5V4G, MULLARD, BLACK BASE, 5G1 B9I, SEPTEMBER 1959 BLACKBURN PRODUCTION
5V4G, MULLARD, BLACK BASE, 5G1 B9I, SEPTEMBER 1959 BLACKBURN PRODUCTION
On offer we have a Mullard 5V4G rectifier valve. The classic ST envelope is tight to the black micanol base which shows smudged white print. The device tests as 100% emissive for each diode section using our AVO VCM 163.