Philco Mdel 80

10/22/2009 1:52:12 PMfrank goddard

Hi Folks.

The Philco Model 80 I am working on is turning me in circles. progressive weakness of signal through all stages following the first detector. All tubes test fine as does inter tube coupling. No dodgy caps or ground faults via iffy components. Any ideas?

Thanks. Frank. Doncaster England.

10/22/2009 3:17:48 PMWarren

Could be the antenna coil. See here for a repair of that.

http://radioattic.com/item.htm?radio=0096331

Or here for a few more tips

http://www.philcorepairbench.com/tips/svctips.htm

10/22/2009 4:22:11 PMWarren

Posted wrong first Link. Sorry about that. See this one about the Green Dot thing. Scroll down page to see it.

http://www.oldradiosrus.com/build.html

10/22/2009 5:34:30 PMJohn Stroebel

I replaced all capacitors and most of the resistors in my unit. Capacitors would be the first thing I would change, but those old high impedance dogbone resistors can creep up in impedance significantly.

:
:
:Hi Folks.
:
:The Philco Model 80 I am working on is turning me in circles. progressive weakness of signal through all stages following the first detector. All tubes test fine as does inter tube coupling. No dodgy caps or ground faults via iffy components. Any ideas?
:
:Thanks. Frank. Doncaster England.
:

10/24/2009 10:53:03 AMfrank

Many thanks lads. You have given me hope.

FRank

:I replaced all capacitors and most of the resistors in my unit. Capacitors would be the first thing I would change, but those old high impedance dogbone resistors can creep up in impedance significantly.
:
::
::
::Hi Folks.
::
::The Philco Model 80 I am working on is turning me in circles. progressive weakness of signal through all stages following the first detector. All tubes test fine as does inter tube coupling. No dodgy caps or ground faults via iffy components. Any ideas?
::
::Thanks. Frank. Doncaster England.
::
:

10/24/2009 10:53:03 AMfrank

Many thanks lads. You have given me hope.

FRank

:I replaced all capacitors and most of the resistors in my unit. Capacitors would be the first thing I would change, but those old high impedance dogbone resistors can creep up in impedance significantly.
:
::
::
::Hi Folks.
::
::The Philco Model 80 I am working on is turning me in circles. progressive weakness of signal through all stages following the first detector. All tubes test fine as does inter tube coupling. No dodgy caps or ground faults via iffy components. Any ideas?
::
::Thanks. Frank. Doncaster England.
::
: