Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12) x

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

A Marconi model 86
#1

I am picking up this radio today. The seller tells me it is all there and working.including the tuning eye.
It has 13 tubes and the Marconi cabinets are always very nice. I will recap it .  It is a model 86.
Dan in Calgary


Attached Files Image(s)
                           

   Living in Calgary Alberta
#2

Ooh, very nice!

Joseph

Philco 46-480
Philco 49-906
#3

An imposing-looking radio, for sure.

People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
#4

My back hurts already, you could build a house with all the wood. Paul

Tubetalk1
#5

Yeah. I am dreading the thought of what to do with all my consoles when I will no longer be able to move them around.
I'll bequeath them to a museum...

People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
#6

Dan;
I've seen some Marconi sets like that before, one was a console though I'm not sure if it was a model 86. It's almost like they had the cabinets made up already, and at the last minute decided they wanted to use a slide rule dial on the chassis rather then an oval one. https://jproc.ca/marconi/home_ent/086_087.html Apparently the set has double conversion, and squelch, so you might want to go a little more in-depth then just recapping the set, also changing out any drifted resistors, and find someone who knows how to re-align a double conversion set.
Regards
Arran
#7

Thanks Arran;
I don't even know what a double conversion is, but i do have a good friend In Nova Scotia
that would know.
So for now , need to get my neighbor to help me get it out of my truck.
It weighs as much as my Rogers 10-12.
Dan in Calgary

   Living in Calgary Alberta
#8

Dan

Double conversion is using two IF converters instead of one. This improves the image response.

https://en.wikipedia.org/wiki/Superheter...conversion

People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
#9

I should add that the double conversion may only be used on the shortwave bands, but I haven't looked at the schematic to confirm. Basically you have two oscillators and two sets of IF transformers, set to different frequencies, it's to improved selectivity, and as MIke said to improve image rejection. Canadian Marconi used to build a lot of radios for military and commercial use, as well as domestic stuff, so they may have done this to create an economy of scale for production purposes. Some also have variable IF bandwidth, but unlike the Rogers sets it was done electrically rather then mechanically, as in the Rogers 10-12. I'm not surprised that the model 86 is heavy, the chassis has 13 tubes, and the cabinet is probably 1'' thick on the sides.
Regards
Arran
#10

Icon_e_biggrin What a behemoth!  I hope the final result is as much a quality sounding example!  Keep us posted on your progress.  Take care and BE HEALTHY!   Gary

"Don't pity the dead, pity the living, above all, those living without love."
Professor Albus Dumbledore
Gary - Westland Michigan
#11

>>What a behemoth!

A Juggernaut.

People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
#12

A backbreaker.....Paul

Tubetalk1
#13

I have a Stromberg, one of the early ones, seems early 30s.
This is what I call a back breaker. None of the early Philco "...boys" with pan chassis even come close. My wife and I were carrying it together, and she dropped it. This is about twice the weight. I have it for over 10 years, and still have not been able to take upon it.
One day, shouild I live long enough, one day...

People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
#14

May be a backbreaker but with 2 6L6s and a 5Z3 rectifier, this thing should ROCK!

The schematic is on RadioMuseum I have a copy.

"Do Justly, love Mercy and walk humbly with your God"- Micah 6:8
"Let us begin to do good"- St. Francis

Best Regards, 

MrFixr55
#15

I still have the Marconi  in the garage and have not taken the chassis out yet. I have a couple of others ahead of it as far as recapping is concerned.thanks for the raplys
 Dan in Calgary.  PS I am still looking for knobs for this radio.

   Living in Calgary Alberta




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Zenith H725
"Maybe its a later production run" -Yes I think so, internal stamp on one area proclaims June 1954, and ear...EdHolland — 06:42 PM
Zenith H725
Ed; If you find that there is a problem with the mica caps in the IF cans, if you have some way of measuring the capac...Arran — 06:40 PM
Zenith H725
Arran - thanks, I'll chase those easier things first. The sockets and pins were dirty, and there was a bit of crackling ...EdHolland — 11:49 AM
38-690 Gill Cloth
The 37 and 38-690 use the Philco ribbed cloth; Michael Katz sells a nice reproduction of it.Brad Winder — 09:06 AM
philco 91 detector transformer
thank youmg34.42 — 12:15 AM
Zenith H725
Ed; Before getting into the IF cans I try to make sure that the tube sockets, and tube pins are clean, those 7 and 9 p...Arran — 11:42 PM
Zenith H725
Well something isn't right, there's a lot of crackling, particularly on AM, but it seems also to affect FM to an extent....EdHolland — 10:46 PM
Zenith H725
Hello Ed, That is wonderful news and far as dim bulb tester I need to build a new one . You, are lucky that nothing g...radiorich — 10:33 PM
Zenith H725
Cap replacement is completed. (Excepting PSU filters for now). A cautious power up got the expected behaviour of the dim...EdHolland — 06:56 PM
Philco model #20
The interstage transformer has to take some serious current, 3-5mA, which is not a small thing considering the signal am...morzh — 06:19 PM

[-]
Who's Online
There are currently 678 online users. [Complete List]
» 2 Member(s) | 676 Guest(s)
AvatarAvatar

>