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

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

Working on Philco 46-350 radio
#33

This part is called a candohm and there is no reason to replace it unless it is open or shorted to the chassis. It is a multiple tapped wirewound power resistor and will get quite warm when the set is on. If you put it back the way it was you should be fine. The voltage will go down quite a bit when this load is applied. In addition to supplying the B+, this setup also provides the filament voltage (8.5 volts)

Again refer to the model 48-360 on Nostalgia, because the diagrams are much clearer, and the two sets are nearly identical. On that diagram the candohm contains R100A, R100B, and R100C.

When it is all back together, the set should be brought up slowly using a variac this time with the tubes in it. You can monitor the filament voltage as you bring it up. Do not let it go above 8.5 volts. If the voltages are still too high, you may have to add another power resistor at the beginning of the chain (before R100A) The line voltage was a lot lower when these sets were designed.


Messages In This Thread
Working on Philco 46-350 radio - by Deathstryker - 07-08-2011, 07:27 AM
Re: Working on Philco 46-350 radio - by John R - 07-08-2011, 01:16 PM
Re: Working on Philco 46-350 radio - by codefox1 - 07-08-2011, 08:48 PM
Re: Working on Philco 46-350 radio - by codefox1 - 07-09-2011, 02:46 PM
Re: Working on Philco 46-350 radio - by codefox1 - 07-09-2011, 05:38 PM
Re: Working on Philco 46-350 radio - by codefox1 - 07-09-2011, 11:10 PM
Re: Working on Philco 46-350 radio - by Marsupial - 07-16-2011, 04:05 PM
Re: Working on Philco 46-350 radio - by codefox1 - 07-16-2011, 04:55 PM
Re: Working on Philco 46-350 radio - by Marsupial - 07-16-2011, 10:13 PM
Re: Working on Philco 46-350 radio - by Marsupial - 07-17-2011, 08:38 PM
Re: Working on Philco 46-350 radio - by codefox1 - 07-23-2011, 02:01 PM
Re: Working on Philco 46-350 radio - by codefox1 - 07-23-2011, 06:22 PM
Re: Working on Philco 46-350 radio - by codefox1 - 07-23-2011, 11:39 PM
Re: Working on Philco 46-350 radio - by codefox1 - 07-24-2011, 11:31 AM
Re: Working on Philco 46-350 radio - by codefox1 - 07-25-2011, 10:10 AM
Re: Working on Philco 46-350 radio - by codefox1 - 07-25-2011, 07:53 PM
Re: Working on Philco 46-350 radio - by codefox1 - 07-26-2011, 10:50 AM
Re: Working on Philco 46-350 radio - by codefox1 - 07-28-2011, 10:30 PM
Re: Working on Philco 46-350 radio - by Raleigh - 08-04-2011, 12:23 AM
Re: Working on Philco 46-350 radio - by codefox1 - 08-05-2011, 05:26 AM



Users browsing this thread: 17 Guest(s)
[-]
Recent Posts
The speaker table error?
G  10-1/2"       65, 76, 87, 95 Push-Pull 45's 2766 0.7 550 3200 H   10-1/2"    77, 96 Push-Pull...morzh — 09:26 PM
A Marconi model 86
I have a Stromberg, one of the early ones, seems early 30s. This is what I call a back breaker. None of the early Philc...morzh — 08:28 PM
A Marconi model 86
A backbreaker.....PaulPaul Philco322 — 08:12 PM
A Marconi model 86
>>What a behemoth! A Juggernaut.morzh — 07:47 PM
Philco 70 antenna lead
I am not sure I understood about the coils and the mush. I looked an more than one coil in 20, 70, 90, 60, Zeniths and ...morzh — 07:46 PM
A Marconi model 86
:e_biggrin: What a behemoth!  I hope the final result is as much a quality sounding example!  Keep us posted on your pro...GarySP — 07:32 PM
A Marconi model 86
I should add that the double conversion may only be used on the shortwave bands, but I haven't looked at the schematic t...Arran — 07:27 PM
Philco 70 antenna lead
Yes, that wire will not pick up much interference as routed - the RF at that level won't be affected, and if you have st...radio1 — 07:26 PM
Philco model 60
I'm also a member of MARC. Did you attend the Vintage Electronics Expo in Waterford, MI last month? That's where I got...GarySP — 07:22 PM
A Marconi model 86
Dan Double conversion is using two IF converters instead of one. This improves the image response. morzh — 07:15 PM

[-]
Who's Online
There are currently no members online.

>