All tubes have very low hours, some with essentially none.
(1) 1942 RCA VT-229 (6SL7GT) from Upscale Audio, $50
(1) 1950's Tung-Sol 6188 (6SU7WGT) $50
(1) CBS-Hytron 5692 (6SN7GTB) from Upscale Audio - SOLD
(2) Siemens E81CC - SOLD
(2) 1957 GE JG 5751WA triple mica, black plates - SOLD