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: 15,818
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: 15,818
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: 1 Guest(s)
|
|
Recent Posts
|
|
Philco 46-420 Code 121 Reception issues
|
| Welcome Eric,
I agree with Bob and far as the two main electrolytic filter capacitors did you change them yourself or w...radiorich — 11:43 PM |
|
Philco 46-420 Code 121 Reception issues
|
| You mentioned the Philco manual and going through the check points...just to be sure we're on the same page here's the m...klondike98 — 08:13 PM |
|
Philco 42-1008 conversion kit
|
| Interesting. I haven't seen that before.klondike98 — 07:02 PM |
|
12' Philco
|
| Yes I had looked for it on the web as well some time back and could not find it. I was glad to see it turned up in Ron'...klondike98 — 06:59 PM |
|
Shadow Meter Bulb
|
| Now if you had a set with a tuning light then the bulb type is important to the circuit, some sets used those prior to t...Arran — 04:58 PM |
|
Shadow Meter Bulb
|
| Ok. Thanks for the correction.RossH — 03:09 PM |
|
Model 28L
|
| For 28 you will probably need to buy a Hammond 125CSE. Or any of the series of the power you need, with SE suffix. Then ...morzh — 02:09 PM |
|
37-60 revision 6
|
| I am restoring a Philco 37-60 and it shows run 6 they removed the ground from G3 of the 6K7G and put the G3 to -2.5v for...bobbyd1200 — 01:01 PM |
|
Shadow Meter Bulb
|
| Mike is correct on the bulb connection, two separate circuits. I found that by rotating the bulb and sliding it forward ...RodB — 12:19 PM |
|
Hickok AC51 tube tester
|
| Cleaned ann contacts, switches and sockets, works great now.martinj — 11:32 AM |
|
Who's Online
|
| There are currently no members online. |
|
 
|
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
