2× Tab Telefunken V76/80 Mic Preamps. Serial 6050 and 6053 Very Close! This item was not tested. It seems the circuit is good condition. I think these gear will work well by easy work.
You can get real v76 sound at lower price. The item "2× Tab Telefunken V76/80 Microphone Preamplifier" is in sale since Thursday, February 18, 2021. This item is in the category "Musical Instruments & Gear\Pro Audio Equipment\Preamps & Channel Strips".
The seller is "knockmic" and is located in kyouto-city. This item can be shipped to North, South, or Latin America, all countries in Europe, all countries in continental Asia, Australia.