Posts: 897
Threads: 37
Joined: Feb 2015
City: Roseville, MN
I restored one a couple years ago. One of the Candohm resistors was open so I removed the wire from inside and replaced with high wattage resistors. The handle can be bought online for about $25+ and I believe this is one that uses brass split rivets as fasteners. If not, then it will be fastened with threaded brass studs and nuts. I used a zener diode on the filament string as a safety precaution.
Rod
Posts: 5,060
Threads: 269
Joined: Nov 2012
City: Bandon
State, Province, Country: OR
Welcome to the Phorum!!
Posts: 897
Threads: 37
Joined: Feb 2015
City: Roseville, MN
I remember something else. The service bulletin states that C304 is omitted. You have to locate that capacitor in the pictorial of the service bulletin because it has been omitted in the schematic, possibly your radio and every where else.
Rod
Posts: 93
Threads: 20
Joined: Aug 2014
City: Greenville, TX
I bought the last two handles from Wayne Thompson a few weeks ago. There is no other source.
Posts: 779
Threads: 48
Joined: Feb 2013
City: Shenandoah,
State, Province, Country: Pennsylvania
One quick note for those restoring one of these radios. I grabbed the electrolytic can with what I thought was just average pressure and it crumbled in my hand like an eggshell. Seems like very weak or thin metal, beware! I didn't start the restoration on mine yet but when I do, I will be posting in the want adds for one.
Ron
Bendix 0626. RCA 8BX5. RCA T64
Philco 41-250. Philco49-500
GE 201. Philco 39-25
Motorola 61X13. Philco 46-42 Crosley 52TQ
Philco 37-116. Philco 70
AK 35 Philco 46-350
Philco 620B. Zenith Transoceanic B-600
Philco 60B. Majestic 50
Philco 52-944. AK 84
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Joined: Nov 2020
City: Federal Way
State, Province, Country: WA 98023
CodeFox,
I know you made a comment a couple of years ago about removing the switch on the Philco 46-350. I am attempting to do the same thing, any suggestions?
Posts: 11
Threads: 1
Joined: Jan 2011
City: San Diego
State, Province, Country: CA
I have one of these gems too. My AC line voltage runs around 124 to 125V. I rebuilt the cadohm with a 75 ohm and two 910 ohm 5 watt resistors. I used a little JB weld to attach the resistors. to the cadohm shell. That gives me B+ 84V on the 3Q5 screen (pin 4) and 8.6V on the filaments. Testing with 110VAC gives 73V B+ and 7.3V on the filaments, and the radio plays well.
I also added a 8.7V 5 watt zener between the 9V end of the cadohm and ground to protect the filaments from any voltage surges. Probably overkill, but who knows.
I replaced my leather handle with 1 inch wide chestnut colored leather strap I bought off of Amazon. Same thickness as the original handle, and surprisingly nice leather. I used a Dremel carving bit to slightly elongate the holes so the strap can pull away slightly when the radio is picked up. Take care not to make the slots too long or they will show when the handle is lifted.
Posts: 27
Threads: 5
Joined: Mar 2024
City: BERTHOUD
State, Province, Country: CO
Hi all, reviving this old post, hoping to get some input on the leather handle. I can't seem to carefully get the darn handle brass/metal hold-downs off. I have two of these units and the newer code unit has nuts on the inside top, but the one I want to replace doesn't. Someone in a previous post in this thread said "I believe this is one that uses brass split rivets as fasteners. If not, then it will be fastened with threaded brass studs and nuts."
If mine has the brass split rivets, how do you pop off the left and right strap hold downs without damaging the wood?
I have a leather saddle maker currently making up some new handles for both units. Just trying not to bunger up the wood getting the strap hold-downs off.
Any tips? Thanks
George
George - Berthoud, Colorado. Learned tube receiver repair and troubleshooting in the Navy way back when, came back around to it as an old guy. Re-learning all I can. Doing my part to restore a few of these old gems.
Posts: 27
Threads: 5
Joined: Mar 2024
City: BERTHOUD
State, Province, Country: CO
Well I figured this out and it was easier than expected. On my unit, turned out the internal antenna perfectly covered 2 screws on each side that held the handle hold-downs in place. Pretty obvious once I carefully pulled back the antenna. I was concerned about damaging the antenna so was reluctant to pull it back. But by removing all the small nails holding it in place, I could slide it front to back carefully and remove the screws to release the handle hold-downs, allowing me to replace the handle. Seems pretty clear now that I know, just figured I would post this update in case someone else struggles with it in the future.
George - Berthoud, Colorado. Learned tube receiver repair and troubleshooting in the Navy way back when, came back around to it as an old guy. Re-learning all I can. Doing my part to restore a few of these old gems.