BORDEN RADIO COMPANY WWW.XTALMAN.COM
HEADSETS AND EARPHONES
*******************************************
NEW!!
NEW-OLD-STOCK HIGH IMPEDANCE H-43B/U MILITARY HEADSETS!!
Brand New!!
New-Old-Stock H-43B/U Military Surplus High Quality High Impedance Magnetic Headsets!! Borden Radio Company has acquired a number of these new old stock, totally unused, High Quality 4600 Ohm magnetic headsets. These headsets come with a 3 foot coaxial cable cord and a BNC male plug. They perform very well with our Cornell WW-II Foxhole Radio, our Crystal Radios, and with our Armstrong One Tube radio. They work very well with any crystal or tube radio. The high 4600 Ohm Impedance allows crystal sets to tune sharper by not loading down the tuned circuit as much as regular 2000 Ohm headsets. These fine headsets were made in USA from the 1980s to the 1990s for military use on Geiger Counters in tough battlefield conditions. They are extremely well made and are very rugged and also sensitive. We clean these and thoroughly test each one before it is ready to go out. We supply each headset with a Clip Leads-To-BNC Female Adapter Kit at no extra cost! We guarantee them to perform as advertised.
NEW OLD STOCK HIGH IMPEDANCE H-43B/U MILITARY HEADSET
SOLD OUT AS OF JUNE 30, 2023. WE WILL BE LOOKING FOR MORE OF THESE. IF WE CAN FIND SOME, WE WILL REPOST THEM
******************************************
1/4" PHONE JACK TO CLIP LEAD ADAPTER KIT FOR HIGH IMPEDANCE HEADSET and TELEX 300 OHM HEADSET!
Adapter Kit to adapt 1/4" inch headphone plugs to the "PHONES" fahnestock clips on our radio kits. This kit consists on a standard 1/4" phone jack and two different colored clip leads. This adapter will allow you to use any headset with a 1/4" Phone Plug and our Telex 600 ohm Headsets on any radio that has fahnestock clips or binding posts for the headset connections.
1/4" PHONE JACK ADAPTER KIT $4.95 each
****************************************
We have acquired a number of these USED Telex High Quality 300 Ohm magnetic headsets. They perform very well with our Armstrong One Tube radio when using one of the impedance matching transformers we sell. These can also be used with all of our radios with the impedance matching transformers we sell. We clean and thoroughly test each one before it is ready to go out. They show some minor signs of having been used in the classroom for language instruction. Some may have a little writing on them. We guarantee them to perform as advertised.
JUST A FEW LEFT!!!
USED TELEX 300 OHM MAGNETIC HEADSET
$24.95
*******************************************
These high quality adapters allow you to use headsets that have 1/4" mono phone plugs with devices that require 1/8" ( 3.5 MM) mono phone plugs, such as the Radio Shack Speaker/Amplifier that we sell.
1/4" to 1/8" (3.5 MM) Phone Plug Adapter $4.95 each
*******************************************
These high quality adapters allow you to use stereo headsets that have 1/8" stereo phone plugs with devices that require 1/8" mono phone plugs, such as the Radio Shack Speaker/Amplifier that we sell.
1/8" (3.5 MM) Stereo To Mono Phone Plug Adapter $4.95 each
*******************************************
These are the transformers that everybody in the crystal set world is talking about. These high quality transformers were designed by Bogen for PA systems in buildings where multiple speakers are used. A variable impedance matching transformer is needed at each terminal because of the varying number of speakers used in these custom installations. These transformers also just happen to be absolutely perfect for matching various low impedance headsets to the high impedance requirements of crystal sets and one tube sets. When used with one of our 12 position rotary switches and some fahnestock clips, you can build a very versatile variable impedance matching device called the "Uni-Match" as described by Steve Bringhurst on the Impedance Matching Headphones To Radio link on Darryl Boyd's "Stay Tuned" web site: http://www.crystalradio.net
http://www.crystalradio.net/soundpowered/matching/index.shtml
BOGEN T-725 IMPEDANCE MATCHING TRANSFORMER $12.97 each
*******************************************
XICON MINIATURE IMPEDANCE MATCHING TRANSFORMERS!
These high quality miniature audio transformers work well for matching low impedance headsets from low impedance to high impedance. They are a very good economical solution to your impedance matching needs. The Primary is center tapped 50K ohm impedance and 1.2 K ohm D.C. resistance. The Secondary is centertapped 1 K ohm impedance and 42 ohms D.C. resistance. They work very well in matching 32 ohm to 600 ohm headsets to crystal sets and one tube sets.
XICON MINIATURE IMPEDANCE MATCHING TRANSFORMER $7.95 each
******************************************
BRAND NEW CERAMIC EARPHONES WITH TINNED LEADS!!
These are brand new ceramic earphones that are made to an old case design. They are extremely loud and sensitive and will enhance the performance of any crystal set because of their near infinite impedance. Too low an earphone impedance will make a crystal set's tuned circuit tune broadly and with reduced volume. These flesh colored earphones are exact replacements (except for color) for the earphones on the old Rocket Crystal Radios and Miniature Germanium Crystal Radios. The original earphones can be replaced without harming the vintage radio and will bring them back to their original performance. The radios can be easily returned to their original condition when desired. Made in Taiwan.
Add a pair of Old Style Pin Plugs for a Total of $9.00 for an earphone and two pin plugs.
********************************************
Same high quality ceramic earphones as above except these come with 1/8" (3.5MM) phone plugs. We also sell the 1/8" (3.5MM) phone jack shown in the picture.
Earphone with 1/8" (3.5MM) phone plug $7.95 each
1/8" (3.5MM) phone jack $2.00 each.
Buy the earphone and Jack together for $9.50!
*****************************************
Old style earphone tip plugs. These are exact replacement tip plugs for antique earphones and can also be installed on our ceramic earphones with tinned leads. Nickel plated brass.
All Borden Radio Company products are sold plus U.S. Priority or First Class shipping according to your Zip Code in USA. Please email us your address for the cost of shipping.
2. For Credit Cards: Email us and tell us what you want to order and we will reply with your total including shipping & handling. Then click on the PayPal logo below and follow their simple instructions for sending money. You will need our PayPal address. Our PayPal address is wb5rex@earthlink.net
(outside U.S.A. please email for shipping cost)
