Страница 1: ...Lafayette MODEL HA 230 Stock No 99 2522WX co COMMUNICATIONS RECEIVER INSTALLATION AND OPERATING MANUAL...
Страница 2: ...at 60 db 2 Ke at 6 db without Q Multiplier 0 8Kes at 6db with Q Multiplier SPEAKER OUTPUT seeeeeeeeseees 40 8 Ohms HEADPHONE OUTPUT 0 Low Impedance POWER CONSUMPTION 50 watts at 117 volts AC 60 cps T...
Страница 3: ...connections can be used to obtain satis actory results INVERTED L ANTENNA The inverted L type of antenna will provide satisfactory performance over the entire tuning range Simply short A2 and E with...
Страница 4: ...select ivity often required for optimum reception of signals in the congested short wave bands In your receiver the Q Multiplier circuit serves a dual function Q Multiplier and BFO For CW and SSB rec...
Страница 5: ...to be used Calibration of the main tuning scales is correct when the bandspread pointer is set at 100 on the LOGGING SCALE Bandspreading on the amateur bands is carried out in the following manner Set...
Страница 6: ...icated in the chart AVC is switched off and the IF GAIN control is used as a volume control Tune signal to zero beat The BFO Q MULT FREQUENCY control should then be adjusted on either side of white do...
Страница 7: ...er Circuit BFO Q MU LT FREQ UENC Y IF GAIN Adjusts IF Gain Used As Volume Control For CW Operation ANT TRIM Adjusts Receiver For Best Antenna Match Over En tire Frequency Range MAIN TUNING Tunes Frequ...
Страница 8: ...BFO for CW and SSB operation the circuit which acts as an oscillator is coupled to the IF stage via stray coupling and provides the signal necessary for producing a beat note or for carrier reinserti...
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Страница 11: ...Vi GBAG V2 GBE6 V4 GAVE VS GBAG VG GBASG V7 GAVG aie V8 GAQS oe ony 55 S FUNCTION Switen _1i Tea eve seman reve 1 en Cr ee CBIR Maid Tenis oy NOTES 2 SHOWN IN HIGH RANGE POSITION 10 5 30MC b cHaSSIS G...
Страница 12: ...LTIPLIER BFO UFs VI GBAG V2 GBEG V4 GAVG VS GBAS V6 SHORTING B4R FUNCTION SwiTCr gigs aa NOTES S 2 SHOWN IN HIGH RANGE POSITION 10 5 30MC CHASSIS GROUND S 1 SHOWN IN OFFPOSITION SWITCH S2 SCHEMATIC DI...
Страница 13: ...11 IF IFe DETECTOR ANL ISTAUDIO AUDIO OUTPUT V5 GBAS V6 GBAS V7 GAVE V8 GAQ5 0 ANL ow SS FUNCTION SWITCH ol 7 AG W7V Fp ti eee i oa...
Страница 14: ...ch determines the mode of operation In all positions except OFF AC power is applied to the primary of Tl thus powering the receiver In REC AM DC plate voltage is applied through the external jumper pl...
Страница 15: ...switch to Q MULT Q MULTi until a zero beat is heard also ac BFO Q MULT FREQUENCY to mid posi companied by a minimum reading on the tion twhite dot voltmeter Note that the minimum point will Reduce AF...
Страница 16: ...1 Oco Ocm 1 Oco 2 Ocm 2 e to 2 Oim 2 ta 2 Oco 3 Ocm 3 TRIM coil TRIM cotl Oco 4 Qem 4 Figure B LOCATION OF RF ADJUSTMENTS Bc 10 5 30 1 6 4 8 Oto 3 Olm 3 Gta 3 12 o clock position loosen set screw plac...
Страница 17: ...Ant Adj k 4 8 14 5 5 0 MC 5 0 MC Lo 2 Osc Just for Bez reading on voltmeter 4 8 14 5 14 0 MC 14 0 MC Co 2 Osc Figure Repeat steps 8 and 9 until calibration is correct at both ends of the scale 5 0 and...
Страница 18: ...r wire Voltage selector switch in 117 volt position SOCKET PIN NUMBERS 6 3V AC 6 3V AC Ge 6 3V AC 6 3V AC 6 3V AC 6 3V AC Place FUNCTION switch in Q MULT position and remove V4 from socket Check volta...
Страница 19: ...ng after cutting off any excess inches of cord free at this point Restring in the cord POINTER TO 100 ON LOGGING SCALE Nu LEAVE 4 FREE AT START FINAL TIE MAIN TUNING SHAFT MAIN PULLEY FULLY COUNTER CL...
Страница 20: ...1 R2 R4 1M tmeg ohm 1 4 watt 2 R3 R5 R13 330 ohm 1 2 watt 3 R6 22K kil ohm 1 4 watt 1 R7 Rll R14 R16 1K ohm 1 2 watt 4 R8 22K ohm 1 2 watt 1 RI R18 2 2M ohm 1 4 watt 2 R10 3 3K ohm 1 2 watt 1 Ri2 100...
Страница 21: ...C Antenna Coil Adjustable 4 8 14 5 MC Antenna Coil Adjustable 10 5 30 MC Antenna Coil Adjustable 55 1 6 Mixer Coil Non adjustable located in the MIXER section 1 6 48MC Mixer Coil Adjustable 4 8 14 5 M...
