Shuguang EL34×4 ( 6CA7). Rated output power: 15W + 15W (RMS triode working condition). Tube: Shuguang 12AX7×2 (they can be replaced by 12AX7EH,ECC83, E83CC,CV4004,ECC803,5751). Use 2X12AX7 and 2X12AU7 as pre-amp tube, use 4XEL34 as push pull power amp,providing the triode connnection and ultra-linear connection modes.
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