Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12, 2025) x

Thread Closed

Radiola 48 chassis restoration
#1

I powered the radio up on the variac. you have to turn the volume control to about 2/3 up to get audio. From there on up it goes to full volume.
If you turn it down below the upper third you lose all audio and have to turn it back up. I tested all tubes. ck. good. Checked vol. con trol. it calls for 30 ohms at full on and 50000 at volume all way down. I got 90ohms and 50000. there was a note that said some vol. controls will be higer than the 30ohms. It does change all resistance readings when going from low to high. This control is odd to me it is connected to the ant.on one side and simultaneously the grids of the rf tubes.
When I touch the 24 det. tube grid cap when on station it loses the station and you have to slightly move the tuning cap. to get the signal back.
I checked some of the resistors all are with in 25% or closer.
This will be a challenge to change the caps in. The tar cans are rivoted to the chassis. Any ideas on what I should start with as far as replacing or checking? Thanks for any help.[Image: http://i1336.photobucket.com/albums/o654...25665a.jpg]


Messages In This Thread
Radiola 48 chassis restoration - by KCMike - 05-16-2014, 01:52 PM
RE: Radiola 48 chassis restoration - by KCMike - 05-16-2014, 05:10 PM
RE: Radiola 48 chassis restoration - by Mondial - 05-16-2014, 09:01 PM
RE: Radiola 48 chassis restoration - by KCMike - 05-17-2014, 10:38 AM
RE: Radiola 48 chassis restoration - by Mondial - 05-17-2014, 02:38 PM
RE: Radiola 48 chassis restoration - by codefox1 - 05-17-2014, 04:26 PM
RE: Radiola 48 chassis restoration - by KCMike - 05-17-2014, 07:42 PM
RE: Radiola 48 chassis restoration - by Arran - 05-17-2014, 10:56 PM
RE: Radiola 48 chassis restoration - by gregb - 05-17-2014, 11:12 PM
RE: Radiola 48 chassis restoration - by gregb - 05-17-2014, 11:23 PM
RE: Radiola 48 chassis restoration - by Arran - 05-18-2014, 12:04 AM
RE: Radiola 48 chassis restoration - by KCMike - 05-18-2014, 04:11 PM
RE: Radiola 48 chassis restoration - by Mondial - 05-18-2014, 04:41 PM
RE: Radiola 48 chassis restoration - by KCMike - 05-18-2014, 05:53 PM
RE: Radiola 48 chassis restoration - by KCMike - 05-18-2014, 09:04 PM
RE: Radiola 48 chassis restoration - by Arran - 05-18-2014, 09:12 PM
RE: Radiola 48 chassis restoration - by KCMike - 05-18-2014, 09:45 PM
RE: Radiola 48 chassis restoration - by Arran - 05-18-2014, 10:04 PM
RE: Radiola 48 chassis restoration - by KCMike - 05-19-2014, 08:19 AM
RE: Radiola 48 chassis restoration - by KCMike - 05-19-2014, 11:51 AM
RE: Radiola 48 chassis restoration - by Mondial - 05-19-2014, 09:00 PM
RE: Radiola 48 chassis restoration - by KCMike - 05-20-2014, 08:49 AM
RE: Radiola 48 chassis restoration - by KCMike - 05-20-2014, 12:26 PM
RE: Radiola 48 chassis restoration - by Mondial - 05-20-2014, 09:26 PM
RE: Radiola 48 chassis restoration - by KCMike - 05-20-2014, 09:45 PM
RE: Radiola 48 chassis restoration - by KCMike - 05-21-2014, 06:06 PM
RE: Radiola 48 chassis restoration - by KCMike - 05-22-2014, 08:47 AM
RE: Radiola 48 chassis restoration - by KCMike - 05-22-2014, 09:54 PM
RE: Radiola 48 chassis restoration - by KCMike - 05-23-2014, 10:08 AM
RE: Radiola 48 chassis restoration - by KCMike - 05-23-2014, 03:53 PM
RE: Radiola 48 chassis restoration - by KCMike - 05-23-2014, 06:20 PM
RE: Radiola 48 chassis restoration - by KCMike - 05-23-2014, 10:05 PM
RE: Radiola 48 chassis restoration - by Arran - 05-24-2014, 03:42 AM
RE: Radiola 48 chassis restoration - by gregb - 05-24-2014, 10:39 AM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
HiFi (Chifi) tube amp build - but my own design.
It's the other forum. I'm also in DIY, but mostly read there. Honestly, I kinda jumped into this without much thought to...TV MAN — 10:43 AM
Philco 71 Code 125
Hello,  I am in need of a schematic for this radio. Mine has the three separate circular tube shields and a shadow me...dconant — 08:06 AM
Stromberg Carlson 1500 Squeal
And life just keeps getting more complicated.dconant — 07:57 AM
54C Complete Teardown/Rebuild
Hello Roy, here is this one sincerely Richardradiorich — 12:45 AM
54C Complete Teardown/Rebuild
Richard, Had grabbed it already but thank you just the same.  I find myself wanting to find some way to block out the...glyphmon — 12:03 AM
54C Complete Teardown/Rebuild
Hello roy, here is a link to the schematic . Sincerely Richardradiorich — 11:54 PM
54C Complete Teardown/Rebuild
Richard, The Silvertone 2014 also is a transformerless set, so I am incorporating a 1:1 600 ohm audio isolation transfo...glyphmon — 11:37 PM
Preliminary work on wife's Silvertone 2014
Did an alignment today which was interesting.  IF alignment went great, almost all was already spot-on.  Adjusting on th...glyphmon — 11:35 PM
54C Complete Teardown/Rebuild
The main problem with adding a Bluetooth input is that this set lacks a traditional power transformer to isolate it from...radiorich — 11:19 PM
54C Cabinet Refinish
I started stripping this cabinet before it got super chilly out because I knew I wasn't going to be able to work on ...glyphmon — 11:18 PM

[-]
Who's Online
There are currently 1691 online users. [Complete List]
» 3 Member(s) | 1688 Guest(s)
AvatarAvatarAvatar

>