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Author Topic: yaesu 2100b linear  (Read 1700 times)
G4REK
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Posts: 1




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« on: October 22, 2006, 03:21:26 AM »

Hi,
  does anyone have any info on using a solid state rig with a 2100b amp, even a proven circuit diagram would be most useful...

                   thanks jim g4rek........
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KD5KI
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« Reply #1 on: October 23, 2006, 08:10:27 AM »

To use my FL-2100b with the FT-100D (and now the FT-ONE), I simply built a small box containing a Radio Shack 9 volt relay and a 9 volt battery. You can buy ready made "cables" for this, but this more simple (read less expensive) solution works just great for me. (I do not use the ALC link as I keep the drive somewhat lowered. Others may give you some input for that part of the connections.)
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G4REK
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« Reply #2 on: October 24, 2006, 01:01:03 AM »

  Okay thanks for the info, there isnt any relay contacts in modern radio's these days that i could use to ground the contacts on the 2100b amp, so i will put together something.
               
                       Jim  g4rek..........
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« Reply #3 on: October 25, 2006, 03:54:51 PM »

I used a rectifier diode / capacitor off of the 13V transformer winding to give +20V DC ish. I used a resistor and zener to limit the volts and then switched the old keying circuit via a 12V relay. All this is internal. I took the new 'ground to operate' to the rear terminal so it could interface with a modern rig, fine with my IC735 and O2. No external boxes.

K6KY
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VK2YDD
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« Reply #4 on: December 16, 2006, 11:50:42 PM »

Hi Jim

I use a IC706mk2g with a fl2100z. I just used a small 5volt relay from the ACC socket of the rig to switch to Amplifier.

Cheers Dom VK2YDD
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