March 2000 Column
Return to the Old Radio home
Ron Lawrence - KC4YOY
There is an original Clough-Brengle blueprint on the
inside of the top cover. The transmitter's tubes are: a 2A5 oscillator,
a 46 buffer, two 46 tubes push-pull in the output and a single 83 in the
power supply. There is an interesting switch in the upper left hand corner
of the front panel that selects between 2 crystal sockets and is labeled
"Amateur / Official". There is also an interesting way of checking
the current of each stage using a single meter with four momentary push
button switches. They select: "Oscillator Plate Current", "Buffer
Plate Current", "Amplifier Grid Current", and "Amplifier
Plate Current". The cabinet is finished in black wrinkle paint like
most ham gear of that era.
Click here for schematic: 110KB
Photo of the original owner: Chas. Tommy McLees, W4YBN
on Ron's Clough-Brengle, click here.
KC4YOY's station, consisting of the Clough-Brengle
transmitter and a first generation 1934 National HRO receiver. A vintage
mission style library desk with matching chair create a "snapshot"
of an amateur station just as it might have looked in the mid to late 1930's,
complete with a vintage candlestick phone, a vintage desk lamp, world globes
of the period, and 1930's ARRL handbooks and QST's.
Ron's collection that now contains nearly 500
radios plus several thousand other pieces including tubes, speakers, headphones,
vintage magazines and books on early radio.
John Dilks, K2TQN 125
Warf Road, Egg Harbor Township, NJ 08234-8501 e-mail: