see 2 pcs 6П14П Vacuum Tube Amplifier Class A Ultra Linear Schematic SE PCB
https://www.ebay.com/itm/145442680148
Tested, working condition , made in late 60s
Input voltage AC 220 or AC 127 volts
Output anode 265 volts for the final stage and 235 volts for the preamplifier
Output for glow 2x 6P14P-K
Output for glow 2x 6N2P-V
Dimension 90 x 260 x 160 mm (WxDxH)
Weight 2,7 kg
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Transformer parameters in the table
Тr1 supply
1-2 160 ПЭЛ 0,41 УШ26Х28
2-3 435 ПЭЛ 0,35
4-5 435 ПЭЛ 0,35
7-8 1200 ПЭЛ 0,23
9-10 34 ПЭЛ 0,8
11-12 16 ПЭЛ 0,51
12-13 16 ПЭЛ 0,51