Hoffman Amplifiers Tube Amplifier Forum
Other Stuff => Other Topics => Topic started by: mackie2 on July 08, 2009, 10:50:08 pm
Title:
Variable Tuning Fork
Post by:
mackie2
on
July 08, 2009, 10:50:08 pm
adjustable tuning fork
Tuned to "C"
Mackie2/