2-A, Reason for AC plug?
The 2a\'s are my favorite speakers. I think they sound great, no bass but fine with a sub. But I really only notice a slight difference in brightness when they are plugged in (on both). Does anyone know the reason for the ac plug?
I recently salvaged a pair of 2a\'s from a thrift store. I found they functioned but did not produce the crisp response others wrote about. (woofers we shot as well and had to be replaced) Upon inspection I found 2 resistors had evidence of overheating (6 & 25 ohm) on the circuit boards and the resistance had changed as a result. I could not find \"exact\" replacements, but got something close from RS. After replacing them, I was amazed at the improvement. I also found that the potentiometers were oxidized and restricted full range adjustment. This produced the same effect of not being powered up. Once corrected it made a huge difference. If you find either of these conditions you may not be hearing the full potential of the stats. One other possiblilty is that the circuit holds a charge in the capacitors and will perform well for a period of time as they discharge. If you have short periods of running without power, you may not notice a difference. After repairing and upgrading the woofers, they are now among my favorites!
I recently purchased a pair of Realistic Electrostat 2a speakers for $9.99 plus tax. The tweeters are not working at all. Two problems. One trace of the main circuit board is so corroded, that a jumper must be installed. The smaller resistor is blackened.
Can you please provide the ohm values of the small resistor and the large resistor, as I will replace both.
The cabinets are in fair to good condition. They look even better now with a few applicaitons of Old English lemon oil.
The resistors are 6 ohm and 25 ohm. RS did not have exact match, but pretty got close and they work fine.