A few questions - - I am not sure if I have the correct manual, if you or someone want to send one to me, I can process it. - Are you able to access Google Documents?
Below is an example of what I can have generated with very little effort. If it looks good to you, I can send them all to you via google docs or in a big email. This document contains text automatically extracted from a PDF or image file. Formatting may have been lost and not all text may have been recognized. To remove this note, right-click and select "Delete table". DRAKE less the switch is depressed. This function must be defeated or VOX operation will be impossible. 2-6. GROUND REOUI REMENTS. For best results, the T-4XC should be attached to a good earth ground through as short and as heavy a piece of ground braid as possible. A binding post is provided on the rear of the chassis for this pur- pose (see ñgure 2-2). 2-7. RECEIVER MUTING. The RCVR MUTE jack provides a short circuit to ground on receive, and an open circuit on transmit. This jack can be connected directly to the Mute jack on the R-4A, R-4B or R-4C`Receiver with one of the cables provided. 2-8. RECEIVER ANTENNA SWITCHING. The T-4XC contains built-in receiver antenna switching. Simply connect one of the coax cables provided from the RCVR ANT jack on the rear of the T-4XC chassis to the receiver antenna terminals. 2-9. ANTI VOX AND SIDETONE. The Anti Vox input and CW sidetone output utilizes the ANTI VOX jack on the rear of the T-4XC chassis for connecting to the receiver and speaker. The impedance at this point is approxi¿ mately 5000 Ohms. To connect to the R-4, R-4A, R-4B or R-4C Receiver, simply couple the ANTI VOX jack to the ANTI VOX jack on the rear of the receiver chassis with one of the cables provided. If the R-4, R-4A, R-4B or R-4C is not used, it will be necessary to use a 5000 Ohm to 4 Ohm audio output transformer between the ANTI VOX jack and the speaker terminal of the receiver. The high impedance winding of the transformer should be connected to the ANTI VOX jack and the low impedance winding should be connected to the receiver speaker terminals in parallel with the speaker. An alternate connection for this jack would be to the plate of the receiver audio output tube. A DC blocking capacitor must be provided in the receiver. 2-10. INJECTION. Refer to figure 2-4. In order to transceive with the R-4, R-4A, R-4B or R-4C Receiver, run a cable from the INI jack on the rear of the T-4XC chassis to the INJ jack on the top of the R-4 or on the back of the R-4A, R-4B or R-4C chassis. This cable will provide both RF and control voltage. Be sure to use one of the low capacity injection cables for this connection. 2-11. R-4C CARRIER OSCILLATOR INJECTION. The 5.645 MHZ oscillator injection in the R-4C can be supplied from the T-4XC by connecting a cable between the Carrier Oscillator jacks of the two units. This phaselocks the two units to the same frequency on SSB when the TRANSCEIVE switch is in the Receive or Transmit position. No connec- tion is made to this jack when using the R-4, R-4A or R-4B. Be sure to use one of the low capacity injection cables for this connection. 2-12. R-4C PTO LAMP SWITCHING. Refer to figure 2-4. The Permeability Tuned Oscil- lator (PTO) pilot light in the R-4C is controlled by the TRANSCEIVE switch in the T-4XC when a cable is connected between the PTO lamp jacks on the two units. When this connection is made, the receiver PTO lamp will be on when the re- ceiver PTO is controlling the frequency on receive and transmit. The transmitter PTO lamp will be on when the transmitter PTO is controlling frequency in both receive and transmit and both PTO lamps will light when independent frequency control is used. No connection is made to the PTO lamp jack when using the R-4, R-4A or R-4B. 2-13. USING THE T-4XC WITH R-4 RECEIVER. When the T-4XC is used with the R-4 Receiver, one change must be made in the R-4 for proper transceive operation. Change R71, a 150 K resistor, (from pin 1 of the 6AU6 VFO tube V11), to a 330 K. This will not affect the operation of the receiver in any other way. NOTE: This does not apply to R-4A, R-4B or R-4C Receivers. ________________ RING SHIELD TIP Figure 2-7. Microphone Connect/ons 2-14. USING THE T-4XC WITH SPR-4 RECEIVER. When the is used with the SPR~4 Receiver with a TA-4 Transceive Adapter board installed, two resistors must be added to the Add an 8.2 K resistor from the 12 volt B+ line to the POW MUTE jack. Add a 2.2 meg resistor on the back of the TA-4 board in parallel with R3, a 1 meg resistor. 2-15. LINEAR AMPLIFIER CONNECTION. In order to use your T-4XC with a linear ampli- fier, connect as illustrated in figure 2-5. Note that if the linear amplifier has negative-going trans- mitting AGC voltage available, it can be connected to pin 3 of the power connector, connection available at jack on AC-4, to prevent the linear from being overdriven by the T-4XC. For con- nections to the Drake L-4 or L--4B Linear Amplifier, see the L-4 or L-4B instruction manual. STATION C6 ADJUST „ROUND SPARE FOR VHF MOD KIT Figure 2-2. Rear Chassis Con tro/s On Sun, Dec 12, 2010 at 6:58 PM, Kevin Nathan <[email protected]> wrote: > Hi All, > > Does anyone have a manual for the T4X-C in electronic format that isn't a > scanned image? I am totally blind and cannot read the .PDF files when they > are just an image that has been scanned. I am planning to buy a T4X-C and > would like to begin reading up on it. If you have such a critter, please > send me a copy. > > Also, can someone please tell me what I need for cables to interconnect the > T4X-C and the R4C? > > Thanks much and very 73. > > > Kevin :) > Amateur Radio: K7RX > > > > _______________________________________________ > Drakelist mailing list > [email protected] > http://mailman.zerobeat.net/mailman/listinfo/drakelist > >
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