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Insomniac1217
New member Username: Insomniac1217
Post Number: 5 Registered: 4-2004
| Posted on Wednesday, November 02, 2005 - 4:48 pm: |
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I just acquired a nice President George radio in a trade.This radio has excellent ears and is a great sideband rig.Problem is i can't find very much info on it.Why is that?President still makes radios and the lincoln can still be purchased.Too bad people haven't heard of this radio |
Mrsandman
Member Username: Mrsandman
Post Number: 81 Registered: 1-2002
| Posted on Thursday, November 03, 2005 - 7:34 am: |
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50 Watt RF Power modification To get 50 Watt RF output power for President George, replace finale transistors Q501 and Q502 2SC1969 with 2SC2094 Cut Collector connection and cut cooling on right side of transistor. Solder 3 wires on the transistor for connection to PCB. Re-adjust VR201
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Mrsandman
Member Username: Mrsandman
Post Number: 82 Registered: 1-2002
| Posted on Thursday, November 03, 2005 - 7:36 am: |
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Resetting Access Codes a) Depress POWER NB/ANL and PROGRAM simultaneously and keep pressed down to the display lit off. b) Release POWER and keep pressed NB/ANL and PROGRAM down: "codE" flashes in the display, and wait for "codE" disappears. c) Release NB/ANL and PROGRAM d) Push MODE one times. e) Push M1 one times. f) Push M3 one times. g) Push PROGRAM one times. h) Push PROGRAM 4 times. i) Push POWER -------------------------------------------------------------------------------- Changing the configuration Programming : a) Turn your set on by pushing POWER. b) Turn your set off by pushing POWER, c) Depress POWER and keep pressed down. Your set goes on and then goes off. d) Keep POWER depressed and press PA and DIMMER simultaneously. e) Release POWER after 5 sec. while keeping PA and DIMMER pressed down: ''codE'' flashes in the display for 5 seconds. f) ''codE'' disappears and the display remains lit up. g) Release PA and DIMMER. h) Press : M1 for 240 ch. FM/AM/SSB (International configuration, 20 Watt AM/FM, 50 Watt SSB), the display goes out. M2 for 40 ch. FM 4 Watt and ch. 4-15 AM 4 Watt (Germany), the display goes out. M3 for 40 ch. FM 4 Watt (CEPT), the display goes out. MODE for 40 ch. FM 4 Watt (Britain and Poland), the display goes out. PROG for 40 ch. AM/FM/SSB 4 Watt (French standard), the display goes out. i) Enter your access code, then press POWER. Your set is now in new configuration. Available functions in the international configuration: DIMMER: In the international configuration only, the DIMMER key allows you to change band, thereby giving you the use of 240 channels A short depression allows you to advance by one band at a time - A B C D E F A.... (6 bands, 40 channels), A longer depression allows you to do the same thing in reverse - F E D C B A F ..... SELECT. This key allows you to go up or down by 5 kHz at a time around the reference channel. It is used in conjunction with the CH UP and CH DOWN keys. -------------------------------------------------------------------------------- Display test: a) Turn your set on by pushing POWER. b) Turn your set off by pushing POWER, c) Depress POWER and keep pressed down. Your set goes on and then goes off. d) Keep POWER depressed and press M1 and CH19 simultaneously. e) Release POWER after 5 sec. while keeping M1 and CH19 pressed down: ''codE'' flashes in the display for 5 seconds and the station will start Display-Test. Push M1 to stop test. -------------------------------------------------------------------------------- Adjustment VR 205 Adjust for 30 Watt AM in international mode VR 206 Adjust for 30 Watt FM in international mode VR 210 Adjust for 4 Watt FM in CEPT mode VR 601 Adjust Ecco VR 212 Adjust FM-Deviation (FM-Modulation) VR 207 Adjust AM-Modulation VR 208 Adjust SSB-Modulation VR 3 Adjust S-Meter for SSB VR 4 Adjust S-meter for FM/AM VR 213 Adjust Modulation Meter VR 204 Adjust RF-meter (Power output)
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Mrsandman
Member Username: Mrsandman
Post Number: 83 Registered: 1-2002
| Posted on Thursday, November 03, 2005 - 7:38 am: |
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TRANSMITTER PORTION Test equipment required: Power Supply: 13,2 V DC Current Meter Oscilloscope RF Power meter RF VTVM AF Oscillator FM Linear Detector Dummy Load (50 ohm) AF VTVM Preparation alignment: VR208 Clockwise VR205 and VR 206 Middle position VR207, VR201, VR202, and VR 203 Counterclockwise Mic gain Clockwise Meter SW RF SWR/CAL Volume Middle position RF Power Clockwise Test frequency 27.185 MHz Step Condition Adjustment Procedure 1 LSB 27.185 MHz No Mod. VR203 Remove the PB201 Connect a DC current meter to TP202 (+) and TP203 (-) Adjust for 330 mA 2 Same as Step 1 VR201 Connect a DC current meter to TP202 (+) and TP201 (-) Adjust for 85 mA 3 Same as Step 1 VR202 Connect a DC current meter to TP202 (+) and TP201 (-) Adjust for 170 mA 4 LSB 27.185 MHz Two-Tone 400 Hz and 2.500 Hz 1 mV Mod. L221 Re-install the PB201 Adjust for maximum on the RF VTVM Set the AF-oscillator, so that the output is less than 32 V 5 LSB 27.185 MHz Two-Tone 400 Hz and 2.500 Hz 30 mV Mod. VR208 Adjust for 25 V on the RF VTVM 6 SSB 27.185 MHz No Mod. VR209 Adjust the carrier leakade at LSB and USB become minimum and almost equal 7 AM 27.185 MHz No Mod. VR205 Adjust for 3.9 Watt on the WattMeter 8 AM 27.185 MHz No Mod. VR204 Adjust for RF Meter at "9" just light on 9 AM 27.185 MHz 1 kHz 30 mV Mod. VR207 Adjust 90% negative 10 AM 27.185 MHz 1 kHz 3 mV Mod. VR213 Adjust for Modulation Meter at "9" just light on 11 FM 27.185 MHz No Mod. VR206 Adjust for 3,9 Watt on the WattMeter 12 FM 27.185 MHz 1 kHz 30 mV Mod. VR212 Adjust for +/- 1.9 kHz Deviation ONLY FOR "INTERNATIONAL" CONFIGURATION WITH 30 WATT IN INTERNATIONAL MODE AND 4 WATT IN CEPT MODE Step Condition Adjustment Procedure 11 AM 27.185 MHz No Mod. VR205 Adjust for 30 Watt on the WattMeter 11 FM 27.185 MHz No Mod. VR206 Adjust for 30 Watt on the WattMeter 11 AM 27.185 MHz No Mod. VR210 Adjust for 3,9 Watt on the WattMeter 11 FM 27.185 MHz No Mod. R233 Replase R233 with 5k pot. Adjust for 3,9 Watt on the WattMeter
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Mrsandman
Member Username: Mrsandman
Post Number: 84 Registered: 1-2002
| Posted on Thursday, November 03, 2005 - 7:41 am: |
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hope this stuff helps let me know how it works out i always wanted one the only radio i never bought i have hr2600chipped if the george is 1/2 the radio i think it is the radio will rock!!!! |
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