(!!) (Recommended Pair) 0B3 Sylvania NOS 1952 and 1963 same build
$ 11.99
1 pair) 0B3 Sylvania NOS same build
1) Sylvania branded GE 1963
1) Sylvania 1952
- ARGON GAS
- TUBES PLUGGED INTO OCTAL SOCKETS IN PHOTO
(OB3=voltage regulator; 90V @ 5-40ma) (argon gas)
- Decware Torii MKIV
See more: vacuum tube
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 (Recommended Pair) 0B3 Sylvania NOS 1952 and 1963 same build&Category=vacuum tube&ImageURL=http://cdn.shopify.com/s/files/1/0333/7633/products/1_37a6ec97-1b98-4ddf-a979-74047b7bce76.jpg?v=1600896899){kind=link}
 (Recommended Pair) 0B3 Sylvania NOS 1952 and 1963 same build "Pin It")