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Customer Reviews for the MFJ-564B.

From: Kevin Vermeer WWJD
These are nice looking and have a light precision touch. If you are on a tight budget, this is a good choice It costs about half the money as other paddles that basically work the same way. Sincerely,
Kevin WWJD

From: stan speck ke0fmj
This is a great iambic keyer. I put red locktite on the screw-back spacer adjustments. I put allen head bolts on the front spacer pinches but had to grind a bit off diameter of the allen heads, and then I put small nuts on the bolts that were long enough to protrude past the pinch block post. I got the parts at my local hardware store, one block away for about a dollar., stan

From: Eric Prescott W3EDP
Can be adjusted for light touch but adjustment changes after 5-10 minutes of sending. As mentioned in another post the rear spacer adjustment backs out as you send. I will be using locktite to keep it in place. The two front post adjustments also back out as it's used. The lock screws meant to tighten them down were already as tight as they would go when it arrived from the factory, so limited options there.

It may be a good starting key except for the adjustment problems which keep you adjusting the key rather then practicing.



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