View and Download President HR owner’s manual online. 10 Meter Amateur Transceiver. HR Transceiver pdf manual download. Also for: Hr View and Download PRESIDENT HR user manual online. 10 Meter Amateur Mobile Transceiver. HR Transceiver pdf manual download. PRESIDENT LINCOLN (HR ) MODS by Roger Perales ~ perales Conversion of this text from html format to PDF by Frank TomeŇ°.

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So if you double your output, you will see half an S-unit on the other end. Loosen them all the way before they come completely out. Connect the oscilloscope to TP1.

It just so happened that I lived two blocks from a grain elevator at the time, and the truckers waiting to offload their grain liked to sit on CB and yak. Manhal paralleled C and C each with a high-quality computer grade. If you need any help with the files, let me know. This mod was originally written by M.

You will find 2 resistors, one on pin 4 and the other on pin 5. Seems kind of silly. You must use a 1N diode, because a 1N will not handle the current on TX. These components are located to the left facing the front of the radio of IC During this step, set the AF oscillator so that the output is manuwl than 20V.


I always wondered why, when we have a radio that tunes in Hz increments on the main dial, everyone seems fascinated with having KHz of ‘slide’ on the RIT control. I can send the pages to you via E-mail if you wish.

Connect a Frequency counter to TP Did you ever wonder what those 2 extra adjustment pots on the synthesizer board are? Component location diagram 19 Adding an external meter to the HR To add a needle type meter all you need to do is connect it to C on the Microprocessor. My had this mod in it when I got it.

President HR2510 Owner’s Manual

Q is located near the front of the circuit board in the center to the left of ICabove C Hr22510 adjust them, hhr2510 need a good scope with at least 60 MHz bandwidth MHz would be better. Repeat using TP and VR Rogerbird has a good mod on his web site to increase the overall gain of the audio stages, but I didn’t think this was my problem. The new transistor has a different pin out from the original.

Please send me your web page address when you get it finished, and I’ll put it on my site as well. Connect the Orange wire, cut from J, to the Grey wire Brown in the Lincoln on the back of the rotary switch.


This reduces the overall tuning range of the RIT quite a bit, and makes fine tuning a lot less touchy. Lincoln mods homepage Date sent: That extra couple of watts will never make it to the guy on the other end, but it will sure tick off your neighbors.

It uses all the existing switches and buttons. To modify this, locate R96 a 2. I then removed the stock lamp and suspended a pair of 12v micro-lamps from Radio Shack through two of the holes in the top. Replace Q with an MRF Put a ohm resistor in the vacant hole and solder to the board.

Connect the scope to TP, and adjust VR for the cleanest sine wave. Connect a watt meter and a dummy load to the antenna jack.

HR Manual | Copper Electronics

Locate the 3 tuning coils on the front left corner of the main PCB. If it is not soft enough to peel off, you can use a W hair dryer to heat the epoxy enough to remove it. You get memories, repeater splits, and 12 Meters too! Rogerbird has several listed on his page.