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Philco Tropic 39-770EZ
#45

I worked on the 39-770 literally all day today. It doesn't look like I did much, but I made some major strides towards completion of this project.

I mentioned in post #41 above what I did last night to this chassis. I began this morning by replacing the remaining resistors on that long terminal strip on the right side of the chassis, near the set's power transformer. I also had to remove the reactor/transformer in the tuning lamp circuit and attach new wires to it.

I ran new wires to where they will attach to the input electrolytic capacitor once I have restuffed and reinstalled it.

And, yes, the bakelite block was restuffed with new X/Y safety caps.

Here is how the right side of the chassis looked when I had done all of that:

[Image: http://www.philcoradio.com/images/phorum...770-32.jpg]

I then moved to the top of the chassis and replaced the wires running to the power switch, rebuilt the right side dial lamp, and attached a new wire to the tuning lamp. Later on, I flipped the chassis back over and attached the power switch leads, dial lamp lead and tuning lamp lead.

I also made a new speaker wiring harness and attached those wires inside the chassis.

While I was working above the chassis, I replaced the grid leads at the tuning condenser, and also replaced the two 250 pF mica caps and 1 meg resistors connected at the tuning condenser.

[Image: http://www.philcoradio.com/images/phorum...770-33.jpg]

Once all of that was done, I decided to attach a power cord, install new dial lamps, and turn it on with no tubes installed, just to see the dial illuminated.

Here it is:

[Image: http://www.philcoradio.com/images/phorum...770-34.jpg]

[Image: http://www.philcoradio.com/images/phorum...770-35.jpg]

After that, I removed the dial scale, wrapped it in a towel and put it in a safe place. Now that I'm nearing the home stretch, I don't want anything to happen to it! Icon_eek

The next job is to rewire and clean up the two IF transformers. Next will be final wiring at the RF and det-osc tubes, then install any remaining capacitors, and finally restuff and install the electrolytics.

Barring any coil issues, this set should be singing again sometime this coming week.

