The Philco 39-30 looks similar to the 40-150 table top. The complete schematic
is found here
at Nostalgia Air. This is snippet from the web site:
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Lets see:
Six tubes, Push button broadcast band tuning, and a broad short wave
band.
Nice veneer pattern. Replication speaker grill, knobs and push
buttons readily available.
I am looking forward to restoring this unit in the spring.
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This 39-30 (pre August 1939) looks similar to the 40-150
with an art decoish grill. |
Not too bad on this side. |
Ouch. A bit of moisture damage. The side piece of veneer
will be replace and color matched. The frame glued and
clamped. |
A
wire brush on the drill and a Dremel tool will make short work of the
rust. Add a nice coat of clear lacquer spray to protect the shine. |
The under chassis will be inspected and evaluated soon. |
A new set of knobs, buttons, new grill cloth and dial plastic will make
this a thing of beauty. |
I should have mentioned this sooner. If you contact Larry at
(click pic for www.antiqueradioknobs.com/partlistings.html)
you can order a set of new, long buttons for this radio. Click on the
picture for his web site. I have a set and they look great!
These push buttons are not like the 40-xxx series of chassis.
They are longer and the switch shafts are shorter. These buttons slip over
the push button rectangular rods but are too recessed to be used. I wonder
if the push button switches have been changed out or there was some additional
hardware to make up the distance between the push buttons and the switch rods. A
note on the news group and radio forums should yield some
information.
The chassis...
.... has potential. I have restored worse. All the chokes, coils
and transformers ohm out good. The power transformer produces the expected
voltages when 10 volts AC is applied to the primary. The speaker voice
coil is good but the field coil reads in the meg ohms. It is burned
open. The rectifier tube 84 has a burned socket between the two high
voltage AC pins. That socket will need replaced. And all the wire
has brittle insulation and will need replaced or covered with spaghetti (power
transformer) or heat shrink.
What is this bit of fiber glass insulation doing here? |
Burned socket. Indicative of long term arching. Not a
problem. I have replacement sockets. All the wires on this
socket need replacing anyhow. |
Rather clean underside. Some one has bridged new capacitors across
the dried out can caps. A common practice. But not in my
shop! |
A power wire brush will make short work of this rust. |
Evidence
of squatters. |
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This is a 39-25 cabinet. Similar styling but a different speaker
grill. This cabinet structurally strong and is in better shape regarding
the veneer. It will receive a total stripping, chip repairs and
re-finishing. As always, I would prefer to keep the original finish but
this one has many chipped off sections of lacquer.
I will look forward to fixing this cabinet.
This radio is going to take some TLC. But this is the type of challenge
that keeps coming back to this hobby. More on this radio later this
year.
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