My mother-in-law spilled something on the handset of her CrystalTone
amplified telephone, and the outgoing volume level is now pathetic;
i.e., the people she calls can hardly hear her, even with the "boost"
button pressed.
The mic element looks pretty much the same as the electret ones sold by
Radio Shack, but I cannot detect a sufficient polarizing voltage for an
electret -- just 0.7V.
The only two mic elements RS lists are electret, and I have been unable
to track down any mic elements of a similar size that are not electret.
Any ideas?
Perce
