Posts by pebmrb (archived)
126 total posts108 results
Stereo light on BM1000 and 900K
in Imported Content (Unmapped) · May 24, 2010 07:39The trimpot for adjusting the lamp sensitivity can be adjusted through a hole in the rear of the chassis on the BM1000(at least on mine anyway).A good start would be to clean it(or replace it)and give it a tweak.Those ca…
advice needed for beomaster 3000-2
in Imported Content (Unmapped) · May 23, 2010 08:02It appears to be normal not to have those lights without an input signal, just tried my fully functional 3000-2 with no antenna and it won't turn the lights on either.Clipping a couple feet of wire to the center pole of …
My latest acquisition
in Imported Content (Unmapped) · May 11, 2010 19:37Very observant Simon,I was indeed only looking for speakers!Somehow Jeff got my wife to see the pics of the receiver/speaker combo.( With my help)😎Anyway,the wife saw the pics of the receiver and liked it,Needless to sa…
advice needed for beomaster 3000-2
in Imported Content (Unmapped) · May 11, 2010 13:57Welcome to the forum Roger! The Beomaster 3000-2 is certainly worth saving.I have one fully restored,and it's an excellent receiver in both function and form.You will find all the help you need on this forum,lots of expe…
My latest acquisition
in Imported Content (Unmapped) · May 11, 2010 12:30Thought I would give an update. All the electrolytic caps have been replaced,idle current trimmers replaced and voltage adjustments have been made,switches and pots cleaned/deoxidized,a few resistors that were barely in …
BM1000 FM detector circuit
in The Workbench · May 11, 2010 10:30Excellent!Thanks. I have a scope.I think I will need to get a signal generator soon.I did move the pot as I was cleaning it,but before moving it I measured the resistance so I could return it to original.I will put the h…
BM1000 FM detector circuit
in The Workbench · May 11, 2010 09:42Thanks Mika Makes sense.I didn't think of that.If the diodes and coils are of fairly loose tolerance then the pot can help compensate for this and a fixed resistor would be difficult or impossible to match.I assume the m…
BM1000 FM detector circuit
in The Workbench · May 11, 2010 08:16I just finished replacing all the electrolytic caps in my BM1000.The amp is sounding excellent with my CDX but the FM was a bit flat sounding with very little stereo separation.In fact when switching the mono switch,I ac…
Polyester caps
in The Workbench · May 1, 2010 12:10Thanks for the great input guys! I can clearly see the differing opinions on this topic.I expected it,and I welcome it.I am glad to hear the experts opinions and am thankful that no one is holding back simply to be agree…
Polyester caps
in The Workbench · Apr 29, 2010 16:24Thanks Menahem I won't be doing the full,cost no object,type restoration you mentioned but I will indeed be checking the resistors and replacing as nessessary.I have used the Dale resistors you mention in some of my tube…
Beogram 4004 problem
in BeoGram · Apr 29, 2010 12:42Very nice Menahem. Is that a vacuum tube socket I see in the background?
Polyester caps
in The Workbench · Apr 29, 2010 08:08Wow,so many good responses.I'm glad I asked. On my last project,a BM3000-2,I replaced every electrolytic.Everything under 10uf was replaced with Polyester caps(most of these were originally tantalums).The balance of the …
Polyester caps
in The Workbench · Apr 28, 2010 12:47Thanks Jacques It is nice to hear some voices of reason on this subject.Glad to hear it,the polyesters are a bit hard on the wallet.I have heard much about the "evils" of electrolytics in the signal path,especially tanta…
Polyester caps
in The Workbench · Apr 28, 2010 10:52Thanks Martin The power supply cap appears to be bad and I suspect the 2 outputs also. I have noticed this unit has more axial electrolytics than most.Some in the PS and quite a few in the MPX section.These all appear to…
Polyester caps
in The Workbench · Apr 28, 2010 09:43I'm getting ready to do a recap on my Beomaster 1000.My general strategy for recapping so far has been to replace all electrolytics 10uf and below with polyester caps.It is my understanding that the modern poyester caps …
Damping factor
in Imported Content (Unmapped) · Apr 28, 2010 07:34I tend to agree Simon.I have seen speaker cables costing thousands of dollars US for just a few meters!Of course the claims of Utopian sound matched the price.Clearly though,as seen by Frede's research,a good low resista…
vintage speaker selection
in Imported Content (Unmapped) · Apr 28, 2010 06:44Thanks for the pic,Simon.That S30 looks like something I need to put on my list.This thread,like all others I have posted,has proven very informative.I started out with almost no knowledge of the real gems that B&O produ…
My latest acquisition
in Imported Content (Unmapped) · Apr 27, 2010 21:38I'm excited! An exceptional Beomaster 1000 and a pair of Beovox 2200s purchased from Jeff (burantek).I couldn't be more pleased with the vintage appeal of this system.As many of you have said the 2200s are very nice litt…
Damping factor
in Imported Content (Unmapped) · Apr 23, 2010 10:29Peter,I didn't know that the B&O engineers had done so much research on this,of course I am not surprised as they seem to have left no stone unturned in any area.I wasn't implying that the B&O cables were sub par,I was s…
Damping factor
in Imported Content (Unmapped) · Apr 23, 2010 06:40Wow.Nice work Frede Amazing how poor the damping factor is on an unrestored amplifier! I was always sceptical about the importance of so called audiophile grade speaker wire but it sounds like it is indeed pretty importa…