An offer to prepay another $100 to cover any future damage was turned down, he said.
Williams, an independent from Elizabethton, threw the microphone in anger when he wasn't allowed to explain his reasons for opposing a bill to allow supermarket wine sales in Tennessee after the chamber passed the bill Thursday.
House Clerk Joe McCord announced at the end of Monday night's floor session that the chamber's policies require members to replace or repair any damaged property. For example, former Rep. Julia Hurley was required to pay for her desk to be refinished in 2011 after she carved her initials into it.
Williams was House speaker from 2009 to 2011. He is retiring from the Legislature this year and running for Carter County mayor.
He said Tuesday that he was surprised the microphone broke. The House said there were several options for replacing the microphone, ranging from $89 to $135.
"I said, 'Let me pay you for two,' and they wouldn't let me," he said.
McCord laughed off Williams' offer to "keep one in reserve."
"We operated strictly on a pay-as-you-go basis," McCord said.