PYREX Radio Insulators

What Users Say
Broadcasting Station KGFJ, Los Angeles, Cal.
    "Previous to about six months ago, we had been using porcelain and composition insulators in our antenna system. During our recent overhaul we replaced these insulators with 8-in. PYREX Insulators. We were agreeably surprised to find that this change had decreased our antenna radiation a full ampere, proving to us the efficiency of this type of insulation.
    "We have, since then, replaced a composition lead-in insulator of a well known make with a PYREX Insulator and judging from the results obtained from our previous experience, we are satisfied that this change also adds to the efficiency of this station.
    "We would recommend stations who do not use PYREX Insulation to try it and watch results." -- H. D. Hancock, Mgr.

Radio Station KTT, Alaska Pacific Salmon Corporation, Drier Bay, Alaska.

    "This station is using a 250-watt combination telephone and telegraph transmitter with wave length range of 50-200 meters and 600 to 2000 meters.
    "We are using ten 7-in. PYREX Antenna Insulators also two large PYREX Lead-in Bowls in the radiating system. Have used PYREX Insulation for several years and have never experienced trouble with them either electrically or mechanically. If there were a better insulator, would certainly use them.
    "The year 1926 saw he first vacuum-tube equipment in the Alaska salmon canneries and since the passage of the new radio law, practically all the spark sets have been replaced with tube transmitters. I believe you will find all new installations using PYREX Insulators." -- J. D. Cole, Operator.
Tropical Radio Telegraph Company, Boston, Mass.
    "I have your letter relative to our WBF Station and the use of PYREX Insulators. WBF is one of our chain of commercial radio telegraph stations in the United States and Central America. Our high-powered terminal and marine stations are located at Miami, Fla., and New Orleans, La. We also maintain marine stations at Mobile and Fort Morgan, Ala.
    "We have used your PYREX Entering Insulators and PYREX Stand-Off Insulators for various purposes at practically all of our stations, and have found them quite satisfactory wherever they have been supplied." -- William E. Beakes, Mgr.