delco usa are high quality premium vintage sound reproduction w/ a thick getter flashing
these delco usa tubes are also amplitrex tested for unparalleled accuracy, w/ the best fixed bais!
(be cautious of auto-bias sellers as its not a true data sheet test of a tube)
1 x old stock 6v6-gt delco usa power preamp audio tube, several available
give 100+ session hours w/ your specific amps voltage to fully cure / break-in
ships fast worldwide well packed w/ free economy postage!
authentic vintage hifidelity audio / preamp / mic / power tube curation by caliacoustics ~
see our official web site for new arrivals, reserve/request options
+ true-nos sealed box rarities + limited run special editions