04-08-2016, 10:13 PM
Here we go with yet another vintage receiver restoration.
[Image: http://www.philcoradio.com/images/phorum...0T_001.jpg]
This Fisher model 200-T is a 1968 model and is rated at 20 watts per channel. It's new enough that it uses all silicon transistors. It is unusual in its symmetrical design, more like its larger (and older) tube cousins.
This particular one was still working, but one channel is a little bit weak and it is past due for some electrolytic replacements - everything inside is still original.
[Image: http://www.philcoradio.com/images/phorum...0T_002.jpg]
I plan to replace all electrolytic capacitors in the power supply and audio output sections, along with the four rectifiers, and go from there.
I know some of you are wanting to ask, Why don't you leave the original rectifier diodes in place?
Here's why:
[Image: http://www.philcoradio.com/images/phorum...0T_003.jpg]
It's going to take some serious heat to unsolder all of those diodes from the main filter electrolytic. New rectifiers are cheap, so I am not going to take any chances on ruining the old ones - it's easier to just replace them.
[Image: http://www.philcoradio.com/images/phorum...0T_001.jpg]
This Fisher model 200-T is a 1968 model and is rated at 20 watts per channel. It's new enough that it uses all silicon transistors. It is unusual in its symmetrical design, more like its larger (and older) tube cousins.
This particular one was still working, but one channel is a little bit weak and it is past due for some electrolytic replacements - everything inside is still original.
[Image: http://www.philcoradio.com/images/phorum...0T_002.jpg]
I plan to replace all electrolytic capacitors in the power supply and audio output sections, along with the four rectifiers, and go from there.
I know some of you are wanting to ask, Why don't you leave the original rectifier diodes in place?
Here's why:
[Image: http://www.philcoradio.com/images/phorum...0T_003.jpg]
It's going to take some serious heat to unsolder all of those diodes from the main filter electrolytic. New rectifiers are cheap, so I am not going to take any chances on ruining the old ones - it's easier to just replace them.
--
Ron Ramirez
Ferdinand IN