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

RCA R-73 RESTORATION
#13

Hi Arran and Morzh,

If those GE sets were built between 1931 and 1934, they were built by RCA. My GE S-22A is an RCA. The GE label is slapped right over the RCA R-7a label. Same with the Westinghouse version. Those W'house Columnaires were Radiola 80s with a clock. My S22 has Marshon wet electrolytics, but your filters are in the "Cap Pack located on the left front of the chassis. RCA did use dry 'lytics in some sets in 1933. (my R-28 has a dry lytic cap. Hope that the Cap Pack is not potted but I don't hold much hope for that. Per the RCA Red Book for the R73 has filters of 12uF before the field coil and 8uF after. Field coil is in the B- leg of the power supply instead of the B+ which was RCAs habit for previous models like the Radiola 80

Frequencies higher than about 1,550KHz were reserved for police and marine bands. Only after they moved police up to FM did they extend the range of the broadcast band to 1,700 KHz That's why the R73 tops out at that frequency.

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

Best Regards, 

MrFixr55


Messages In This Thread
RCA R-73 RESTORATION - by morzh - 02-19-2023, 05:11 PM
RE: RCA R-73 RESTORATION - by Brad Winder - 02-19-2023, 07:25 PM
RE: RCA R-73 RESTORATION - by morzh - 02-19-2023, 08:32 PM
RE: RCA R-73 RESTORATION - by David - 02-19-2023, 08:39 PM
RE: RCA R-73 RESTORATION - by GarySP - 02-19-2023, 10:03 PM
RE: RCA R-73 RESTORATION - by MrFixr55 - 02-19-2023, 10:20 PM
RE: RCA R-73 RESTORATION - by radiorich - 02-19-2023, 11:49 PM
RE: RCA R-73 RESTORATION - by morzh - 02-20-2023, 09:50 AM
RE: RCA R-73 RESTORATION - by Eliot Ness - 02-20-2023, 11:28 AM
RE: RCA R-73 RESTORATION - by morzh - 02-20-2023, 02:03 PM
RE: RCA R-73 RESTORATION - by MrFixr55 - 02-20-2023, 03:15 PM
RE: RCA R-73 RESTORATION - by Arran - 02-20-2023, 03:41 PM
RE: RCA R-73 RESTORATION - by MrFixr55 - 02-20-2023, 08:02 PM
RE: RCA R-73 RESTORATION - by Ron Ramirez - 02-20-2023, 08:44 PM
RE: RCA R-73 RESTORATION - by GarySP - 02-20-2023, 11:19 PM
RE: RCA R-73 RESTORATION - by morzh - 02-21-2023, 01:08 PM
RE: RCA R-73 RESTORATION - by Arran - 02-21-2023, 04:45 PM
RE: RCA R-73 RESTORATION - by morzh - 02-25-2023, 08:24 PM
RE: RCA R-73 RESTORATION - by GarySP - 02-26-2023, 01:54 PM
RE: RCA R-73 RESTORATION - by morzh - 02-26-2023, 03:03 PM
RE: RCA R-73 RESTORATION - by MrFixr55 - 02-26-2023, 10:42 PM
RE: RCA R-73 RESTORATION - by MrFixr55 - 02-26-2023, 11:02 PM
RE: RCA R-73 RESTORATION - by Arran - 02-26-2023, 11:22 PM
RE: RCA R-73 RESTORATION - by morzh - 02-26-2023, 11:31 PM
RE: RCA R-73 RESTORATION - by MrFixr55 - 02-27-2023, 01:01 AM
RE: RCA R-73 RESTORATION - by radiorich - 02-27-2023, 02:25 AM
RE: RCA R-73 RESTORATION - by morzh - 02-27-2023, 09:19 AM
RE: RCA R-73 RESTORATION - by Arran - 02-28-2023, 05:48 PM
RE: RCA R-73 RESTORATION - by MrFixr55 - 02-28-2023, 08:24 PM
RE: RCA R-73 RESTORATION - by morzh - 03-01-2023, 08:39 PM
RE: RCA R-73 RESTORATION - by MrFixr55 - 03-04-2023, 11:19 PM
RE: RCA R-73 RESTORATION - by radiorich - 03-04-2023, 11:50 PM
RE: RCA R-73 RESTORATION - by morzh - 03-05-2023, 01:44 PM
RE: RCA R-73 RESTORATION - by morzh - 03-05-2023, 09:58 PM
RE: RCA R-73 RESTORATION - by morzh - 03-05-2023, 11:10 PM
RE: RCA R-73 RESTORATION - by radiorich - 03-06-2023, 08:57 AM
RE: RCA R-73 RESTORATION - by RodB - 03-06-2023, 09:37 AM
RE: RCA R-73 RESTORATION - by morzh - 03-06-2023, 11:11 AM
