Tradio LU-6 Schematic

Tradio LU-6

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Product Information:
Model:LU-6
Manufacturer:Tradio

Schematics Content

Page 2:

1. I. F, Alignment

A. Set signal generator at 455 k.c,

B. Connect output meter across voice coil,

C. Put a, 1 MFD condenser in series with the signal generator.

D. Connect other end of this condenser to grid of the 125A7 (Pin # 8).

E. Connect ground of signal generator to A.C. switch on the volume control.

F. Turn both volume controls to maximum volume.

G. Adjust screw on bottom and screw on top of I.F. transformers for maximum output on meter.

Wave Trap Alignment

A. On certain LU - 6 sets the wave trap is situated directly behind the tuning unit. These traps are tunable, Wave trap alignment on these sets is the same as given for model 1-5. Note: On certain LL - 6 chassis, the wave trap is not situated directly be hind the tuning unit. These sets are fix-tuned and do not have to be adjusted.

3. R.F. Alignment

A. Chassis' bottom plate must be on.

B. Set signal generator at 1630 k...

C. Put 200 MMFD condenser in series with signal generator,

D. Connect other end of this condenser to antenna of receiver.

E. Set tuning dial at 1630 k.C.

F. Tune oscillator trimmer on top of tuning unit nearest speaker (# 9345) for maximum output,

G. Adjust trimmer furthest away from speaker for maximum output,

4. Tracking

A. Set tuning dial of receiver at 600 k.c.

B. Set signal generator at 600 k.c, and adjust slug in center of tuning unit for maximum output,

Page 3:

USNG THE COVER AS A TEMPLATE SPOT THESE TWO (2) HOLES ON THE DESIRED WALL POSITION FOR MOUNTING COVER TO THE WALL USE

WHEN ORDERING REPLACEMENT LOCKS STATE SIZE OF THREADED HOLE.

TO REMOVE COVER FROM CASE
(1) REMOVE LOCK FROM CASE BY TURNING COUNTERCLOCKWISE UNTIL THE LOCK BECOMES SEPARATE FROM THE CASE.
(2) SWING THE KEY END OF THE COVER OUT WARD ONE (1) INCH FROM THE CASE AND PULL THE COVER TOWARDS YOU.

TO LOCK CASE TO COVER
(1) TURN THE LOCK, WITH THE KEY INSERTED, INTO THE LOCK BUSHING UNTIL THE LOCK CYLINDER IS FLUSH WITH THE BUSHING FACE AND THE KEY IS NA VERTICAL POSITION.
(2) REMOVE THE KEY WHILE IT IS NA VERTICAL POSITION.

CAUTION: AFTER LOCK CYLINDER WITH KEY STILL INSERTED IS SEPARATED FROM THE LOCK BUSHING DO NOT RE MOVE KEY FROM CYLINDER.