Can any of you tech,s tell me who made the lark base amp? the only thing i have on it is the big letters in the middle of it.....LARK...it only has 1 tube in it GE #8714.it has ssb switch,standby,hi-lo,& power switch.........nothing else.no #,s don,t know who made it ........don,t have any pics to show,,,,,,,,sorry.......i wish i could get schem....for it ......maybe a modulater or small driver.don,t know. thanks for your time......or any help