1967 Tektronix Type O Plug-In Operational Amplifier 8 Tubes! For Tektronix 547
As pictured untested shows signs of use but still in good shape complete all parts, tubes and knobs. All knobs turn as they should and click through all their positions as they should. Stored inside my heated home for many many years. Please message through eBay with any questions before bidding. I believe this is a plug in for a Tektronix Oscilloscope type 547 that I used to have. I gave the scope away but still have the plug in. It may fit other models of those huge scopes as well in the 500 series. Please make sure it fits your scope before buying. All sales final no returns. Shipping from BC Canada. No tariff on this because it’s made in USA.