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Philco 38-7
#7

OK, so I finished re-capping, replaced out of tolerance resistors, and checked most of the crucial transformers and coils, and did a power-up. No sparks or explosions  Icon_thumbup .

BUT, it is completely deaf. No static, no reception.

I flipped the chassis over, and started taking voltage readings. Here is what came up:

6K7G:
H: 6.5v
P: 251v/240v
S: 90v/100v

6J5G:
No voltages indicated other than the heater voltage, which checked out at 6.5v

6K5G:
P: 187v/170v
H:6.7v

Here's where I suspect there's an issue. If anyone can give me a clue of where to start looking, I'd appreciate the help.  Icon_thumbup

6A8G:
H: 6.6v
OscP: 113v/180v
P: 141v/180v
S: 78v/100v

I thought the audio cut-off switch on the dial might be corroded, so it was cleaned, and SEEMS to be working, but this type of dial/switch mechanism is new to me. If there's anything I need to clean or check, again, I'd appreciate any tips.  Icon_thumbup

Note: I am getting audio. There is a very low hum coming from the speaker, and touching the grid cap of the 6K5G (1st audio) tube does produce a loud buzz.

Here's a couple pages of paperwork for easy reference:

[Image: https://farm2.staticflickr.com/1835/3015...d8e7_z.jpg]

[Image: https://farm1.staticflickr.com/939/44020...4e60_z.jpg]

Blessings,
Jeff W.
Jonesboro, Arkansas

http://jeffsradios.weebly.com

God loves you as you are, not as you should be, because none of us are as we should be. - Brennan Manning


Messages In This Thread
Philco 38-7 - by PhilcoPhan1936 - 08-09-2018, 02:50 PM
RE: Philco 38-7 - by Olskuul - 08-09-2018, 05:10 PM
RE: Philco 38-7 - by Radioroslyn - 08-09-2018, 06:08 PM
RE: Philco 38-7 - by PhilcoPhan1936 - 08-09-2018, 09:47 PM
RE: Philco 38-7 - by PhilcoPhan1936 - 08-10-2018, 05:40 PM
RE: Philco 38-7 - by PhilcoPhan1936 - 08-10-2018, 06:09 PM
RE: Philco 38-7 - by PhilcoPhan1936 - 08-13-2018, 05:03 PM
RE: Philco 38-7 - by Radioroslyn - 08-13-2018, 05:30 PM
RE: Philco 38-7 - by PhilcoPhan1936 - 08-13-2018, 05:48 PM
RE: Philco 38-7 - by PhilcoPhan1936 - 08-13-2018, 06:11 PM
RE: Philco 38-7 - by Radioroslyn - 08-13-2018, 06:55 PM
RE: Philco 38-7 - by PhilcoPhan1936 - 08-13-2018, 07:23 PM
RE: Philco 38-7 - by Radioroslyn - 08-13-2018, 09:22 PM
RE: Philco 38-7 - by Arran - 08-13-2018, 09:38 PM
RE: Philco 38-7 - by PhilcoPhan1936 - 08-14-2018, 04:17 AM
RE: Philco 38-7 - by Ron Ramirez - 08-14-2018, 06:25 AM
RE: Philco 38-7 - by Radioroslyn - 08-14-2018, 08:28 AM
RE: Philco 38-7 - by cpollock - 08-14-2018, 12:30 PM
RE: Philco 38-7 - by Radioroslyn - 08-14-2018, 01:01 PM
RE: Philco 38-7 - by PhilcoPhan1936 - 08-14-2018, 04:35 PM
RE: Philco 38-7 - by PhilcoPhan1936 - 08-14-2018, 05:40 PM
RE: Philco 38-7 - by PhilcoPhan1936 - 08-14-2018, 10:49 PM
RE: Philco 38-7 - by PhilcoPhan1936 - 08-27-2018, 03:34 AM
RE: Philco 38-7 - by PhilcoPhan1936 - 08-27-2018, 07:54 PM



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