Hi,
I have a Philco Model 531. To the left side of the dial, it appears that there was a fuse holder (I am not 100% sure) installed. Mine is missing the cap and fuse. My questions are:
1. Was this a fuseholder?
2. What value would the fuse be(volts/amps)?
Any help is appreciated. I am having trouble locating info for this radio.

Thanks. Jim

Hi, Jim - I couldn't find a schematic for this set. Can you link us to one?

According to my guide, this is a 7-tube, AC set, c. 1928. Most sets of this vintage were unfused, but I can't say for sure about this one. Look and see how the fuseholder, or whatever it is, is wired into the set. If it's a fuseholder, I would expect it to be wired in series with the AC line.

Hi Jim

I agree with Doug. The radio isn't listed on nostalgiaair but Official Radio Service Manual mentions it's the same as 511, 512, 513, 514, 515, 551 and 571. A schematic can be found here:

http://www.nostalgiaair.org/PagesByModel/735/M0013735.pdf

No fuse is shown but there is a small cap from AC line to antenna terminal. This can act like an antenna.

Some old radios had grid leak resistors. Often resistors were mounted between two metal clips and look like a fuse. Resistor values were usually 2 - 5 meg.

Norm

:Hi, Jim - I couldn't find a schematic for this set. Can you link us to one?
:
:According to my guide, this is a 7-tube, AC set, c. 1928. Most sets of this vintage were unfused, but I can't say for sure about this one. Look and see how the fuseholder, or whatever it is, is wired into the set. If it's a fuseholder, I would expect it to be wired in series with the AC line.

Thanks guys. From the schematic, it appears that what I thought was a fuseholder is really a phonograph pickup jack. I'll study the schematic and I am sure I'll come up with some more questions. Thanks again.

Jim

:Hi Jim
:
: I agree with Doug. The radio isn't listed on nostalgiaair but Official Radio Service Manual mentions it's the same as 511, 512, 513, 514, 515, 551 and 571. A schematic can be found here:
:
:http://www.nostalgiaair.org/PagesByModel/735/M0013735.pdf
:
: No fuse is shown but there is a small cap from AC line to antenna terminal. This can act like an antenna.
:
: Some old radios had grid leak resistors. Often resistors were mounted between two metal clips and look like a fuse. Resistor values were usually 2 - 5 meg.
:
:Norm
:
::Hi, Jim - I couldn't find a schematic for this set. Can you link us to one?
::
::According to my guide, this is a 7-tube, AC set, c. 1928. Most sets of this vintage were unfused, but I can't say for sure about this one. Look and see how the fuseholder, or whatever it is, is wired into the set. If it's a fuseholder, I would expect it to be wired in series with the AC line.

Jim, I suspect you may be looking a component #24 shown on the Model 511 schematic referenced by Norm. That is indeed a phono jack. If you study the schematic carefully, you'll notice that when a phono plug is inserted into the jack, the detector output is disconnected from the signal path - and the phone input goes into the audio stages.

I believe it is unusual to have a phone jack on a 1928-vintage set. I learn something everyday.