[Hallicrafters] S-38 Pilot Lite

[Gerry Steffens]

The lamp is indeed a #47.

It is connected from the plate and filament tap of the 35Z5 (these are
shorted together, pins 5 & 3) to the side of the line plug not connected
to the power switch.

Another way to describe it is in parallel with the 330 ohm resistor
connected from the 35Z5 filament center tap to the unswitched side of
the power plug.

Gerry

Collecting & Restoring E.H. Scott, 
McMurdo Silver, Hallicrafters, Zenith 
Transoceanic and any other interesting 
radio since 1959
Gerald Steffens P.E.
Rochester, MN


  
-----Original Message-----
From: hallicrafters-admin at mailman.qth.net
[mailto:hallicrafters-admin at mailman.qth.net] On Behalf Of Bill
Sent: Monday, July 14, 2003 7:50 AM
To: Hallicrafters
Subject: [Hallicrafters] S-38 Pilot Lite

Friend of mine got an S-38 and noticed the # 47 bulb pilot lamp was
wired
across i.e.. shorted out deliberately.  He also noticed the filaments
are
wired
in series to equal the line voltage.  He assumed the # 47 bulb might
have
been
part of this string and wired the bulb in series with the filaments.

The bulb burned too brightly and may have burned out.  I don't know.
Anyway,
does anyone know where this bulb should be wired in the S-38?  If it is
in
series with the filaments, it must be some other bulb type.

K2WH

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