a pair of transistors. The two lots of outputs (A and B) are just mirrors of each other - they are both fed from the two channels. Broken faders are common on these old machines now. I have worked on way too many of them and they can take hours to get working reliably. They were revolutionary from a design perspective and great when they were new, but decades of time have taken a toll on the hardware and trying to keep these old girls alive is becoming increasingly difficult and expensive. By the way, you can get replacement plastic light diffuser cards for the bass, treble and balance controls. I did some repairs to a customer's Beo unit a few years ago and he provided a set to be fitted before I closed the unit back up again.

  • @funkykoldmodena
    @funkykoldmodena 3 місяці тому +2

    Hello Vince, The knot in the tuning string is where the pointer is supposed to be connected. keeps the pointer in position Great video..

  • @skonkfactory
    @skonkfactory 3 місяці тому +4

    The "bit of plastic" you're talking about is actually a piece of thermally conductive mica, and the sleeve that goes over the screw is supposed to stop motion from happening anyway.
    I would strongly recommend that you look up TO-220 insulating products rather than going with this solution because the plastic will melt if the transistor gets hot.

    • @Mymatevince
      @Mymatevince  3 місяці тому

      Thanks Skonk. I just bought 5 of them on eBay for under £3 delivered. It had the Mica and the washer. My washer on this B&O was broken and looked like a washer instead of a top hat washer. I'll get it swapped out when they arrive 👌👍

    • @skonkfactory
      @skonkfactory 3 місяці тому +1

      @@Mymatevince Phew, as long as you don't leave it that way, it'd be a shame if it shorted out and did some damage to such a lovely piece of equipment!

  • @theoriginalrecycler
    @theoriginalrecycler 3 місяці тому +5

    That weird plug is a 1980s adapter from an extension block. I had a couple in red, plugged the main unit into mains and mine had 4 of those plugs in sockets in the main unit. Mine powered the tv a Betamax and a vhs and a receiver.

  • @chrisw1462
    @chrisw1462 2 місяці тому

    Man.. B&O was the absolute audiophile favorite of the late 70's and early 80's. Quality audio and beautiful design. A shame there's no one to fill their shoes these days.

  • @mavis34
    @mavis34 3 місяці тому +6

    Something that I didn't know existed but have come in really handy are 'RELIFE' PCB repair traces of all shapes and sizes, I'm sure a lot of people would have some use for them. That B&O Amp does not look like something from the 70's... Awesome stuff!

  • @TechTimeWithEric
    @TechTimeWithEric 2 місяці тому +1

    If I recall correctly, Steve Jobs was a huge fan of B&O because of the elegance of them

  • @simonwatson5299
    @simonwatson5299 3 місяці тому +5

    Vince, you can buy carbon conductive paint/ink, you can also make it yourself, as it's just graphite, and glue. Nice fix. 👍👍👍👍

  • @guidomersmann9744
    @guidomersmann9744 3 місяці тому +2

    I always love when you refer to the old one naming it "my one" even so both are yours! :D

  • @38911bytefree
    @38911bytefree 3 місяці тому +1

    One of the best vintage B&Os designs. Jabos Jensen really was killing it !!!!! Beauty, class and somehow still modern with its minimalistic concept.

  • @alanrkanter
    @alanrkanter 3 місяці тому +3

    The lamps are all the same but the only ones that are on ALL THE TIME are the Bass, Treble, and balance. The lamps for those 3 MUST be the same type as they are designed to pull the P/S down. Also, all 3 slide pots are designed to fail. When the Bal pot does, you loose one or both channels! I've serviced over a thousand of the BM1900 and 2400. Been there, done that.

  • @ladronsiman1471
    @ladronsiman1471 3 місяці тому +1

    This particular unit was the first B&O i got to know .Back in late 70's in Paris ,One of my school friends was rich and they had B&O stereo .. so we used to go to his place to listen top Pink Floyd in his stereo .. i then was intoduced to the magic of B&O .and 50 years later i collect B&O equipment..Every single system is designed with love and perfection

  • @TrueBrit1
    @TrueBrit1 3 місяці тому +1

    Blimey Vince, that is a gorgeous looking thing. That looks so futuristic now, let alone 50 years ago! Class.

  • @andrewmitchell9807
    @andrewmitchell9807 3 місяці тому +3

    Mesmirizing to wander through these pre IC hifi classics. Love the QUAD as well. Many thanks 👍

  • @grahamfoster9404
    @grahamfoster9404 3 місяці тому +2

    Nice video Vince , who would not want that in their home . Fantastic cheers....

  • @lioneldickerson1550
    @lioneldickerson1550 3 місяці тому +6

    Hi Vince, this is an excellent repair and a superb quality B and O amplifier.

  • @venenareligioest410
    @venenareligioest410 3 місяці тому +1

    In my opinion B&O designs are timeless 👏🏻👏🏻👏🏻

  • @Decybello
    @Decybello 2 місяці тому

    Rememer gettng Beomaster 8000 as a gift from my uncle who was living abroad... You probably can imagine, what all of my buddies were talking about for months after they've seen it 😁 No wonder, cause it was not only eye-wateringly expensive back in the 80's (it's cost was comparable to a cost of buying a good car in my country) and in my homeland just impossible to get....

  • @edwardfitz-gibbon6484
    @edwardfitz-gibbon6484 3 місяці тому +3

    Hi Vince. Those sliders can have different rates of change too. Logarithmic and liner. So swapping the tracks may give you the wrong one. So look out for ‘log’ or ‘lin’ markings. And yes the tone controls will have track for right and left channels. However you would probably not notice a difference between the channels if they had a slight difference in response between them. The “plastic” spacers for the transistors are probably thin mica. Good electrical insulator and good heat transfer. Don’t use plastic. It may melt. And the little round plastic insulator tube goes in the hole in the transistor. Nice video and what a time travel that was. Brilliant. Thanks

  • @adamgrimsley2900
    @adamgrimsley2900 3 місяці тому +2

    Whst a beautiful piece of machinery. Rewarding.

  • @russgladstone432
    @russgladstone432 3 місяці тому +2

    That little black plug comes from a multi plug extension gang of sockets, usually 4 or 5 of them in a slim block which takes up less space than our conventional extension lead sockets , i had one years ago in the 80s/90s for my technics stack system… here in the uk

  • @pikeyandclaire
    @pikeyandclaire 2 місяці тому

    We had so much quality sounding equipment in the 70’s and 80’s. And we didn’t realise it until we got older! Looks like our age group are now ‘NOT’ the problem with a throw away society!

  • @glengrimm4075
    @glengrimm4075 3 місяці тому +1

    Dude I love it when people like you geek out over old stuff like this, I was amazed just how gorgeously made that amp was made.
    It's a piece of 1970s art, I've owned amps from Yamaha, onkyo, technics, bose and this as basic as it is inside is a marvellous feat from an engineering point of view for the 70s you just know when you see something like this that's so futuristic but made so basic that it will last the test of time.
    And it still looks like it would suit any household from rent controlled housing projects to a massive mansion.
    I love companies that concentrate on sound quality rather than large sized amps and big muscle pumping base
    Where quality is overlooked in the search for high power.
    Dude I love you work and your videos keep it up, there isn't many people anymore that have the same passion or knowledge of quality audio, even If it is old. But then people like us know that mostly that is where the quality is.
    Stuck in the past. 👍

  • @markshellard5894
    @markshellard5894 3 місяці тому

    Always great to have a Vince to watch

  • @NatureOkie
    @NatureOkie 3 місяці тому +1

    I am a long time Beofan.
    Buying my 1st Beocenter while in the Navy.
    [Transister wash is practically nil!]

  • @Ariannus
    @Ariannus 3 місяці тому +3

    I could be wrong but I think the knot on the fm tuner string is supposed to be at the indicator to prevent it from sliding on the string.

    • @Mymatevince
      @Mymatevince  3 місяці тому +1

      Good point. Thank you 👍

  • @propfiendfpv9535
    @propfiendfpv9535 3 місяці тому +1

    I love my mate vince. Helps me through all my technological nightmares. 😊

  • @andyroberts9562
    @andyroberts9562 3 місяці тому +1

    Still watching and enjoying your videos Vince!, love how B&O put instructions on the case telling you how to dismantle it, seeing anything made by B&O reminds me of walking into a showroom years ago randomly pressing the touch sensitive buttons on the tuners & amps only for one to switch itself on at a thousand decibels, one of the staff had to come over and switch it off, i left the shop quite quickly after that

  • @Popeyes66
    @Popeyes66 3 місяці тому +3

    Yowser.
    What an elegant piece of furniture.

