Specifications - Elenco Electronics AM/FM-108TK Manual

DC VOLTAGES
The voltage readings below should be used in troubleshooting the FM section. (Switch at FM position.)
Ql B
1.6
E.9
c
7.o
1.3
.7
7.5
1.3
.6
7.5
1.2
.6
6.6
B
E
c
B
E
c
B
E
c
3.3
3.0
7.1
1.6
1.3
7.O
Q2B
E
c
Q3B
E
c
Q4
Q5
Q6
Test
Conditions
1. Volume set to minimum.
2.
Connect TP14 to
TP15 with
a
jumper wire.
3.
Battery voltage = 9V
4.
All
voltages
are
referenced
to
circuit
common.
5. Voltage readings can
vary
+10o/"
SPECIFICATIONS
Audio:
Frequency response 3dB
drop into 8 ohm resistive load.
Low
end 800H2 - high end 120kHz
Maximum power out at 10% total harmonic distortion.
500 MilliWatts
Typical
audio gain at 1000H2: 150 times
Typical
% distortion at 100 milliwatts output
<27".
AM Radio Specifications:
Tuning range
-
S2QkHz
to
1620kHz
lF frequency 455kHz
Tracking =
13dB from
700kHzlo
1400kHz
1OdB
signal
to noise at 200 microvolts typical
FM Radio
Specifications:
TUning
range
=
SBMHz
to
108MHz
lF
frequency 10.7MHz
Tracking t5dB
from 90MHz to 106MHz
1OdB
signal
to
noise
at
12 microvolts typical
Uses ratio detector and full time auto frequency control.
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