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

Thread Closed
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

Nathan's Philco 15X Restoration
#5

The recap went fine. I restuffed the electolytics - I happened to have another nickel over copper can like the remaining Philco cap.

Restuffing the blocks was made much easier thanks to Steve Davis' Philco Service Tools. Awesome!

The contents came out of the metal cans easily - including the filter block.

[Image: https://farm5.staticflickr.com/4912/3106...70b8_z.jpg]

[Image: https://farm5.staticflickr.com/4820/3106...f486_z.jpg]

After replacing the filter caps and restuffing half of the blocks I decided to bring it up on the variac.
It had good volume but only received noise / static. That is until I moved my hand near the grid cap of the 1st detector when it suddenly started receiving clearly. Uh oh....

That made me pretty suspicious that a coil was bad. I went through them and found that sure enough part 15 (Part No. 3884-V) ('Detector Transformer') had an open primary. A common problem on this era of set.

Fortunately the Philco Repair Bench has info on exactly this issue:
http://www.philcorepairbench.com/rewindi...-rf-coils/

I pulled the coil and you can see from all of the green spots that it's exactly the problem described:

[Image: https://farm5.staticflickr.com/4841/4602...d136_z.jpg]


Messages In This Thread
RE: Nathan's Philco 15X Restoration - by Nathan Slingerland - 11-24-2018, 11:25 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Philco Model 38-7: what caps & resistors do fail typically?
Hi all, on vacation in Montreal,  a friend of mine showed me a Philco Model 38-7 console radio from the 30ies. Mechan...Musaeum — 07:21 PM
Part numbers to model cross
I looked thru the documents and did not see one. Might have missed it though.Jim Dutridge — 07:16 PM
Philco 42-345 Restoration/Repair
Please tell me this was it, I replaced resistor 27 and it's playing on the broadcast band. I am afraid to change the ban...osanders0311 — 06:12 PM
Philco 42-345 Restoration/Repair
So far still no broadcast, I am posting pictures of #14 Oscillator and also a resistor #27 which connects to an XXL tube...osanders0311 — 04:02 PM
Part numbers to model cross
I believe there is that document, and I think we might have it in the Library.morzh — 03:29 PM
Philco 42-345 Restoration/Repair
Ok MrFixr55,  I have tried the DeoxIT D5 on the band switch and even though it has relieved the tension I felt when turn...osanders0311 — 11:11 AM
Part numbers to model cross
Is there a reference somewhere where you can punch in Philco part numbers and see what models those parts were used in?Jim Dutridge — 10:17 AM
Philco 42-345 Restoration/Repair
Hi OSanders, Look carefully at the band switch. Turn it slowly and "wiggle" it around the desired band. ...MrFixr55 — 12:33 AM
5U4 vs 5Z4 tubes
I think that RCA and GE introduced metal tubes in the USA in 1936.  I don't know if they were being made by RCA, GE or b...MrFixr55 — 11:20 PM
Philco 42-345 Restoration/Repair
Vlad95, Thank you for the stringing guides and wow there are so manyosanders0311 — 06:01 PM

[-]
Who's Online
There are currently 1016 online users. [Complete List]
» 2 Member(s) | 1014 Guest(s)
AvatarAvatar

>