This digital tuner-amp receiver is an absolutely amazing beast! It
also includes the original Manual, Schematic and Illustration booklet. This
unit has been well taken care of.
It has been tested and works great. *when set on FM the digits don't change.* It does play the FM radio stations and the signal meter works. AM works fine. Overall the cosmetic
condition is in nice shape, there are a couple of blemishes which are shown in
the pictures. It is super clean.
I did have to make jumpers for the back of the unit. I made them with
12ga OFC Copper speaker wire. Those are included.
Also, the original speaker wire plugs are missing. I have found a way
around this though. I use spade connectors, and attach them to the end of the
speaker wire. Please see pictures. I will include 10 new spade connectors as
well.
More info….
From its half-inch tall LED frequency readouts to its extraordinarily low
distortion, the Heathkit AR-1515 is the finest receiver heath has ever
designed.
The Ar-1515's digital Readout is far more accurate thas dial-type tuning.
Simply tune to the exact frequency you want. Signal-strength and center-channel
meters then help you "zero in" on the strongest signal and lowest FM
distortion. There's even an oscilloscope output to monitor multipath
distortion.
The amplifier section meets the same high standards. That extra margin of
performance assures clean, wide-range sound without audible strain or struggle
on even the most complex musical passages. And you'll hear the music over a
background of silence - hum and noise are 65 dB below full output in phono and
80 dB below full output on high-level sources.
The amplifier section is also unmatched in convenience. All the
frequently used controls - volume, input selector, stereo/mono switch, tuning -
are on the front panel. The secondary controls are concealed behind a hinged
door. Convenient indicator lights on the front panel show, the input you've
selected. The digit light only when listening to AM or FM and only the
necessary tuning meters are illuminated - signal-strength only for AM,
signal-strength and center-tune for FM.
The bass and treble controls act at the frequency extremes to
compensate for room acoustic and program deficiencies while maintaining smooth
mid range response. And the AR-1515's pre-amp out/amp in jacks allow it to be used
with any audio equalizer, such as the Heathkit AD-1305.
The AR-15151 is a complex and sophisticated receiver, but its well
thought out, modular design and color-coded wiring harnesses simplify assembly.
Specifications:
Amplifier Section:
Frequency Response: 8 Hz to 45 kHz (+0 -1 dB); 4 Hz to 80 kHz (+0 -3 dB)
Intermodulation Distortion: less than 0,08% (from 0,25 to 70 watts, full
output)
Damping Factor: greater than 60
Input Sensitivity:
Phono 1 , 2 : 2 mV
Aux, Tape , Dub. : 200 mV
Input Overload:
Phono : greater than 100 mV
Aux, Tape, Dub. : greater than 10 V
Hum and Noise:
Phono (2 mV reference) : --65 dB
Aux, Tape, Dub. (200 mV reference): -80 dB
FM Monophonic:
Frequency Response: 20 - 15,000 Hz ±1 dB
Antenna: 75 Ω or 300 Ω
Sensitivity: 1,8 µV
Selectivity: 100 dB
Image rejection: 90 dB
Mute Threshold: 0 -5 µV variable
FM Stereophonic:
Channel Separation: 40 dB or greater at mid-frequencies; 35 dB at 100 Hz;
20 dB at 10 kHz; 20 dB (Nominal) at 15 kHz
Harmonic Distortion: 0,35% with 100% modulation
19 and 38 kHz Suppression: 60 dB
SCA Suppression: 60 dB
AM Section:
Sensitivity: 5 µV with 50 Ω direct input
Selectivity: 200 dB at 10 kHz
AM Antenna: external static-shielded loop
Image Rejection: 70 dB at 600 kHz, 50 dB at 1400 kHz
General:
Accessory AC Outlets: One switched and one unswitched
Power Requirement: 120/240 V AC, 50/60 Hz
Dimensions (W x H x D): 21-1/2" x 6-3/16" x 15"
Weight (net): 35,8 lbs