Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

Bang & Olufsen Master de Luxe 39 S
#5

Thanks for the nice replies!

I'm sure I will find this phorum very helpful, especially when I start on the Philco 37-690

@Bill,
It is interesting to see that a vintage danish radio found its way to the USA. I saw that particular Master 38K in the collection from where I bought my 39S. It is a beautiful radio! Mine has the more normal 440kHz IF frequency though.

@Arran,
Sometimes I do the trick you mention, by re-stuffing the old capacitors. In this case I couldn't do it, because those caps I replaced, had already been replaced once, probably in the 50's, with Jensen oilcaps. They become very unreliable with age, so I always replace them. Here we only have the white melt glue. I will be checking on the internet for the brown type, as it will be much easier to get a nice result than with the white one.
Variable bandwith was pretty common over here. Of course not on the cheaper sets, but most, if not all, the better ones had it. Both mechanical and electrical systems where used. On the older sets I think it was always mechanical. I never really got the point in having variable bandwith over here though, as no station at all had a wider bandwith than 9kHz. So a greater fidelity was never possible, but it might have been a good sales argument. I read that in the USA, especially in the 50's, several stations were transmitting with a much wider bandwith, allowing high fidelity receiving on AM. This was never the case over here. I use a sstran transmitter in my house and it uses a wide bandwith, making it possible to receive in a better guality on the sets with variable bandwith.
The side contact bases are calles P-type bases over here. As you mention they where very popular here in the late 30's. In the 40's both 2 and 3 different bases where used at the same time, and in the same radios too. Is the black coating on the canadian tubes a conductive coating too? Here the coating was either red, gold, silver or grey, and it is a conductive layer, making further shielding unnecessary.

Jan


Messages In This Thread
Bang & Olufsen Master de Luxe 39 S - by jcr1972 - 12-08-2013, 07:13 AM
RE: Bang & Olufsen Master de Luxe 39 S - by jontz - 12-08-2013, 09:14 AM
RE: Bang & Olufsen Master de Luxe 39 S - by exray - 12-08-2013, 07:08 PM
RE: Bang & Olufsen Master de Luxe 39 S - by Arran - 12-09-2013, 01:35 AM
RE: Bang & Olufsen Master de Luxe 39 S - by jcr1972 - 12-09-2013, 07:07 AM
RE: Bang & Olufsen Master de Luxe 39 S - by Arran - 12-11-2013, 01:28 AM
RE: Bang & Olufsen Master de Luxe 39 S - by Arran - 12-14-2013, 02:06 AM



Users browsing this thread: 2 Guest(s)
[-]
Recent Posts
New Philco Repair Bench
I am sure this is the archive, and not the Chuck's site.morzh — 09:50 PM
Made mistake & did not label connection
It's not like we are good friends with that wire and can tell it from other ptetty identical looking wires. Why'n't you...morzh — 09:49 PM
Made mistake & did not label connection
I'm not sure why that wire wasn't covered in the video. I'm pretty sure the 6A8 won't work until that pin is grounded. Y...RodB — 09:47 PM
Made mistake & did not label connection
You'll have to forgive me, I am not sure what you mean.  Can you explain what you are really saying.  If anyone does not...georgetownjohn — 08:05 PM
Made mistake & did not label connection
Those are details better left to the ones who know. Maybe you disconnected the wrong end of the wire.RodB — 06:22 PM
Made mistake & did not label connection
Maybe this is starting to make some sense in my hard head.  Is this why the wire in question was not in the great Ron Ra...georgetownjohn — 04:34 PM
Made mistake & did not label connection
I was correct with the 6A8 pin connection's, 7 and 8 are connected to ground as well as the tube shield (the broken line...RodB — 02:41 PM
Made mistake & did not label connection
What does the dotted line representing that surrounds the tube in the schematic?georgetownjohn — 02:17 PM
Made mistake & did not label connection
Hello John, I have been there either label got lost or was not labeled ! Sincerely Richardradiorich — 02:15 PM
Made mistake & did not label connection
Sorry, it is a Philco 37-640.  Does that help?--Johngeorgetownjohn — 02:14 PM

[-]
Who's Online
There are currently 4971 online users. [Complete List]
» 2 Member(s) | 4969 Guest(s)
AvatarAvatar

>