02-11-2014, 10:03 PM
well have now changed all the wax caps
apply mains via 40 watt bulb for 10 minuets then switch to full mains .
dial lamps light as do valve heaters .
touching the gram input produces buzz so audio stage ok but no signals and yes I remembered to plug in an aerial.
touching the top cap of the ECH35 did not produce any sound so tried another one.
I now have a strong signal from 1500 mt LW and week stations on MW and SW.
taking these latest photos I find there is another wax cap hidden behind the rear panel will have to work out what it does and change it.
as an aside I did not have any 16/16mf caps so fitted a 16/32uf 16uf to the rectifier.
next will be to change that cap and check the resistors.
I could realy do with some voltage readings,
rob t
apply mains via 40 watt bulb for 10 minuets then switch to full mains .
dial lamps light as do valve heaters .
touching the gram input produces buzz so audio stage ok but no signals and yes I remembered to plug in an aerial.
touching the top cap of the ECH35 did not produce any sound so tried another one.
I now have a strong signal from 1500 mt LW and week stations on MW and SW.
taking these latest photos I find there is another wax cap hidden behind the rear panel will have to work out what it does and change it.
as an aside I did not have any 16/16mf caps so fitted a 16/32uf 16uf to the rectifier.
next will be to change that cap and check the resistors.
I could realy do with some voltage readings,
rob t
if its made by hand it can be repaired by hand
