801A Direct Heated Single Ended Triode Amplifier
"Initial impressions - clean tops and mids, and the lows are nice and tight. J&K audio xformers give this tight sound to the lows."
Direct link below:
Link to the output transformers used:
Primary DCR: 570Ω（B-P，12℃）
Max primary current: 50mA (recommended >= 30mA)
J&K Audio Design