Tube Amplifier Output Transformer 40W Pull-Push Z11 Silicon Steel EI For Pull-push Tube Amplifier Power Audio HIFI DIY - buy at the price of $45.90 in aliexpress.com | imall.com
5K 5W Single Ended Output Transformer for 6P1 6P14 6P6 0 4 8 Ohm DIY Vacuum Tube Amplifier|Replacement Parts & Accessories| - AliExpress