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Author Topic: IC-7200 Days Are Numbered  (Read 7052 times)

WL7PM

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RE: IC-7200 Days Are Numbered
« Reply #15 on: January 09, 2019, 10:16:56 AM »

What  semiconductor  does IC-7200 use for final PA ?
 Stocking a set of   finals  is probably a good idea.
 What other critical spares might a remote operator  want to keep on hand ?
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WW5F

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RE: IC-7200 Days Are Numbered
« Reply #16 on: January 10, 2019, 06:35:55 AM »

I have an active IC-7200 in a "go-box" and I have some spares, also.  Three of them to be precise.  I wonder how fast the price will rise on a NIB IC-7200 after they quit production.
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N8YX

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RE: IC-7200 Days Are Numbered
« Reply #17 on: January 10, 2019, 10:52:40 AM »

My go-to rigs for FD or emergency use have been along the lines of Cubic's Astro-D suitcase setup, a TS-440SAT/R-5000 pair or an IC-745/R-70/AH-2 combo. An IC-7200/R-75/AH-4 might be  next in the queue. I do like the other Icoms a lot.
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WL7PM

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RE: IC-7200 Days Are Numbered
« Reply #18 on: January 19, 2019, 12:54:44 PM »

I see that  RF Parts  has in stock  Mitsubishi RD100HHF  Silicon MOSFET, 30 MHtz, 100Watt 12.5 Volt, as  listed in the 2009 IC7200 schematic..

 Does anyone here know for certain  if the   current production  IC7200 is still using this same final PA device ?
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WL7PM

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RE: IC-7200 Days Are Numbered
« Reply #19 on: February 13, 2019, 05:00:04 PM »

 2014 production IC-7200  are equipped with  PA Final: Mitsubishi  RD100HHF1C  ( x2)
    Driver: Mitsubishi RD15HVF1   (pair)..

 RFParts carries both devices, but state that the 15 watt driver  is obsolete, Mitsubishi  ceased production late 2017
.
  If you plan to keep an IC7200  in operation, you may wish to  stock a pair of each.
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K6AER

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RE: IC-7200 Days Are Numbered
« Reply #20 on: February 25, 2019, 02:28:43 PM »

The VSWR fold back on the 7200 is pretty aggressive. I do not think the finals or drivers are in much danger. Mechanical items such as switches, touch pad and rotary encoders might be a much bigger issue. The radio has been out for over ten years and very few issues have come to light.
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WL7PM

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RE: IC-7200 Days Are Numbered
« Reply #21 on: August 30, 2019, 03:00:10 PM »

Has anyone  looked at the  output keying waveform on  IC-7200 and determined whether or not the model is plagued by ALC overshoot,  with mometary  full power  spike on key-up ?
 I don't have   equipment to measure such event, but  it has been noted that modern  ICOM transceivers  are prone.
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KD7YVV

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RE: IC-7200 Days Are Numbered
« Reply #22 on: September 12, 2019, 11:34:26 AM »

I still have a Kenwood TS-430. I've had it fixed once.
It's still going. While a lot of the newer radios are nice,
there's something to be said for the older models.
It's sad when production stops on one but technology marches on.
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