* "Strong dollar" pledge from US keeps dollar supported
* Tech sector drags on Asia stocks after Apple results
* LME copper edges up to highest since July 2008
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By Kevin Plumberg
HONG KONG, Oct 19 (Reuters) - The U.S. dollar was steady on Tuesday, supported by a pledge from Washington not to devalue its way to recovery, while weakness in the technology sector kept Asian stocks struggling to maintain small gains.
U.S. Treasury Secretary Timothy Geithner affirmed the government's desire for a strong dollar for the first time since February, providing a reason for dealers to take profits on other currencies' strength in the run up to weekend meetings of G20 finance ministers. [
]However, deep-seated concerns remained among global policymakers that the Federal Reserve's path to quantitative easing will keep the dollar weak and maintain sharp upward pressure on the currencies of other economies, especially in the emerging markets.
That means the popular trade of selling dollars to buy emerging market equities and commodities is still in play.
"The reasons for the dollar being weaker, principally that move towards QE, are still very valid, so any pullbacks are not going to be enormous," said Gregg Gibbs, currency strategist with Royal Bank of Scotland in Sydney.
The euro was at $1.3935 <EUR=>, down slightly from late in New York on Monday. The euro has been unable to maintain a foothold above $1.40 in October, which may cause frustrated traders to turn tail and sell it off to $1.3775 over the next few days.
The U.S. dollar index, which measures performance against a basket of six other major currencies, was up 0.1 percent <=USD>, though still not far from a 2010 low hit last Friday.
STOCK EXCHANGES REFLECT MIXED SENTIMENT
Stock exchanges in Asia reflected mixed sentiment, with gains in Japan and Australia and declines in tech-heavy South Korea and Taiwan.
Japan's Nikkei share average rose 0.5 percent <
>, extending a gain since September to 6.9 percent, which was below the 9.7 percent returns from the U.S. S&P 500 index <.SPX> but above the 3.1 percent from the FTSEurofirst 300 index < >.The MSCI index of Asia Pacific stocks outside Japan <.MIAPJ0000PUS> was largely unchanged on the day, with weakness in the technology sector offset by some gains in other segments.
Tech was under pressure after Apple Inc <AAPL.O> posted disappointing sales of its iPad tablet computer, drawing a pointed response from the company's chief executive Steve Jobs, who lashed out at competitors. [
]With the dollar at bay, gold also was under wraps, holding at $1,369.45 an ounce <XAU=>, well below the all-time high of $1,387.10 an ounce hit last Thursday.
Gold is still in a bullish trend but in the near term risks a profit-taking driven pullback to $1.361 an ounce.
Copper traders were not waiting for the dollar down-trend to resume before pushing up the base metal higher. Three-month copper traded on the London Metal Exchange rose 0.4 percent on the day to $8,492 a tonne, the highest since July 2008. (Additional reporting by Charlotte Cooper in TOKYO, Reuters FX Analyst Krishna Kumar in SYDNEY and Reuters Market Analyst Wang Tao in SINGAPORE; Editing by Ron Popeski)