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Ok this will probably sound like a stupid question, but how do you change the diaphragms (from corrugated to flat or vice versa) on the WA Harvey DLX? There's no rubber rim like with the Harvey Elite/Littmann Cardio III's, and I'm having trouble figuring out how to take one out and put another one in. I was trying to be gentle with it so I don't break it.
Hopefully someone can help me out in this momentary lapse of cunning.
Hopefully someone can help me out in this momentary lapse of cunning.