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Ron's RCA T7-5 Electronic Rescue
#50

Okay!

Tonight, I finished up the third electrolytic can and installed it.

I also finished connecting the speaker wires, the B- leads, and the 6K7 RF tube grid cap lead.

In addition, I went ahead and installed the 15K resistor in place of the original 13K (R20).

And, of course, a new AC cord and a 1930s AC plug were installed.

I tested all seven tubes. Of the seven, four required replacement. It had a 6V6GT in the audio output socket and it failed its test anyhow; it was replaced by a metal 6F6. The 6K7GT IF tube was weak as was the 6F5; the 6H6 had one dead section. All were replaced with metal save for the 6H6 which was replaced by a 6H6GT as I did not have a metal 6H6 in stock. But that's okay...I intend to open up that little top hat 6H6, gut it, and install two 1N34A diodes inside. I will then put it back into the radio.

Two of its original Cunningham-Radiotron metal tubes tested good and remain in the set: the 6K7 RF amp and the 6A8 mixer-oscillator.

Here's how things looked by the time I had installed everything:

[Image: http://www.philcoradio.com/images/phorum...-5_059.jpg]

[Image: http://www.philcoradio.com/images/phorum...-5_060.jpg]

Edit: Photos replaced with better photos.

Ready to try out...

--
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 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 Ron Ramirez - 06-22-2018, 09:45 PM
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



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