RE: RCA R-73 RESTORATION - by morzh - 03-06-2023, 12:54 PM
RE: RCA R-73 RESTORATION - by morzh - 03-06-2023, 01:06 PM
RE: RCA R-73 RESTORATION - by RadioSvit - 03-06-2023, 01:13 PM
RE: RCA R-73 RESTORATION - by RadioSvit - 03-06-2023, 01:23 PM
RE: RCA R-73 RESTORATION - by morzh - 03-06-2023, 02:31 PM
RE: RCA R-73 RESTORATION - by MrFixr55 - 03-06-2023, 06:04 PM
RE: RCA R-73 RESTORATION - by Chas - 03-06-2023, 07:48 PM
RE: RCA R-73 RESTORATION - by MrFixr55 - 03-07-2023, 06:21 AM
RE: RCA R-73 RESTORATION - by morzh - 03-07-2023, 11:53 AM
RE: RCA R-73 RESTORATION - by morzh - 03-09-2023, 04:31 PM
RE: RCA R-73 RESTORATION - by MrFixr55 - 03-10-2023, 01:10 AM
RE: RCA R-73 RESTORATION - by RadioSvit - 03-10-2023, 05:24 AM
RE: RCA R-73 RESTORATION - by morzh - 03-12-2023, 04:38 PM
RE: RCA R-73 RESTORATION - by morzh - 03-14-2023, 10:32 PM
RE: RCA R-73 RESTORATION - by RodB - 03-15-2023, 10:14 AM
RE: RCA R-73 RESTORATION - by morzh - 03-15-2023, 02:34 PM
RE: RCA R-73 RESTORATION - by morzh - 03-18-2023, 01:43 PM
RE: RCA R-73 RESTORATION - by morzh - 03-19-2023, 09:52 PM
RE: RCA R-73 RESTORATION - by morzh - 03-20-2023, 09:16 PM
RE: RCA R-73 RESTORATION - by Arran - 03-21-2023, 12:48 AM
RE: RCA R-73 RESTORATION - by morzh - 03-21-2023, 08:34 AM
RE: RCA R-73 RESTORATION - by MrFixr55 - 03-22-2023, 08:09 AM
RE: RCA R-73 RESTORATION - by Ron Ramirez - 03-22-2023, 10:10 AM
RE: RCA R-73 RESTORATION - by morzh - 03-22-2023, 01:30 PM
RE: RCA R-73 RESTORATION - by Arran - 03-22-2023, 04:59 PM
RE: RCA R-73 RESTORATION - by morzh - 03-22-2023, 07:22 PM
RE: RCA R-73 RESTORATION - by morzh - 03-22-2023, 11:30 PM
RE: RCA R-73 RESTORATION - by MrFixr55 - 03-23-2023, 05:45 PM
RE: RCA R-73 RESTORATION - by Ron Ramirez - 03-23-2023, 07:18 PM
RE: RCA R-73 RESTORATION - by morzh - 03-23-2023, 08:47 PM
RE: RCA R-73 RESTORATION - by MrFixr55 - 03-24-2023, 08:35 AM
RE: RCA R-73 RESTORATION - by Ron Ramirez - 03-24-2023, 09:10 AM
RE: RCA R-73 RESTORATION - by Chas - 03-24-2023, 10:19 AM
RE: RCA R-73 RESTORATION - by morzh - 04-01-2023, 05:20 PM
RE: RCA R-73 RESTORATION - by morzh - 04-01-2023, 05:26 PM
RE: RCA R-73 RESTORATION - by morzh - 04-08-2023, 04:04 PM
RE: RCA R-73 RESTORATION - by morzh - 04-12-2023, 09:18 PM
RE: RCA R-73 RESTORATION - by MrFixr55 - 04-13-2023, 09:47 AM
RE: RCA R-73 RESTORATION - by morzh - 04-13-2023, 10:31 PM
RE: RCA R-73 RESTORATION - by MrFixr55 - 04-14-2023, 07:28 AM
RE: RCA R-73 RESTORATION - by morzh - 04-14-2023, 06:48 PM
RE: RCA R-73 RESTORATION - by morzh - 05-07-2023, 02:31 PM
RE: RCA R-73 RESTORATION - by morzh - 05-21-2023, 03:45 PM
RE: RCA R-73 RESTORATION - by MrFixr55 - 05-21-2023, 11:09 PM
RE: RCA R-73 RESTORATION - by morzh - 05-22-2023, 01:16 PM
RE: RCA R-73 RESTORATION - by RadioSvit - 05-22-2023, 01:40 PM
RE: RCA R-73 RESTORATION - by morzh - 05-22-2023, 02:19 PM
RE: RCA R-73 RESTORATION - by morzh - 05-27-2023, 07:46 PM
RE: RCA R-73 RESTORATION - by Joe Rossi - 05-27-2023, 08:15 PM
RE: RCA R-73 RESTORATION - by morzh - 05-27-2023, 09:24 PM
RE: RCA R-73 RESTORATION - by Ron Ramirez - 05-27-2023, 09:29 PM
RE: RCA R-73 RESTORATION - by morzh - 05-27-2023, 09:41 PM
RE: RCA R-73 RESTORATION - by Steve Davis - 05-27-2023, 10:20 PM
RE: RCA R-73 RESTORATION - by morzh - 05-27-2023, 10:29 PM
RE: RCA R-73 RESTORATION - by Arran - 05-28-2023, 12:54 AM
RE: RCA R-73 RESTORATION - by RadioSvit - 05-28-2023, 05:14 AM
RE: RCA R-73 RESTORATION - by morzh - 05-28-2023, 09:55 AM



