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TimG

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LOMO YP-27 PREAMPLIFIER

(ENGLISH PINOUT)
UP-27.
Born 2 inputs, 1output. There are mods for 2 channels out.
3PCS 6G32P [analogue of EF86] and 1PCS 6N3P [ECC85 / 6L12]. Main technical characteristics: 40-14000 Hz / Sensitivity 0.2 mV / 0775 V. Output. - according to a guy selling one.
LOMO UP-27 Schem.jpeg
 
LOMO YP-27 PREAMPLIFIER

(ENGLISH PINOUT)
UP-27.
Born 2 inputs, 1output. There are mods for 2 channels out.
3PCS 6G32P [analogue of EF86] and 1PCS 6N3P [ECC85 / 6L12]. Main technical characteristics: 40-14000 Hz / Sensitivity 0.2 mV / 0775 V. Output. - according to a guy selling one.
View attachment 87512
 

Attachments

  • Lomo schematic UP27.jpeg
    Lomo schematic UP27.jpeg
    203.6 KB · Views: 33
LOMO KINAP YP-21 / UP-21

3 tubes give up to 75 dB gain, tubes are: 6Ф1П (6BL8,ECF80), 6H3П (2С51,5670,6СС42)
Preamp has 1:15 double-shielded permalloy (mu-metal) input transformer.
More audiophile?

Specification:
Nominal output level with 600 Ohm load - 1,55V
Maximum gain at 1000 Hz - 75 (+-2) dB
Frequency range - 30-16000 Hz
Total harmonic distortion before 6dB overload - 0,5%
Tubes - 6F1P(6Ф1П), 6N3P (6Н3П)- 2 pcs
Anode power - 280V +-2% (15mA)
Heater - 6,3V (1,2 A)
 

Attachments

  • LomoUp-21Schematic.jpeg
    LomoUp-21Schematic.jpeg
    92.6 KB · Views: 27

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