Associated Merchandising Corp. 125Z Schematic

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Product Information:
Model:125Z
Manufacturer:Associated Merchandising Corp. (AMC)

Schematics Content:

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Page 1:

__ __ AMC PAGE 18-3
ASSOCIATED MERCHANDISING CORP. MODEL 12;Z'

Jv D NOT CONN Tl NS T0 __ ,_
ALL RESISTORSIQ WATT ANUALL
uNLEss orHERwlsE MARKED I

Q) L405 LOOP ASSEMBLY

(C) moe 2:10!! TRANSFORMER

5200*! VOLUME CONTROL 8 SWlYCH

\,402'| OSCILLATOR cotL
5.200 OUYPUT TRANSFORMER

LINE VOLTAGE: This receiver is designed for operation on 105-125 Volts,
50-60 Cycles, either Alternating or Direct Current (AGDC).

POWER CONSUMPTION: 30 Watts.
TUNING RANGE: Broadcast: 540 to 1650 Kilocycles (180 to 555 meters).

DIAL: The Dial Scale is calibrated in Kilocycles times 10 to correspond l
with newspaper or periodical listingsA

TUBES: The tubes used and their functions are as follows:

lZBEG Converter 12AT6 Detector, Avc and Audio Amp.
lZBAB I. F. Amplifier SUBS Beam Power Amplifier
35W4 Rectifier

CAUTION: If this receiver is operated on D. C. (Direct Current), and you cannot
obtain reception although the tubes are lighted, reverse the lin'e cord plug to
obtain the correct polarity. Objectionable hum or noise may also be eliminated
on A. C, operation by reversing the line cord plug`

(C)John F. Rider

Page 2:

MODEL leZ ASSOCIATED MERCHANDISING CORP.

ALlGNMENT: Should it become necessary at any time to check the alignment
of this receiver, proceed as follows:

(1) Set the Signal Generator to 455 KC and connect to the Stator Lug on the
rear section of the Variable Capacitor. Connect the Signal Generator
ground lead to the chassis. Connect a suitable output meter across the
Speaker Voice Coil Connections. Turn the Volume Control to the maximum
position. Turn the Variable Capacitor to the extreme clockwise position.

Adjust the trimmers located at the top of the first and second 1. F. Trans-
iormers for maximum output as indicated on the output meter.

Loosely couple the Signal Generator Ground Lead to the loop and set to

With the Variable Capacitor set at the extreme clockwise position, tune in
the 1650 KC signal by means of the Oscillator Trimmer on the Variable
Capacitor (front section).

(5) Set the Signal Generator to 1500 KC and turn the Tuning Control so that
this frequency is indicated on the dial. Adjust the Antenna Trimmer on the
Variable Capacitor (rear section) for maximum output. No other adjust-
ments are necessary.

TRIMMER

TRIMMER AND TUBE LOCATION DIAGRAM

INSTALLATION: The Model 125-2 is complete in every detail for efficient and
immediate operation. A self-contained Loop Antenna is included, which will
give excellent results in most locations. Due to the directional properties of the
Loop, it may be advantageous to turn the receiver to the left or right in noisy
locations for maximum signal and minimum noise. A best position tor recep-
tion c-a-n always be found. In unfavorable locations where distant reception is
required, a well-constructed outside antenna may be used, and connected to
the Green wire labeled I'Ant" at the rear of the Loop. A water or gas pipe may
be used as a ground and connected to the Block wire labeled "Gnd," at the
rear of the Loop.

MINOR REASONS FOR FAILURE TO FUNCTION: Defective tubes, defective
Volume Control and On-Off Switch, line cord reversed on D.C., defective line
cord plug.

(C)John F. Rider

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