1933-34 Philco 89B Restoration
Posts: 751
Threads: 91
Joined: Nov 2015
City: Jonesboro
State, Province, Country: AR
Jumping back into this Model 89. My workshop is filling up, and I need to start fixing and selling the sets I don't intend to keep. Label on the back of this one says it is a Code 121. My other 89 that I plan to keep is a Code 123.
I just went through my Cap stock and pulled everything.
Question: Bakelite Block 4989-W: The 200 ohm resistor: Is a 1 Watt replacement sufficient?
Blessings,
Jeff W.
Jonesboro, Arkansas
http://jeffsradios.weebly.com
God loves you as you are, not as you should be, because none of us are as we should be. - Brennan Manning
Posts: 1,402
Threads: 70
Joined: Oct 2007
City: Linn Creek, MO
I would just reinstall the original wire loop. It's better than any resistor you could put in there.
Steve
M R Radios C M Tubes
Posts: 15,819
Threads: 554
Joined: Oct 2011
City: Jackson, NJ
The plate current of the 39/44 tube (if the resistor is the one in the Cathode of it in parallel with the cap) is 6mA max, which will make the dissipated power 0.007 W (7mW), which means that any small resistor will do just fine.
If you could re-use the wire resistor that was there - great. Otherwise use any power you have.
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.
Posts: 7,285
Threads: 268
Joined: Dec 2009
City: Roslyn Pa
This might be a little after the fact but those cloth covered wire wound resistors don't take kindly to flexing or movement. Typically resistance wise they are very stable and should stay in tolerance. Just don't bend it.
When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!
Terry
Posts: 667
Threads: 11
Joined: Sep 2014
City: Bellmawr, NJ
Don't Breath on them,,,and no heat on ends,,,
Posts: 751
Threads: 91
Joined: Nov 2015
City: Jonesboro
State, Province, Country: AR
I wound up replacing the resistor in the bakelite block with a 1 watt I had on hand.
This block and 1 other were done last night.
Electrolytics were replaced today.
I did a quick check of the transformer, some of the coils, and all the resistors.
All checked out, so I decided to turn it on, running it through my variac.
Here's a video I shot during the 1st power up test. All stations came in where they should on the dial.
[Video: https://youtu.be/uxNjHNX4wvs]
Blessings,
Jeff W.
Jonesboro, Arkansas
http://jeffsradios.weebly.com
God loves you as you are, not as you should be, because none of us are as we should be. - Brennan Manning
Posts: 751
Threads: 91
Joined: Nov 2015
City: Jonesboro
State, Province, Country: AR
Last post, showed the radio up and running. I patched a couple pieces of missing wood in the upper part of the grill, did some touch-up work, and gave the cabinet a new coat of toner over the original, and a new grill cloth from Richmond Designs. It went to a new owner just before I left for my trip earlier in January. New owner is really happy, and I'm glad to start thinning out my workshop, and make a little money off the hobby. Here's some glamour shots before it went to its new home.
[Image: https://farm5.staticflickr.com/4578/2712...00f3_b.jpg]
Blessings,
Jeff W.
Jonesboro, Arkansas
http://jeffsradios.weebly.com
God loves you as you are, not as you should be, because none of us are as we should be. - Brennan Manning
Posts: 15,819
Threads: 554
Joined: Oct 2011
City: Jackson, NJ
Looks very nice, Jeff!
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.
Posts: 5,088
Threads: 270
Joined: Nov 2012
City: Wilsonville
State, Province, Country: OR
Users browsing this thread: 2 Guest(s)
|
Recent Posts
|
trying to identify this wire type
|
Thanks to all for the feedback. As Arran said, it is probably an older replacement and yes it has a grid cap so I will ...georgetownjohn — 09:32 PM |
trying to identify this wire type
|
It's possible that the red wire, actually a grid cap lead, is a very old replacement, I can't remember seeing a pre 1939...Arran — 09:18 PM |
Gilfillan Brothers Car Radio?
|
Hi everyone,
Special thanks to Joe Rossi for tracking down this obscure radio and thanks to others who took up the hun...Antipodal — 08:15 PM |
trying to identify this wire type
|
Here's one source for your wire of many.
Take care and BE HEALTHY! Gary
P.S. Can't get the right color you need? I ...GarySP — 06:40 PM |
trying to identify this wire type
|
...and modern wire of the appropriate gauges and insulation V-rating (300V minimum, usually shown right on the wire) is ...morzh — 05:47 PM |
1930s Stromberg-Carlson Tombstone Radio need help identifying model number
|
I have a question about this radio, is there anyone that has access to this radio that has an intact unmolested speaker ...captainclock1988 — 04:28 PM |
1930s Stromberg-Carlson Tombstone Radio need help identifying model number
|
Well what makes me confuse all of those companies is that all three of those companies (Setchell-Carlson, Stromberg-Carl...captainclock1988 — 04:21 PM |
trying to identify this wire type
|
The red wire is rubber covered wire.
The others are cotton braid over rubber often in colors or a tracer, also strand...Chas — 02:43 PM |
trying to identify this wire type
|
Greetings Phorum members,
Hope you can help me identify this type of wire in the photo I have attached. I am not sure ...georgetownjohn — 01:53 PM |
Philco 60 Squealing
|
All correct shields must be in place, all tubes correct no subs of any kind.
Check any soldered, riveted ground conne...Chas — 01:24 PM |
Who's Online
|
There are currently 5906 online users. [Complete List] » 1 Member(s) | 5905 Guest(s)
|
|
|
|