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

Ron's RCA T7-5 Electronic Rescue
#11

...and so it begins.

[Image: http://www.philcoradio.com/images/phorum...-5_009.jpg]

Replacing rubber-covered wire is fun...not. I only worked on this for a couple of hours tonight and you can see what I have accomplished so far.

When it comes to sets like this with rubber-covered wiring, I simply pick a place to jump in, so to speak, and go from there. I'm working around the 1st audio tube (6F5).

A closer look:

[Image: http://www.philcoradio.com/images/phorum...-5_010.jpg]

I can hear some of you now...Oooohhh, eh eh, you didn't restuuuffff the old caaaaaappsss!!! Well, no, I didn't. There is a very simple reason why...the old paper cap tubes are unraveling and falling apart! So, yes...I'm taking the easy way out.

The RCA solder terminals are quite unusual compared to Philco. Each terminal...including the terminals on the tube sockets...is a set of three "fingers" if you will, through which the wires and lead ends are threaded. Then these "fingers" were squeezed together and the whole thing covered in solder. Even though it's been something like 42-43 years, I remember these same type of terminals on that 5T1 I had so many years ago. And, like the 5T1, I found that these can be fragile; one of the three "fingers" has already broken on one solder terminal so I am trying to be as careful as I can.

Oh, and this radio had extra electrolytics added under the chassis. That "repairman" did not bother to disconnect the originals, merely adding the then-new ones in parallel with the originals. I have now removed all of the extra added electrolytics, leaving the aluminum can electrolytics in place. I will deal with those later on in this restoration.

--
Ron Ramirez
Ferdinand IN


Messages In This Thread
Ron's RCA T7-5 Electronic Rescue - by Ron Ramirez - 06-03-2018, 01:38 PM
RE: Ron's RCA T7-5 Electronic Rescue - by Arran - 06-05-2018, 04:20 AM
RE: Ron's RCA T7-5 Electronic Rescue - by Ron Ramirez - 06-08-2018, 09:45 PM
RE: Ron's RCA T7-5 Electronic Rescue - by Arran - 06-09-2018, 11:06 PM
RE: Ron's RCA T7-5 Electronic Rescue - by Arran - 06-14-2018, 02:23 AM
RE: Ron's RCA T7-5 Electronic Rescue - by Arran - 06-15-2018, 01:14 AM
RE: Ron's RCA T7-5 Electronic Rescue - by Arran - 06-17-2018, 01:50 AM
RE: Ron's RCA T7-5 Electronic Rescue - by KCMike - 06-17-2018, 06:09 PM
RE: Ron's RCA T7-5 Electronic Rescue - by Arran - 06-18-2018, 02:41 AM
RE: Ron's RCA T7-5 Electronic Rescue - by Arran - 06-21-2018, 04:08 AM
RE: Ron's RCA T7-5 Electronic Rescue - by Arran - 06-22-2018, 03:27 AM
RE: Ron's RCA T7-5 Electronic Rescue - by Arran - 06-24-2018, 02:42 AM
RE: Ron's RCA T7-5 Electronic Rescue - by Arran - 07-04-2018, 03:17 AM
RE: Ron's RCA T7-5 Electronic Rescue - by Arran - 07-05-2018, 11:21 PM
RE: Ron's RCA T7-5 Electronic Rescue - by Arran - 07-11-2018, 05:16 PM
RE: Ron's RCA T7-5 Electronic Rescue - by Arran - 07-13-2018, 09:57 PM



Users browsing this thread: 2 Guest(s)
[-]
Recent Posts
Cannot Adjust an IF Transformer’s cores
Outstanding work indeed. I wish I could come up with solutions like this.slford310 — 11:16 PM
Cannot Adjust an IF Transformer’s cores
The abilities of our 'Phorum Pholks" never ceases to amaze me! Fantastic fabrication, Joseph! I'm waiting now for...GarySP — 08:27 PM
PT-6 antenna connections
Thanks. I never realized that was a notch noted in the schematic as described. I’ll recheck my wiring.bridkarl — 08:13 PM
Cannot Adjust an IF Transformer’s cores
Thank you! I was quite new to the Phorum when I started this post, so I feel like it might be advantageous to publish a ...jrblasde — 08:07 PM
PT-6 antenna connections
Notice in the schematic the notch at the bottom of the antenna coil is between pins 3 & 4. Yes, pin 6 of the 7C6 is...RodB — 07:34 PM
bridkarl
I have two PT-6 chassis. On both there is a blue wire that runs from the above chassis transformer to pin 6 of 7C6. So t...bridkarl — 07:23 PM
Cannot Adjust an IF Transformer’s cores
Joseph, now you are an engineer!!RodB — 06:37 PM
PT-6 antenna connections
Hi, reading your explanation I can see the confusion. If you take it one connection at a time it should result in a desi...RodB — 06:34 PM
Cannot Adjust an IF Transformer’s cores
It works! I received the PCBs this morning in the mail, and put everything together. I reused the base from the original...jrblasde — 04:32 PM
PT-6 antenna connections
I seem to have lost my way on this PT-6. I see the antenna aerial transformer schematic - I’m reading pins 1 through ...bridkarl — 12:30 PM

[-]
Who's Online
There are currently no members online.

>