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

Philco 71 abnormal filament voltages-low volume
#5

Thank you gentlemen for your input. I will investigate further based on your comments. 

Chas, you are right, I do have a rusty chassis I will plan to solder those grommet connections after rust cleanup to clean metal

Steve, I have included a photo of the antenna coil, and I believe you are correct about an open winding. It looks as though a wire has broken loose. It also looks like a bit of solder on the end of one wire. Maybe this was an attempt to repair it earlier.
       
Rod, I have attached a schematic with the PN 59 circled in light blue. I replaced the dogbone with a smaller resistor as it was testing about 10,500 ohms.


Messages In This Thread
RE: Philco 71 abnormal filament voltages-low volume - by dmblackburn - 08-05-2024, 08:58 AM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Philco 60 Squealing
I have recapped and replaced out of tolerance resistors and so on. Radio plays nicely on fairly strong stations. The pro...dconant — 10:55 AM
Philco 46-420 Code 121 Reception issues
Welcome Eric, I agree with Bob and far as the two main electrolytic filter capacitors did you change them yourself or w...radiorich — 11:43 PM
Philco 46-420 Code 121 Reception issues
You mentioned the Philco manual and going through the check points...just to be sure we're on the same page here's the m...klondike98 — 08:13 PM
Philco 42-1008 conversion kit
Interesting. I haven't seen that before.klondike98 — 07:02 PM
12' Philco
Yes I had looked for it on the web as well some time back and could not find it. I was glad to see it turned up in Ron'...klondike98 — 06:59 PM
Shadow Meter Bulb
Now if you had a set with a tuning light then the bulb type is important to the circuit, some sets used those prior to t...Arran — 04:58 PM
Shadow Meter Bulb
Ok. Thanks for the correction.RossH — 03:09 PM
Model 28L
For 28 you will probably need to buy a Hammond 125CSE. Or any of the series of the power you need, with SE suffix. Then ...morzh — 02:09 PM
37-60 revision 6
I am restoring a Philco 37-60 and it shows run 6 they removed the ground from G3 of the 6K7G and put the G3 to -2.5v for...bobbyd1200 — 01:01 PM
Shadow Meter Bulb
Mike is correct on the bulb connection, two separate circuits. I found that by rotating the bulb and sliding it forward ...RodB — 12:19 PM

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

>