For decades, the Palomar Amateur Radio Club has kept a bank of thousands of vacuum tubes, available to hams and restorers for a reasonable donation to the club.
Have surplus tubes and don’t know what to do with them? Deposit them in the PARC tube bank. Your donation is tax-deductible, and the tubes go to someone keeping a radio alive.
To ask which tubes are available, or to make a withdrawal or deposit, email the board at board@palomararc.org and we’ll pass your request to the tube bank curator.