Brand: General Electric Co.Year of Manufacture: 1941Frequency Range: 550 - 1600 Kc Tube Lineup: 35Z5 GTRectifier, 35L6 GTOutput, 12SQ7Det/ A.F., 12SK7I.F. Amp, 12AS7Osc/Conv., 12SK7R.F. Amp Schematic:
Available here, courtesy of Nostalgia Air. Riders 13-57
This
one was spotted on ebay in June of 2005. It
looked complete, with minor damage, and the chrome escutcheon looked
rather cool. I won the radio for less than $20.00, being the only
bidder. Later on a few examples of this same model sold in excess of
$100, one very shiny example went for over $500.00!
The seller followed my packing directions, and the
radio arrived double boxed, with plenty of foam packing. Upon
initial inspection, the radio was starting to look sort of bad. Just
about all of the glue that holds the veneer on had dried out, and the
veneer was simply falling off the cabinet. Luckily most of it was
there, other than a few small chips. Other than the veneer, the chassis
looked to be untouched, and the original finish was intact with some
minor flaking.
Electronic Restoration
As before
mentioned, the chassis looked to be untouched, and very dusty. The
usual replacement of the paper and electrolytic
capacitors was the main repair. Extra time was taken to restuff the
replacement capacitors
into the shells of the originals.
After replacing the capacitors, and the original
power cord, it was time to power up the radio. Since this is a
transformerless AC/DC type radio, the chassis is used as a common
connection in the circuit. This means with a non-polarized power cord,
depending on which way you plug in the cord, the chassis can be hot
with 120 VOLTS AC! To protect myself, and my test equipment, an
Isolation transformer, with a metered variac, was used to power up the
radio.
The initial power up was semi successful. Several
stations could be
received, but the sound was crackling and popping very
bad. A little contact cleaner on the controls and switches fixed this.
The last obstacle was a broken dial cord, and missing dial pointer. A
spool of dial cord was purchased from RadioDaze. The pointer was found
through a want add posted on several newsgroups/forums ( Thanks
Marty!). My schematic for this radio had a diagram of the dial
cord, so this was easy to reinstall. After an alignment, the radio was
sounding good.
Cosmetic
Restoration
Cosmetic
wise,
this radio didn't look very bad when first purchased. The cabinet
suffered from many pieces of loose veneer. This was all reglued using
wood glue, and several clamps. There were a few small chips in the
veneer, which were filled in with wood filler. After the filler
dried, it was sanded down to match the existing veneer, and a black ink
pen with a sharp tip was used to carve in the wood grain. A few coats
of Mohawk
brand Toner had this blended in rather well.
The original finish didn't look too bad, other than
the usual chips and scratches after more than 60 years in existence.
The cabinet was thoroughly cleaned with some rags and mineral spirits
to
remove any grease and grime. Several coats of Deft
brand Satin clear lacquer were then sprayed on to seal in the original
finish.
One other flaw in the radio was a small section of
nasty looking rust on the chassis. A jellied rust remover
purchased from Wal Mart was used for this. This product loosened up the
rust, which was
cleaned off with a brass wire brush.
Final Thoughts
This
was a simple restoration, as compared to some of my other projects. The
total cost is estimated at under $60.00. The total time spent on the
project was probably two months sitting on the bench, and maybe 10
hours of work. As seen in the above "After" photo, the labels on the
pushbuttons are still incomplete. I may try to reproduce them some day,
for for now I deem this project complete!