Archive for the ‘Station’ Category

43′ Vertical Final Install Pictures

I received an email from a follower that had questions about my final configuration of the matching network for my 43′ vertical.  I promised him I would take some pictures of it the next time I was up at the Ranch, so I did that yesterday. A couple of them are a little blurry, but […]

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Thunderbird Hamfest 2019

One of my favorite hamfest did not disappoint me this year. I always find good bargains on tools and equipment at this hamfest. My first purchase was an MFJ-267 1KW Dummy Load/Wattmeter.  The seller had all of his equipment priced at the exact same point – $68.00.  That seemed a good enough price that I […]

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TS-430 Control Board: IC-1 Waveforms

IC-1 is the main processor chip on the Control Board of the TS-430.  It is a uPD8049c.  This 40 pin chip runs at 5.74 Mhz, and interfaces with virtually every control integrated circuit (IC-2 through IC-6) on the board.  You can see that it is central to the radio’s operation.

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TS-430 Control Board: IC-3 Waveforms

IC-3 on the control board is an I/O expander chip.  It is a uPD8243c.  This chip is directly compatible with the 8049 processor, and uses instructions received from the processor on pins 8-11 to control 4 output ports. These 4 ports control the PLL Oscillators, and interface with the two data selector chips (IC-4 and […]

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TS-430 Control Board: IC-2 Waveforms

IC-2 on the control board in an I/O expander chip.  It is a uPD8243c.  This chip is directly compatible with the 8049 processor, and uses instructions received from the processor on pins 8-11 to control 4 output ports. These 4 ports drive the multi-digit florescent display unit.

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