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RadioFans.CN 收音机爱 好者资料库
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RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库
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For units set up for 240 volts, a 50 ohm-10W resistor is inserted in line with the incoming mains power. CAUTION: Dangerous voltages are present inside the TF-10. Servicing should only be attempte
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The 6LF6 output tubes have become extremely expensive and hard to find. The Svetlana EL509 is similar in characteristics, and with a substantial amount of work the EA-2100 can be changed to take
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Dangerous voltages are present in the EA-230. Repairs and biasing should not be attempted by those not familiar with servicing equipment containing high voltages. Failure-prone parts, order to che
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The failure prone parts in the TF-12 are the optical encoder volume control, 1Meg resistor in the mute time out (located on the power supply board), the HER602 diodes in the power supply, 470 F c
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The failure prone parts in the EA-2101 are the four 150K resistors in the feedback sensing. Early versions used carbon film resistors that tended to increase in value, or go open completely, caus
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RadioFans.CN 收音机爱 好者资料库RadioFans.CN 收音机爱 好者资料库
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The failure prone parts in the TF12 are the optical encoder volume control, 1Meg resistor in the mute time out located
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The failure prone parts in the EA2101 are the four 150K resistors in the feedback sensing. Early versions used carbon f
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