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Nathan's 38-116XX Restoration
#20

OK - Once more unto the breach, dear friends...

RF Subchassis

Step 1 - Label and Desolder Connections to RF Subchassis

[Image: https://farm8.staticflickr.com/7875/3169...1e57_z.jpg]

[Image: https://farm5.staticflickr.com/4862/3169...10ae_m.jpg] [Image: https://farm8.staticflickr.com/7847/4572...5ef9_m.jpg]
[Image: https://farm8.staticflickr.com/7809/4658...f8f6_m.jpg] [Image: https://farm8.staticflickr.com/7906/4663...d3cb_m.jpg]
[Image: https://farm5.staticflickr.com/4835/3967...29b0_m.jpg] [Image: https://farm8.staticflickr.com/7886/4572...a40a_m.jpg]
[Image: https://farm8.staticflickr.com/7851/3169...6363_m.jpg] [Image: https://farm5.staticflickr.com/4888/4658...9db3_m.jpg]

Step 2 - Remove Lights and Front Panel

[Image: https://farm5.staticflickr.com/4913/4658...d5cd_z.jpg]

[Image: https://farm5.staticflickr.com/4887/4658...3d7a_z.jpg]

[Image: https://farm8.staticflickr.com/7801/4658...b081_z.jpg]

Step 3 - Remove RF Subchassis

Remove the screw at the back of the RF subchassis.

[Image: https://farm8.staticflickr.com/7922/4591...2c02_z.jpg] [Image: https://farm8.staticflickr.com/7852/4658...50f5_z.jpg]

Now carefully (!) tilt the whole thing forward.

[Image: https://farm8.staticflickr.com/7809/4591...0310_z.jpg]

[Image: https://farm5.staticflickr.com/4817/3169...1109_z.jpg]

Step 4 - Remove Sides and Restuff Caps

[Image: https://farm5.staticflickr.com/4889/4591...4134_z.jpg]

On some of the RF subchassis sets the capacitors are so buried it's also necessary to slide out the shaft and work on each section individually.
Fortunately the 38-116 isn't quite that bad - all of the caps are accessible without fully disassembling the RF subchassis.

And don't forget this guy!

[Image: https://farm8.staticflickr.com/7870/4663...6025_z.jpg] [Image: https://farm8.staticflickr.com/7834/3169...b089_z.jpg]

Step 5 - Bandswitch

While I had everything apart I applied some DeOxit to the bandswitch contacts.

[Image: https://farm8.staticflickr.com/7872/3171...f1d1_z.jpg]

Step 6 - Back Together

[Image: https://farm5.staticflickr.com/4834/3969...93b5_z.jpg]

Reinstall the RF subchassis. I also replaced the rubber mounts using replacements from renovatedradios.com.

[Image: https://farm8.staticflickr.com/7882/4665...ecc3_z.jpg]

And resolder all those wires.

[Image: https://farm5.staticflickr.com/4845/3969...6a40_z.jpg]

Step 7 - Power Up

Reconnect the speaker, power it up....and....it works!  oh_yeah

The bandswitch works much better.



The set is fully recapped now and is pulling in lots of stations but definitely will benefit from being realigned.

I probably should rebuild the linkage between the tuning condenser and the dial - it's quite stiff and unsymmetrical.

[Image: https://farm5.staticflickr.com/4917/3171...13f9_z.jpg]

There's also the mangled tube shield bases. Also need to clean and reinstall the dial.

And soak some parts in Evaporust.

[Image: https://farm8.staticflickr.com/7837/3278...4a1c_z.jpg]


Messages In This Thread
RE: Nathan's 38-116XX Restoration - by klondike98 - 01-04-2019, 12:04 AM
RE: Nathan's 38-116XX Restoration - by rfeenstra - 01-04-2019, 12:12 AM
RE: Nathan's 38-116XX Restoration - by sam - 01-05-2019, 09:15 PM
RE: Nathan's 38-116XX Restoration - by klondike98 - 01-05-2019, 11:29 PM
RE: Nathan's 38-116XX Restoration - by 462ron - 01-07-2019, 09:06 AM
RE: Nathan's 38-116XX Restoration - by Jeremy S - 01-07-2019, 04:46 PM
RE: Nathan's 38-116XX Restoration - by rfeenstra - 01-08-2019, 12:04 AM
RE: Nathan's 38-116XX Restoration - by Nathan Slingerland - 01-08-2019, 01:48 AM
RE: Nathan's 38-116XX Restoration - by rfeenstra - 01-10-2019, 12:42 AM
RE: Nathan's 38-116XX Restoration - by amptramp - 01-10-2019, 10:21 PM
RE: Nathan's 38-116XX Restoration - by sam - 01-11-2019, 12:23 PM
RE: Nathan's 38-116XX Restoration - by tbone - 01-12-2019, 07:48 AM
RE: Nathan's 38-116XX Restoration - by klondike98 - 01-18-2019, 10:19 AM
RE: Nathan's 38-116XX Restoration - by EdHolland - 01-18-2019, 02:41 PM
RE: Nathan's 38-116XX Restoration - by rfeenstra - 01-19-2019, 01:46 PM
RE: Nathan's 38-116XX Restoration - by rfeenstra - 02-17-2019, 04:25 PM
RE: Nathan's 38-116XX Restoration - by rfeenstra - 02-17-2019, 05:15 PM
RE: Nathan's 38-116XX Restoration - by klondike98 - 02-17-2019, 05:33 PM
RE: Nathan's 38-116XX Restoration - by morzh - 02-17-2019, 05:38 PM



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