Hashimoto 7W SE Output Transformers 5K / 7K Photo #866012 - Canuck Audio Mart
Sneak Peek of the Upcoming Positive Feedback Article 'The Triode Lab 45 EVO Single-Ended-Triode Integrated Amplifier: The Evolution of the First Watt!' - Jeff's Place
Hashimoto HC-203U Output Transformer 20W Single 2.5K,3.5K/16,8,4 for 300B etc. | eBay