Home |
Search |
Today's Posts |
|
Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
|
LinkBack | Thread Tools | Display Modes |
#1
Posted to rec.antiques.radio+phono,sci.electronics.repair
|
|||
|
|||
Ekco CR280 valve/tube car radio
A long time since looking at such a radio
to check-over/repair as no known history and not powered up in any way http://home.graffiti.net/diverse:graffiti.net/cr280.jpg Took apart section by section with bits in separate labelled bags I will test the valves later today ECH42, EF41, EBC41,EL42 Seems surprisingly good condition inside. Will have to replace the 12V (-ve supply) lead and speaker lead as perished and the on/off switch is ohmic. The vibrator had obviously been removed at some point (putty-stuff is split) in the past. what to look out for when testing these and how to remove that putty-like goo if necessary, warming with hot-air?. I assume test with load attached but what to do if a problem within the vibrator.? What ohmage speaker? 2.5, 3 or 4 ohm ? Could measure primary R of the output matcher more accurately if any help but primary 692 ohm and secondary between 0.1 and 0.2 ohm -- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on http://home.graffiti.net/diverse:graffiti.net/ |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
Valve/tube car radio AM to FM conversion ideas? | Electronics Repair | |||
Valve,Butterfly valve,Globe valve,Check valve,Ball valve,Plug valve,Marine valve,Gate valve,Flow control valve | UK diy | |||
Repairing an old Grundig tube radio | Electronics Repair | |||
BMC Cash register model CR280 | Electronics Repair | |||
Magnavox Tube Radio Has Too Much Bass!! | Electronics Repair |