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Nathan's Philco 118MX
#21

Thanks Bob!  Icon_wave

I won't post much on the electronic restoration - so I'll just add it here to this thread.

6.5K Resistor

Part #60 - the large wire-wound resistor - tested open.

After replacing it with the one from a parts chassis and putting in new electrolytics I tried bringing it up on a variac. No sound...

Speaker

Even though the speaker looked to be in really clean condition the output transformer tested open.

Fortunately I have a spare H-13 speaker. And it lives! Actually it works pretty well but I'll still go through and restuff all the caps.  Icon_thumbup

Tuning Condenser

After making sure it was mostly working I got to the root of the original problem - the one that resulted in an extra hole. I swapped in the tuning assembly from a parts chassis. It was also the perfect time to put in new tuner rubber mounting grommets.

Before:

[Image: https://farm5.staticflickr.com/4063/3488...3fd7_z.jpg]

Note the addition of a shaft parallel to the tuning condenser axis. The original mechanism uses a pulley system to give much finer control.

After:

[Image: https://farm5.staticflickr.com/4432/3558...7fba_z.jpg]

[Image: https://farm5.staticflickr.com/4417/3558...c469_z.jpg]

[Image: https://farm5.staticflickr.com/4407/3635...bcea_z.jpg]

(Tone control is out.)

Shadow Meter

The shadow meter tests good, although it doesn't move much. I verified that it moves correctly using a 9V battery. It will likely do much better after I restuff all of the paper caps and align it.


Messages In This Thread
Nathan's Philco 118MX - by Nathan Slingerland - 07-04-2017, 09:13 PM
RE: Nathan's Philco 118MX - by Nathan Slingerland - 07-04-2017, 09:17 PM
RE: Nathan's Philco 118MX - by Nathan Slingerland - 07-04-2017, 09:24 PM
RE: Nathan's Philco 118MX - by Ron Ramirez - 07-05-2017, 05:04 AM
RE: Nathan's Philco 118MX - by OldRestorer - 07-05-2017, 05:41 AM
RE: Nathan's Philco 118MX - by Nathan Slingerland - 07-05-2017, 08:59 AM
RE: Nathan's Philco 118MX - by Nathan Slingerland - 07-06-2017, 10:36 PM
RE: Nathan's Philco 118MX - by Nathan Slingerland - 07-18-2017, 11:12 PM
RE: Nathan's Philco 118MX - by klondike98 - 07-19-2017, 07:05 AM
RE: Nathan's Philco 118MX - by OldRestorer - 07-19-2017, 07:24 AM
RE: Nathan's Philco 118MX - by Radioroslyn - 07-19-2017, 09:29 AM
RE: Nathan's Philco 118MX - by Ron Ramirez - 07-20-2017, 04:57 PM
RE: Nathan's Philco 118MX - by Nathan Slingerland - 07-20-2017, 05:11 PM
RE: Nathan's Philco 118MX - by Bob Andersen - 07-21-2017, 04:40 PM
RE: Nathan's Philco 118MX - by Nathan Slingerland - 07-21-2017, 07:16 PM
RE: Nathan's Philco 118MX - by OldRestorer - 07-23-2017, 11:13 AM
RE: Nathan's Philco 118MX - by Nathan Slingerland - 08-04-2017, 09:43 PM
RE: Nathan's Philco 118MX - by OldRestorer - 08-05-2017, 10:22 AM
RE: Nathan's Philco 118MX - by Nathan Slingerland - 08-05-2017, 11:00 AM
RE: Nathan's Philco 118MX - by klondike98 - 08-05-2017, 04:31 PM
RE: Nathan's Philco 118MX - by Nathan Slingerland - 08-05-2017, 08:41 PM
RE: Nathan's Philco 118MX - by Nathan Slingerland - 08-06-2017, 05:33 PM
RE: Nathan's Philco 118MX - by Fred Taylor - 08-07-2017, 06:22 AM



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