Circlotron Tube Amplifiers

• Circlotron Amp 40 W with 2 x EL 34, ECC 81, ECC 83
• Circlotron Amp 50 W with 2 x KT 88, ECC 81, ECC 83
• Circlotron Amp 140 W with 4 x KT 88, ECC 81, ECC 83
• Circlotron Amp 140 W with 6 x E 34 L, ECC 81, ECC 83
• Circlotron Amp 220 W with 6 x KT 88, ECC 81, ECC 83

Circlotron Amp 40 W with 2 x EL 34, ECC 81, ECC 83

To use with output transformer AP-234, power transformer NTR-P\6, power supply EE-280, inrush current limiter EE-249 A

PC-Board Size: 150 mm x 160 mm 









BS = Kit
PL = PC-Board

Circlotron Amp 50 W with 2 x KT 88, ECC 81, ECC 83

To use with output transformer AP-234, power transformer NTR-P{7 C Z, power supply EE-280, inrush current limiter EE-249 A

PC-Board Size: 150 mm x 160 mm 

BS = Kit
PL = PC-Board

Circlotron Amp 140 W with 4 x KT 88, ECC 81, ECC 83

To use with output transformer AP-634/2, power transformer NTR-P\2 C, power supply PPP-NT, inrush current limiter EE-249 A

PC-Board Size: 150 mm x 250 mm









BS = Kit
PL = PC-Board

Circlotron Amp 140 W with 6 x E 34 L, ECC 81, ECC 83

To use with output transformer AP-634/2, power transformer NTR-P\2 C, power supply PPP-NT, inrush current limiter EE-249 A

PC-Board Size: 150 mm x 250 mm









BS = Kit
PL = PC-Board

Circlotron Amp 220 W with 6 x KT 88, ECC 81, ECC 83

Input transformer E-1220 is included, to use with output transformer AP-665, power transformer NTR-P\4, power supply EE-229,
inrush current limiter EE-249 A

PC-Board Size: 145 mm x 311mm








BS = Kit
PL = PC-Board