  • @robertbeer2584
    @robertbeer2584 3 місяці тому

    The old stuff design was so important just beautifull... thanks Vince

  • @robindickinson5376
    @robindickinson5376 3 місяці тому +1

    Another excellent long video - really love this format - thank you👍👍👍

  • @tonyabramson
    @tonyabramson 3 місяці тому +3

    Hi Vince, the plug is from a 4 socket extension plug. I'm not sure, but i think it was made by duraplug. Ideal for hifi separates

  • @Retro_andy_1977
    @Retro_andy_1977 3 місяці тому +1

    Exellent job Vince!! Great work

  • @ovalwingnut
    @ovalwingnut 3 місяці тому +1

    My day is looking up. Vince is back (baby!). Now on to the show - and thank you

  • @georgekane-be7lt
    @georgekane-be7lt 3 місяці тому +2

    Thanks for all the videos you have done and keep up the amazing work
    George

  • @YellowJello57
    @YellowJello57 3 місяці тому +1

    Love these types of videos, Vince. Thanks for the entertainment as always. Looking forward to some more of the old Roller soon.

  • @biddlybongdavinport5995
    @biddlybongdavinport5995 3 місяці тому +1

    Lovely design, sonically a bag of spanners.

  • @dodgydruid
    @dodgydruid 3 місяці тому +2

    I'm reminded of another B&O we had in the 70's, a BeoVision massive and very futuristic looking TV which could be wired into ones BeoCentre or Master for producing stereo and quadro sound from the telly. Our one which cost a fortune was also only black and white but the clarity of the picture was so good, one didn't notice the lack of colour and was very clear, it spent its last days being serviced by my Sinclair computers and Atari 400 and our NES, sadly the gaming machines hastened its demise and one day I went to turn it on and it made this awful burning smell before a rifle shot bang and me father going bananas because the smell was acrid and smoke plumes coming out the back. My grandparents seeing I was bereft of a computer TV gave me their old old 1950's telly again black and white but heck it was better than nothing lol

    • @Blackadder75
      @Blackadder75 3 місяці тому

      if your family was rich enough to buy multiple home computers for the kid(s) why didn't they also buy a (cheap) 2nd hand small color tv to go with those computers?

  • @electronash
    @electronash 3 місяці тому +2

    This style of B&O stereo gear, always reminds me of National Lampoon's Christmas Vacation, with the hipster neighbours. lol

    • @electronash
      @electronash 3 місяці тому

      Or a local shop here in the early 90s, called "Artifact".
      They had all the executive toys, low-power lasers, expensive stereos etc., and I never saw anyone buy a single thing there. lol

    • @electronash
      @electronash 3 місяці тому +3

      What I will say, though, is we had a BeoVision TV (2200?) in the 90s.
      Big CRT TV, and only the Mono version.
      But the speaker and subwoofer in it were amazing. And the solid metal remote control.
      Some modern speakers of a similar size still struggle to sound as good as that mono TV.

    • @snafu2350
      @snafu2350 3 місяці тому +1

      @@electronash Agreed. B&O were always praised for their design & audio quality, hence why they only do that stuff now as opposed to including TV etc

  • @ValiZidaru
    @ValiZidaru 3 місяці тому +1

    Got my grabby hands on a Beomaster 2000. Made in 1983, that thing still bangs.

  • @ivanburrows6832
    @ivanburrows6832 3 місяці тому +1

    Always hung my nose over B&O in the local hifi shop but no way of owning any and it but great to see so many years later ... Velvet Moon - Queen Of Hearts has just gone on my fav list so thanks all round...:)

  • @IAWAF
    @IAWAF 3 місяці тому

    Interesting video. You obviously know more about electronics that the average person. I wouldn’t even try to fix this. Good job.

