Philco 48-461 radio restoration

Guest · Post by **Guest** » Mon Mar 07, 2022 3:08 pm

Good job Sherm.
Rocky is guiding and teaching you well!

Post by **Sherman** » Mon Mar 07, 2022 7:40 pm

Thank you Mr Guest. You are very kind.

The grille cloth and one set of led bulbs arrived. I'm going to use the herringbone pattern. Photos tomorrow. I left the replacement resistor in place of the led bulb as before and then just plugged the led bulb in the socket. It worked fine. Then I put it across my 6Vdc lines and it also worked but brighter. I am going to go with the plan described before. DG will be happy hopefully. Also gonna start the top coat tomorrow on radio 1.

On radio 2, I rewired everything back to spec after fixing the short. I'm not going to power it up, though, until the lytics get replaced and also that poor distressed paper one.

I really believe radios have souls.

Britney · Post by **Britney** » Mon Mar 07, 2022 7:43 pm

Me too.

Kisses, Brit.

Post by **Baltasar** » Mon Mar 07, 2022 8:20 pm

TYNEE-DRY

https://antiqueradios.com/forums/viewto ... ?p=3132660

new_guy · Post by **new_guy** » Mon Mar 07, 2022 8:47 pm

Levi · Post by **Levi** » Mon Mar 07, 2022 9:05 pm

new_guy · Post by **new_guy** » Mon Mar 07, 2022 9:12 pm

See you and raise 100.

Levi · Post by **Levi** » Mon Mar 07, 2022 9:33 pm

Raise 200.

Post by **Sherman** » Mon Mar 07, 2022 9:41 pm

If you wanna cry listen to this.

"Light their way when the darkness surrounds them."

new_guy · Post by **new_guy** » Mon Mar 07, 2022 9:51 pm

I fold.

Levi · Post by **Levi** » Mon Mar 07, 2022 9:52 pm

Me too.

Post by **Sherman** » Tue Mar 08, 2022 12:57 pm

Guys, that loctal short wasn't the only short I found. Do y'all think this famous TYNEE-DRY capacitor from radio 2 should have a resistance of 4.6 ohms? Seems a bit low to me.

Consequently, R8 has bought the farm. See that gob of solder on the negative terminal? That was the failed attempt to solder to the chassis.

Post by **Sherman** » Tue Mar 08, 2022 12:59 pm

The led looks great and DG likes it. Even a 6-year-old can find an acorn. I'll show it to you when I get to re-assembling radio 1. I also want to make one more electrical change. When I replaced the Philco 'special' capacitor, I omitted the series inductor (we do have the shunt resistor).

https://www.philcorepairbench.com/i-f-w ... capacitor/

But I read somewhere that receiver sensitivity is better with the inductor. So I have a 0.62 uH inductor on order.

Post by **Albert** » Tue Mar 08, 2022 1:21 pm

Wonder Woman · Post by **Wonder Woman** » Tue Mar 08, 2022 1:28 pm

She's gonna make it through the night.

Post by **Baltasar** » Tue Mar 08, 2022 2:05 pm

Post by **Sherman** » Wed Mar 09, 2022 11:55 am

I think you guys are just trying to distract from my brilliance. It won't work!

Guys, check out this link, especially the Elements of Radio Servicing book.

https://antiqueradios.com/archive.shtml

Britney · Post by **Britney** » Wed Mar 09, 2022 12:13 pm

Gave my anus curly-whirly?

Boris · Post by **Boris** » Wed Mar 09, 2022 12:14 pm

came by in his curly-wurly and asked me if I needed a ride

Post by **Bullwinkle** » Wed Mar 09, 2022 12:21 pm

Guitar solo at 3:40 is intense.

Post by **Natasha** » Wed Mar 09, 2022 12:26 pm

I wanna hookup with the drummer.

Post by **Sherman** » Wed Mar 09, 2022 12:27 pm

I hate you guys.

Wonder Woman · Post by **Wonder Woman** » Wed Mar 09, 2022 12:44 pm

Natasha wrote: ↑
Wed Mar 09, 2022 12:26 pm
I wanna hookup with the drummer.

You better ask your mama.

Post by **Sherman** » Wed Mar 09, 2022 2:25 pm

The patient has a pulse! Radio 2 is sitting up and talking. In the photo below you can see that I have patched in the new lytics and replaced R8 and C23. You can see their burned-out hulks at the bottom left. That was caused by the shorted lytic and maybe helped by the B- to chassis short. I also rough aligned it and it is performing quite well. Gonna do the line dropping resistor and led changes. Right now it's running off the variac at 110Vac. May leave the special cap and the other paper caps alone. Cabinet may be left original for comparison.

On radio 1, I have installed the bypass inductor. No obvious difference but that is the factory design, so. I also completed the 4th staining and final touch-up and DG gave me the go-ahead to topcoat it after it dries.

Curly · Post by **Curly** » Wed Mar 09, 2022 4:29 pm

Looks like Rocky lying in his hospital bed with all the tubes and wires keeping him alive.

https://rationalqm.us/board/viewtopic.p ... 238#p13238