*UNTESTED* 1987 LPB AM-60P AM Radio 60 Watt Broadcast Transmitter - Made in USA

Description

*UNTESTED*
1987 LPB AM-60P Adjustable AM Radio Broadcast Transmitter 60 Watts
This is a professional commercial solid state AM radio broadcast amplifier made in Pennsylvania by LPB (Low Power Broadcast).
Manuals and schematics are all freely available online for this unit.
It uses one main exciter board and two discrete 30-watt amplifier units with individual power supplies to produce an adjustable level of 10-60 watts of broadcast output power.
*UNTESTED* Nothing appears damaged. Some typical use wear on the case. Internals look very good.
This unit came from the estate of a professional commercial radio engineer.
Transmitter Specifications:
R.F Power Output ................................................. Adjustable, 6 to 60 Watts (carrier)
R.F Power Adjustment .......................................... Internal
R.F Power Indicator .............................................. Internal Meter
Type of Emission .................................................. 30A3 (Amplitude Modulation)
Frequency Range ................................................. 530 kHz to 1610kHz
R.F Output Impedance ......................................... 50 ohms, unbalanced SO-239 connector
Carrier Frequency Stability ................................... ± .003%, -20°C to + 50°C 105 to 128 VAC line (-4°F to +122°F)
R.F Harmonic Suppression ................................... <45dB below carrier
Carrier Shift ........................................................... < 2%, 0-100% Modulation
Noise Level ............................................................ < 55dB below 100% modulated carrier
Audio Input Impedance  ......................................... 600 ohm, transformer balanced
Audio Input Level ................................................... -15dBm to +1OdBm for 100% Modulation
(Optional Limiter Factory set to prevent more than 100% Modulation)
Attack Time ........................................................... 3.3 ms
Release Time ........................................................ 330 ms
Audio Frequency Response .................................. 20 Hz to 15 kHz ± 1.0dB
Audio Distortion ..................................................... < 2%, 95% Modulation
Modulation Indicator .............................................. Internal Meter
Modulation Control ................................................ Internal Adjustment
Power Input ........................................................... 117VAC, 50/60 Hz
Power Consumption .............................................. 250 Watts
Dimensions ........................................................... 12"D, 6.5"H, 23"W
Weight: .................................................................. 36 Ibs