two advertisements appeared in the July 1935 edition of QST. Bliley
Electric is still in business here in Erie, Pennsylvania as
They make crystals and frequency sources. Gross Radio has been out of
business for quite a while. I included it mainly to illustrated how
large radio transmitters used to be - these things were installed in
people's attics and basements back in the day. This particular model,
the CB-100, is a "100-Watt Radiophone & C.W. Transmitter completely
housed in an entirely enclosed floor rack of ingenious design." It operated
in the 1.7, 3.5, 7 and 14 MHz bands. For comparison, iCOM makes a
1 kW power amplifier today covering those bands that measures
roughly 6"(H) × 3"(W) × 9"(D) and weighs 55 lbs.
Table of Contents
Wax nostalgic about and learn from the history of early electronics. See articles
QST, published December 1915 - present. All copyrights hereby acknowledged.
WWII era electronics company ads in QST.
Bliley Electric Advertisements
July 1935 QST
July 1935 QST
|Bring Your Frequency Drift Down to U.S.
Government Specifications with the new BLILEY LD-2 CRYSTAL UNIT
All latest government specifications for crystals call for
low temperature coefficient plates.
Now, with the new
Bliley LD·2 Crystal Unit you can get for the first time a frequency
control unit that is guaranteed to drift less than 8 cycles/megacycle
that sells for only $4.80.
See the new Bliley
LD·2 Crystal Unit at your nearest dealer at once. Look for the
improved permanently sealed holder.
1. Choice of 40. 80 and
160 meter bands.
2. Greatly improved sealed
3. Greater activity.
Guaranteed 0.03% accurate In your transmitter
Supplied within 0.1% of your desired frequency, or choice
from dealers' stock.
6. Costs only $4.80 al your dealer
|A 100-Watt Radiophone and C.W. Transmitter
completely housed in an entirely enclosed floor rack of ingenious
design. All units are fully accessible through the removable
front gates, for coil changing antenna network adjustments,
etc. incorporates everything from microphone leek to impedance
matching antenna network.
- R. F. LINE UP- 47 crystal
oscillator, two 46's buffer, 03-A amplifier.
COVERAGE - 1.7, 3.5, 7 and 14 MC Bands.
- POWER SUPPLIES
- 1050 and 1200 volts at 400 MA choke input, 8 mfd Pyronal condenser
used and 400 volts at 300 MA.
- SPEECH AMPLI. FIER -
Special four stage high gain speech amplifier self contained
from microphone jack to gain control.
- MODULATOR -
Two 800's are used in the Class B Modulator. 100% modulation.
- BIAS - No bias batteries of any kind required.
- ANTENNA UNIT - Impedance matching network supplied for
use with any type of antenna available.
CONTROLS - Terminations provided for operating all switches
from operating table.
- SIZE - 60" high, 19%" wide,
ANNOUNCING II NEW GROSS C8-300
B Modulated Radiophone Transmitter 250 Watts Output. Attractively
LEST YOU FORGET:
Gross Radio's Engineering
Department is under the direct supervision of J. Gross who has
had over 20 years experience in the construction of transmitters
of various types. Mr. Gross has for 12 years been actively engaged
in manufacturing transmitters. The first crystal controlled
transmitter advertised in OST was designed by him. Ultimately,
the long experience and fine reputation of the company you buy
from is your best guarantee of satisfaction.
Literature Sent Upon Request
GROSS RADIO, INC.
VESEY STREET, NEW YORK