  • @zorkblat3858
    @zorkblat3858 3 місяці тому +1

    I can't get enough of this channel

  • @MarcStift
    @MarcStift 3 місяці тому +2

    Nicely done Vince. 1:13:34 reminds me of the car KITT from knight rider with David Hasselhof

  • @gbinford9009
    @gbinford9009 3 місяці тому

    I was just about to suggest it Right before you started talking about possibly being able to 3d print the slider part. Great to live in a time where we can make our own obscure plastic bits to repair old devices

  • @budgetmerch
    @budgetmerch 3 місяці тому +2

    Very stylish - Love B&O equipment. It seems that the tuning slugs are from a previous repair so that is interesting that they were just laying in the bottom like that. Great, also, that the faults were minimal.
    Definitely a keeper.

  • @aeonikus1
    @aeonikus1 3 місяці тому

    Wonderfully designed and engineered piece of audio history. Well done!

  • @maxz8807
    @maxz8807 3 місяці тому +1

    Stunning unit vince, great repair 👍

  • @stevedebeukelaer1424
    @stevedebeukelaer1424 3 місяці тому +1

    Nicely done Vince

  • @599miata
    @599miata 3 місяці тому +1

    Super video Vince on a monument of radio. 👌👌👌👌

  • @REFLAR_LAB
    @REFLAR_LAB 3 місяці тому +1

    Very nice device

  • @woollysoxx
    @woollysoxx 3 місяці тому +1

    Very nice repair. Beautiful stereo

  • @tonibonbonii
    @tonibonbonii 3 місяці тому +1

    When i see that one hour mark i get butterflies the blue hoodie man strikes again !

  • @markepps2404
    @markepps2404 3 місяці тому

    my dad had one of these with the record deck and tape player plus the B&O speakers. what a setup! takes me back seeing this video. thank you Vince

  • @davidfarrell7318
    @davidfarrell7318 2 місяці тому

    wonderful looking i wish audio equipment was made like this today instead of nasty tinny sounding this would look good mounted on the wall a definite talking point

  • @mrjsv4935
    @mrjsv4935 3 місяці тому +2

    Very cool and futuristic looking device for it's time, and nicely repaired :) Must've looked like space ship control panel in the 70's :D
    I guess flat style stereo system's probably were in fashion in the 70's, I remember my parents had flat style silver / black Philips RH 851 in the 70's - 80's in the living room, and it existed as a garage radio at least until the 2000's.

  • @Ogma3bandcamp
    @Ogma3bandcamp 3 місяці тому +1

    I still have my old B&O Beolab 1700 amp with the same issue. One channel down. I might have a look at it unless anyone's interested in buying it. I'm in Ireland and it's bloody heavy.

  • @eriksmith6097
    @eriksmith6097 3 місяці тому +6

    I'm not surprised those sliders wore out. The displays look so good you can't help playing with them. 😃

  • @HopelessUsername
    @HopelessUsername 3 місяці тому +1

    This was great 👍I have one with the same faults and would have been out of my depth without your video. Thanks.

  • @jasonbass2973
    @jasonbass2973 3 місяці тому

    What a beautiful stereo! Looks very futuristic for the 70's.

  • @spooktasticaparanormal
    @spooktasticaparanormal 3 місяці тому +1

    What a thouroughly entertaining video Vince. It's given me the kick up the arse I need to finish some of my projects. Happy fixing. Paul. 😎

  • @electronash
    @electronash 3 місяці тому +1

    Great restore on this one, Vince. It looked really nice at the end.
    I had to keep pausing the vid a few times, and watch it in chunks, but I'm not complaining. lol

  • @tomharris1457
    @tomharris1457 3 місяці тому

    Nice repair of a beautiful bit of kit!

  • @didierdubos
    @didierdubos 3 місяці тому +1

    Thanks for the video. I use to repair B&O (beocenter 9000, beocords..) and I always find these so beautifull and well made.

  • @davidcenteau-depina6192
    @davidcenteau-depina6192 3 місяці тому

    Excellent video! For me, the Bang & Olufsen design from the '60s and '70s has a much more timeless design than their products from the '80s.

  • @nevillegoddard4966
    @nevillegoddard4966 3 місяці тому

    Great work mate keeping a rare & interesting piece of 'old' equipment working! 😃👍!

  • @thegees
    @thegees 3 місяці тому +3

    bass and treble lights are going to be blown faster because they're on all the time rather than the fm ones. i remember the last video all those years ago too, the light tech is still interesting