A very rare Russian audiophile GM-70 triode output tube with a copper anode. Manufacturer: ULYANOVSK. Excellent sound quality, high power! Almost equivalent to an 845 tube. NOS.
Triode tube 6S3P-DR - HF amplifier in input stages. Low noise level and long service life. Close analogs of tubes: W417A, EC86, PC86 (different pinout)
A rare Russian audiophile GM-70 output triode tube. Manufacturer: FOTON. Graphite anode. Excellent sound quality, high power! Almost equivalent to the 845 tube.
Russian 6S4P-EV triode vacuum tube is used as a high-frequency amplifier in the input stages. It features low noise and a long lifespan. Equivalents: EC86, PC86, W417A. NOS