This Skytec Tubester set for the Collins 32S-3 / 32S-3A, is in excellent condition.
The Tubster sets are a Collector item and very hard to find especially new ones.
This set is missing the ST-306 for V6 the rest are there needed for the 32S-3 and 32S-3A
They will replace most of the tubes and according to the literature, will increase performance.
I am selling them as is as described.
The information sheets are included and they are a breeze to install.