Heathkit AR-1500A

 We've improved upon the Classic receiyer.

The tradition of heathkit stereo receiver superiority began in 1967 with the heathkit AR-15. then in 1971 came the Ar-1500. now, it's the AR-1500A, the world's classic receiver, improved once again. Design advancements include.

Phase lock Loop (PLL) multiplex demodulator with only one simple adjustment, your assurance of maximum separation, droft-free performance and long-term stability. Simplification of the AGC circuit resulting in significant improvements in AM performance. Improved output protection for better drive capability over taday's wider range of speaker impedances.

Now Easier To Build

In redesigning the AR-1500A, special care was given to making the kit even easier to build than before. A separate check-out meter is used to check out each step as assembly progresses. Factory-installed cable connectors are another new kitbuilding aid.

 Still tops in performance.

The precedent-setting performance specifications of the AR-1500 have, of course, been retained. Conservatively rated, the Ar-1500A puts out 180 watts, 90 per channel, into 8 ohms, with both channels driven, with less than 0,25% harmonic distortion. Two computer designed five pole LC filters and the 4-gang, front end combine for an FM selectivity beter than 90 dB with 1,8 µV sensitivity. And here are some things the specs won't show you. There are outputs for two separate speaker systems, two sets of headphones, preamp output, and monitoring of FM with an ascilloscope such as the Heathkit Audio-Scope. Standard inputs - all with individual level controls. Electronically monitord amplifier overload circuitry.

Specifications

Tuner FM Section

Monophonic:

Sensitivity:  1,8 µV

Selectivity:  90 dB

Image rejection:  100 dB

IF Rejection:  100 dB

Capture ratio:  1,5 dB

Harmonic Distortion: 0,5% or less

Intermodulation Distortion:  0,1% or less

Stereophonic:

Channel Separation:  40 dB or greater at midfrequencies; 35 dB at 50 Hz; 25 dB at 10 kHz; 20 dB at 15 kHz

Tuner AM Section

Sensitivity:  50 µV with external input; 300 µV per meter with radiated input

Selectivity:  20 dB at 10 kHz;60 dB at 20 kHz

Image Rejection:  70 dB at 600 kHz; 50 dB at 1400 kHz

IF Rejection:  70 dB at 1000 kHz

Amplifier Section

Dynamic Power Output per Channel:

Music Power Rating:  90 watts (8 Ω load);  1200 watts (4 Ω load);  50 watts (16 Ω load)

Continuous power Output per Channel:  60  watts ( 8 Ω load);  100 watts (4 Ω load); 40 watts (16 Ω load)

Power Bandwidth (for constant .25% THD):  less than 8 Hz to greater than 30 kHz

Frequency Response (1 watt level):  9 Hz to 80 kHz,  -1 dB

Harmonic Distortion:  less than 0,25% from 20 Hz to 20 kHz at 60 watts output

Intermodulation Distortion:  less than 0,1% with 60 watts output

Damping Factor:  Greater than 60

Channel Separation:  55 dB (Phono)

Output Impedance (each channel):  4 Ω through 16 Ω

Dimensions (W x H x D):  18-1/2" x 5-1/8" x 13-7/8"

Weight (less cabinet):  53 lbs