I have been lucky enough to have found 3 116x console radios. Not all were complete, but i have enough to make two complete consoles. I then had an extra chassis so i purchased a 116 shouldered cabinet. My questions are what is the speaker part number that correspondes with a 116 code 122 chassis, that will work in this cabinet? Also is there another radio Philco produced that used a speaker that is compatable with this chassis and what is/are the model numbers? Any insight or thoughts are greatly appreciated. Thanks Radoez
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This is a 116X not a 37-116 or 38-116 correct? If so see below.
Do the two cabinets accept the same size speaker? If so PN 36-3088 is the field coil with speaker. The output transformer was mounted to the speaker so you do not have a output transformer PN is 32-7446. As far as other Philco's that use the same speaker I did a little checking and found zip. There may be other models that use the same parts but without a cross reference it would take more time than I have at this point. Maybe Ron will know. You could always use a PM speaker and a 1000 ohm, 25 watt (minimum) resistor (fixed per Ron's advice) as a fake field coil but you still need a output transformer as it was attached to the speaker you do not have.
If you want to research your self get copies of most Philco models service info here.
http://www.theoldradiofixerupperguy.com/...nloads.htm
If they do not have the model you are looking for try here.
http://www.nostalgiaair.org/Resources/
Hope you get it figured out!
Edited to correct info
Bill
It's not what you don't know that hurts you it's what you know that's not so.
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Radoez - I once had a 116X chassis, and later acquired an early 116B shouldered tombstone cabinet. Here's what I did: I used an H-13 speaker, the same type used in the 116B, which has an 1125 ohm field coil.
The 116X originally used a U-9 speaker, which has a 1450 ohm field. The U-9 is very heavy, and the field coil is huge. It would be too heavy to attempt mounting in a tombstone cabinet.
My 116X chassis worked just fine with the H-13 speaker.
Other Type H speakers, such as H-9, H-14 & H-15 will also work, but you will have to change the single ended audio output transformer to a push-pull output.
Some Philco sets that use the Type H-13 speaker include: 16B tombstone, 18D, 18H, 18L, 18X, 118D, 118H, 118X, 118MX, 650L, 650X, 660L, 660X, 665L, 665X.
As Wonderwrench suggests, you might also use a PM speaker; but you will need a 1000 ohm, 25 watt (minimum) resistor to serve as a replacement for the field coil.
A final note...A 116B that has a 116X chassis will be an absolutely outstanding performer. But note that you will probably have to remove the hum control potentiometer and substitute fixed resistors under the chassis in its place, due to space considerations. Also, the 6A3 output tubes will be very close to the cabinet, so be aware this area of the cabinet will get very warm!
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Ron Ramirez
Ferdinand IN
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Hey Ron how do you figure the resister size I'm curious? The field coil resistance is 310 ohms per the diagram?
Thanks
Bill
It's not what you don't know that hurts you it's what you know that's not so.
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Bill - you must be looking at a 37-116 or 38-116 schematic. What Radoez has are Model 116X chassis (1936) , which are totally different animals.
116B - 1125 ohm field
116X - 1450 ohm field
37-116 - 360 ohm field
38-116 Codes 121 & 125 - 350 ohm field
These values are taken from the various Philco Service Bulletins for each Model. Don't know where you're getting the 310 ohm figure, but that is close to 37-116 and 38-116 territory...
Please see these schematics:
http://www.theoldradiofixerupperguy.com/...del116.pdf
http://www.nostalgiaair.org/PagesByModel...013122.pdf
http://www.nostalgiaair.org/PagesByModel...013123.pdf
http://www.philcoradio.com/tech/images/116px.jpg
Note that the second to last link above (116X, Nostalgia Air) erroneously
gives the field as 1125 ohms. This was an error done by Philco's draftsmen; the U-9 speaker used in the 116X has a 1450 ohm field.
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Ron Ramirez
Ferdinand IN
Posts: 96
Threads: 16
Joined: Oct 2007
I should change my name to screw ball. I was looking at the output transformer resistance.
Thanks Ron
Bill
It's not what you don't know that hurts you it's what you know that's not so.
Hi Bill the chassis is a 116x. I also have the 37/38-116's along with a 680. Ron, thanks for your help. You are absolutely right about the weight of the u-9 speaker, it is a beast. I would not even think about mounting it to the shouldered cabinet. Thanks again for all of your input and research. Radoez
