TY - BOOK ID - 132403029 TI - Practical television: valves and their habits PY - 1965 PB - London Practical Television DB - UniCat KW - Telecommunication technology KW - television [telecommunication system] KW - TV (televisie) KW - telecommunicatie KW - televisietoestellen UR - https://www.unicat.be/uniCat?func=search&query=sysid:132403029 AB - ER -