International Crystal Manufacturing Co.
Made-to-order crystals for Collins equipment. Give radio model number and/or Collins part number when calling as they are not listed in catalog. ICM will make band crystals as well as upper and lower sideband and calibrator crystals. VISA/MasterCard/AMEX P. O. Box 1768 Oklahoma City, Oklahoma 73101-1768 Phone: (800) 725-1426 Fax: (800) 322-9426 Web Site: www.icmfg.com Contact Email: sales@icmfg.comElectric Radio Magazine
ER is a monthly magazine that is devoted to vintage radio. ER is a source for the “Collins Compendiums” which are 3-ring-bound reprints of all technical service bulletins for the S-Line, KWS-1 and 75A-4 (three volumes). ER also stocks several books and videos about Collins equipment. An ER Magazine subscription is $34 per year in US ($45 first class mail) See their website at ermag.com . The current Editor is Ray Osterwald, N0DMS.
PO Box 242 Bailey, Colorado 80421-0242 Phone: 720-924-0171 Fax: email for fax instruction Contact Email: ray@ermag.com