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Message |
    
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
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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.
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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.
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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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