Seems to be one of the biggest collections of vintage instruments manuals from several brands.
http://bee.mif.pg.gda.pl/ciasteczkowypotwor/AP, Adret, Advance Instruments, Advantest, Analigic, Anritsu, Arlunya, Atten, Avantek, Avo, Awa, B&K, B.W.D, BK precision, Ballantine, Belco, Bird, Boonton, Calstan, Cossor, Cushman, Dana, Datron, Delta Elektronika, Dick Smith, Dolch, Du Mont, EIP, EMG, EMI, ESI, Eddystone, Eico, Elektro - Automatik, Fairchild, Farnell, Ferisol, Fluke, GW Instek, General Radio, General Resistance, Goldstar, GoodWill, Gould, Gould Advance, Grundig, HP, Hameg, Heathkit, Hitachi, Huges, Hung Hang, IEC, IRH, Inne, Iwatsu, Jak ustawi, KIT-y polskie Jabel Nord Elektronik, KWH, Katalogi itp, Keithley, Kenwood, Kepco, Kikusui, Krohn Hite, Lafayette, LeCroy, Leader, MFJ, Marconi, Mastech, Mercury, Metex, Metrix, Micronta, Mierniki, Motorola, Mullard, NDN, Narda, Nicolet, Nordmende, Obliczanie limitera, Oritel, Palec, Palomar, Panasonic, Philips, Polskie mierniki, Pracitronic, Prema, Protek, R&S, RE Radiometer Copenhagen, RFT, Racal, Radameter, Radiall, Rigol, Robotron, Rosyjskie, Ruskie, Sanwa, Schlumerger, Scientific Atlanta, Shiba Soku, Siemens, Sinclair, Slade, Solar, Solartron, Systron Donner, TEC, TMC, Tandy, Taylor, Tek, Telefunken, Telequipment, Telewave, Tesla, Thandar Sinclair, Topward, Transpro, Triplet, Unaohm, Uni-t, University, Velco, Voltcraft, Wandel Golterman, Wavetek, Weller, Weston, Wiltron, srs, statron.