C CTM1 Private Full Member Minuteman Oct 7, 2011 170 88 56 Dec 29, 2019 #1 Dec 29, 2019 #1 Wondering if there were tube upgrades from when OSTI first started until now (excluding WP) and if so are they really that big of a deal. Any issues with the older ones to be on the watch for. Thanks.
Wondering if there were tube upgrades from when OSTI first started until now (excluding WP) and if so are they really that big of a deal. Any issues with the older ones to be on the watch for. Thanks.