--
Ron Ramirez
Ferdinand IN


Messages In This Thread
Philco Tropic 39-770EZ - by Ron Ramirez - 01-30-2015, 08:40 PM
RE: Philco Tropic 39-770EZ - by Ron Ramirez - 01-30-2015, 08:51 PM
RE: Philco Tropic 39-770EZ - by Arran - 01-31-2015, 12:38 AM
RE: Philco Tropic 39-770EZ - by Joe Rossi - 01-31-2015, 09:32 AM
RE: Philco Tropic 39-770EZ - by klondike98 - 01-31-2015, 09:54 AM
RE: Philco Tropic 39-770EZ - by Ron Ramirez - 01-31-2015, 09:59 AM
RE: Philco Tropic 39-770EZ - by Joe Rossi - 01-31-2015, 01:33 PM
RE: Philco Tropic 39-770EZ - by Ron Ramirez - 01-31-2015, 01:35 PM
RE: Philco Tropic 39-770EZ - by Joe Rossi - 01-31-2015, 09:47 PM
RE: Philco Tropic 39-770EZ - by Ron Ramirez - 01-31-2015, 11:25 PM
RE: Philco Tropic 39-770EZ - by Ron Ramirez - 02-01-2015, 04:14 PM
RE: Philco Tropic 39-770EZ - by codefox1 - 02-02-2015, 12:32 PM
RE: Philco Tropic 39-770EZ - by Ron Ramirez - 02-02-2015, 02:03 PM
RE: Philco Tropic 39-770EZ - by Ron Ramirez - 02-02-2015, 07:57 PM
RE: Philco Tropic 39-770EZ - by Arran - 02-03-2015, 01:59 AM
RE: Philco Tropic 39-770EZ - by Ron Ramirez - 02-02-2015, 08:10 PM
RE: Philco Tropic 39-770EZ - by Ron Ramirez - 02-02-2015, 09:45 PM
RE: Philco Tropic 39-770EZ - by Ron Ramirez - 02-03-2015, 01:16 PM
RE: Philco Tropic 39-770EZ - by Arran - 02-05-2015, 01:43 AM
RE: Philco Tropic 39-770EZ - by sam - 02-03-2015, 01:39 PM
RE: Philco Tropic 39-770EZ - by Ron Ramirez - 02-03-2015, 02:07 PM
RE: Philco Tropic 39-770EZ - by Ron Ramirez - 02-03-2015, 05:11 PM
RE: Philco Tropic 39-770EZ - by Ron Ramirez - 02-03-2015, 05:17 PM
RE: Philco Tropic 39-770EZ - by KCMike - 02-03-2015, 09:08 PM
RE: Philco Tropic 39-770EZ - by Ron Ramirez - 02-04-2015, 03:59 PM
RE: Philco Tropic 39-770EZ - by Chuck Schwark - 02-04-2015, 04:01 PM
RE: Philco Tropic 39-770EZ - by Ron Ramirez - 02-04-2015, 04:03 PM
RE: Philco Tropic 39-770EZ - by Ron Ramirez - 02-04-2015, 05:51 PM
RE: Philco Tropic 39-770EZ - by Ron Ramirez - 02-05-2015, 07:55 AM
RE: Philco Tropic 39-770EZ - by Arran - 02-07-2015, 01:22 AM
RE: Philco Tropic 39-770EZ - by Ron Ramirez - 02-05-2015, 02:58 PM
RE: Philco Tropic 39-770EZ - by klondike98 - 02-05-2015, 03:14 PM
RE: Philco Tropic 39-770EZ - by Ron Ramirez - 02-05-2015, 06:11 PM
RE: Philco Tropic 39-770EZ - by sam - 02-05-2015, 09:04 PM
RE: Philco Tropic 39-770EZ - by Eliot Ness - 02-05-2015, 10:41 PM
RE: Philco Tropic 39-770EZ - by sam - 02-06-2015, 04:01 AM
RE: Philco Tropic 39-770EZ - by sam - 02-06-2015, 04:14 AM
RE: Philco Tropic 39-770EZ - by Ron Ramirez - 02-06-2015, 08:04 AM
RE: Philco Tropic 39-770EZ - by Ron Ramirez - 02-06-2015, 05:33 PM
RE: Philco Tropic 39-770EZ - by KCMike - 02-06-2015, 10:16 PM
RE: Philco Tropic 39-770EZ - by Ron Ramirez - 02-06-2015, 10:36 PM
RE: Philco Tropic 39-770EZ - by KCMike - 02-06-2015, 11:12 PM
RE: Philco Tropic 39-770EZ - by Ron Ramirez - 02-07-2015, 08:55 AM
RE: Philco Tropic 39-770EZ - by Ron Ramirez - 02-07-2015, 10:26 PM
RE: Philco Tropic 39-770EZ - by sam - 02-07-2015, 10:50 PM
RE: Philco Tropic 39-770EZ - by Chuck Schwark - 02-08-2015, 12:04 AM
RE: Philco Tropic 39-770EZ - by Ron Ramirez - 02-08-2015, 12:44 AM
RE: Philco Tropic 39-770EZ - by Ron Ramirez - 02-08-2015, 07:13 PM
RE: Philco Tropic 39-770EZ - by KCMike - 02-08-2015, 07:54 PM
RE: Philco Tropic 39-770EZ - by klondike98 - 02-08-2015, 08:36 PM
RE: Philco Tropic 39-770EZ - by Chuck Schwark - 02-09-2015, 10:35 AM
RE: Philco Tropic 39-770EZ - by morzh - 02-09-2015, 12:11 PM
RE: Philco Tropic 39-770EZ - by Ron Ramirez - 02-09-2015, 12:54 PM
RE: Philco Tropic 39-770EZ - by morzh - 02-09-2015, 01:00 PM
RE: Philco Tropic 39-770EZ - by Ron Ramirez - 02-09-2015, 06:41 PM
RE: Philco Tropic 39-770EZ - by Ron Ramirez - 02-09-2015, 06:48 PM
RE: Philco Tropic 39-770EZ - by morzh - 02-09-2015, 07:30 PM
RE: Philco Tropic 39-770EZ - by Ron Ramirez - 02-09-2015, 07:34 PM
RE: Philco Tropic 39-770EZ - by KCMike - 02-09-2015, 07:36 PM
RE: Philco Tropic 39-770EZ - by morzh - 02-09-2015, 07:38 PM
RE: Philco Tropic 39-770EZ - by Ron Ramirez - 02-09-2015, 07:39 PM
RE: Philco Tropic 39-770EZ - by Ron Ramirez - 02-09-2015, 07:41 PM
RE: Philco Tropic 39-770EZ - by morzh - 02-09-2015, 07:46 PM
RE: Philco Tropic 39-770EZ - by Ron Ramirez - 02-09-2015, 07:49 PM
RE: Philco Tropic 39-770EZ - by OZ4 - 02-09-2015, 10:47 PM
RE: Philco Tropic 39-770EZ - by Ron Ramirez - 02-09-2015, 10:57 PM
RE: Philco Tropic 39-770EZ - by Chuck Schwark - 02-10-2015, 10:39 AM
RE: Philco Tropic 39-770EZ - by Ron Ramirez - 02-10-2015, 06:46 PM
RE: Philco Tropic 39-770EZ - by Ron Ramirez - 02-10-2015, 06:50 PM
RE: Philco Tropic 39-770EZ - by Ron Ramirez - 02-10-2015, 06:57 PM
RE: Philco Tropic 39-770EZ - by sam - 02-10-2015, 08:04 PM
RE: Philco Tropic 39-770EZ - by OZ4 - 02-10-2015, 08:33 PM
RE: Philco Tropic 39-770EZ - by Ron Ramirez - 02-10-2015, 09:26 PM
RE: Philco Tropic 39-770EZ - by Ron Ramirez - 02-11-2015, 05:22 PM
RE: Philco Tropic 39-770EZ - by Ron Ramirez - 02-11-2015, 05:35 PM
RE: Philco Tropic 39-770EZ - by Ron Ramirez - 02-11-2015, 06:51 PM
RE: Philco Tropic 39-770EZ - by Ron Ramirez - 02-11-2015, 10:42 PM



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