Durable Single Output Audio Transformer 5W 5V for Tube Amplifier 6P1 6P14 MV | eBay
5W SE Style 4/8 Ohm Output Transformer APD-8030M – Amp Parts Direct
Quality 5.5k 5w Output Transformer Opt For Tube Amplifier 6v6 6v6g El84 Se Single Ended Class A Tube Valve Amplifier Amp - Home Theater Amplifiers - AliExpress
5k / 5.5k: 32ω Amorphous C-type Iron Core Single-ended Output Transformer, Power About 5w, Working Current 50ma - Transformers - AliExpress