Users browsing this thread: 18 Guest(s)
[-]
Recent Posts
The list of my radio & TV collection!
Hello Peter, Thank you for posting that !! Sincerely Richardradiorich — 09:40 AM
Eico 232 VTVM Schematic
It's a microwave antenna. ?;-p?. I substituted 1N4002s off the 6.3 vac winding for the 1.5 volt battery. Uniprobe is the...RodB — 05:50 PM
Eico 232 VTVM Schematic
Try BAMA for a schematic. Looks like a replacement power source for the D battery has been installed. The tube may be...Chas — 04:51 PM
Eico 232 VTVM Schematic
Is that a battery holder?morzh — 04:43 PM
Eico 232 VTVM Schematic
A friend gave me this Eico 232 VTVM and I'm having trouble locating the schematic for it. This one seems to be a later v...RodB — 04:17 PM
Var resistor id
Considering what it is in series with, I doubt there should be any power requirements. Of course, we should know wher...morzh — 03:23 PM
Var resistor id
Trim pot, about 1/2 watt part of focus divider. As stated 2k ohms. This appears to be a rusty chassis, resolder all ...Chas — 03:19 PM
Var resistor id
Its a Sylvania 400 oscilloscope. here is a clip of r-100. Would be nice to know the current required. Not listed in part...Martinj — 02:10 PM
The list of my radio & TV collection!
Thanks Richard. I hope you enjoy it. Here I have created an English section on the history of radio with videos in Engl...RadioSvit — 10:23 AM
The list of my radio & TV collection!
Hello RadioSvit, first all happy new year ! I will watch your new videos this week. Sincerely Richardradiorich — 09:19 AM

[-]
Who's Online
There are currently 9393 online users. [Complete List]
» 2 Member(s) | 9391 Guest(s)
AvatarAvatar

>