Getting a nice boost from the stock speaker (MON level 2) at my preferred pitch of 500Hz. Booster is a 12-3/4 inch piece of 1-1/4" PVC tube (1-5/8"OD) with one end cut at 30 deg. Placed approx. 1/8 inch from the speaker holes gives the best gain. Tube would be slightlyshorter for higher pitch tone. Easy to find the peak by swinging the pitch tone. A slider sleeveon the end allows adjusting to desired pitch. For CW ops it is really nice having the additionalaudio boost at your preferred pitch. I pass this on FYI to those who may like to try it themselves. 73, Mike AC5P
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